How many grams of protein are needed to produce 23,000 cal of energy? Every gram of protein can produce 17 KJ of energy
Answers
A total of 96,320 kJ / 17 kJ per gram of protein = 5,670 grams of protein.
To determine the grams of protein needed to produce 23,000 calories of energy, we need to convert the calories to kilojoules (kJ) and then divide by the energy produced by each gram of protein.
23,000 calories = 96,320 kJ (1 calorie = 4.184 kJ)
Each gram of protein produces 17 kJ of energy.
Protein is an important nutrient for our bodies, as it provides the building blocks for our muscles, bones, and other tissues. It also plays a role in many cellular functions and processes. One of the functions of protein is to provide energy for our bodies, although this is not its primary role.
When we eat protein, our bodies break it down into amino acids, which can then be used for various purposes. One of these purposes is to produce energy.
Every gram of protein contains 4 calories, or 17 kilojoules, of energy. This is less than the amount of energy provided by a gram of fat (9 calories or 37 kilojoules) or a gram of carbohydrate (4 calories or 17 kilojoules), but it is still significant.
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Related Questions
The diagram shows changes of state between solid, liquid, and gas. The atoms of a substance lose energy during a change of state. Before the change, the atoms are close together but are able to slide past one another. A diagram has a triangle at center with gas on top, liquid on bottom right, solid on bottom left. An arrow from gas to liquid is labeled O, and an arrow from liquid to gas is labeled N. An arrow from solid to liquid is labeled P, and an arrow from liquid to solid is labeled Q. An arrow from solid to gas is labeled L, and an arrow from gas to solid is labeled M. Which arrow represents the change of state described above? M N P Q
Answers
An arrow from solid to gas is labeled L, and an arrow from gas to solid is labeled M represents the phase change. Therefore, the correct option is option Q.
A substance changing its phase by a physical process is called a phase change. The shift often happens when heat is applied or removed at a specific temperature, also referred to as the substance's melting or boiling point.
The temperature when a substance transforms from a solid into a liquid (or vice versa) is known as the melting point. The temperature that happens when a substance transforms from a liquid into a solid is known as the boiling point. The type of phase change is determined by the heat transfer's direction. An arrow from solid to gas is labeled L, and an arrow from gas to solid is labeled M.
Therefore, the correct option is option Q.
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what happens when an electron is released in an electric field
Answers
When an electron is released in an electric field, it will experience a force due to the electric field. The direction of the force will depend on the direction of the electric field and the charge of the electron. If the electron is negatively charged, it will be attracted towards the positively charged end of the electric field and repelled by the negatively charged end.
The force experienced by the electron will cause it to move in the direction of the electric field. The speed and acceleration of the electron will also be affected by the strength of the electric field. If the electric field is strong enough, the electron may gain enough energy to ionize atoms or molecules in its path, leading to the creation of additional charged particles.
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You are seated in a train that is stopped at the station. You look outside and see apple tree in the distance. Now use two different reference points to explain how the train can appear to be moving and not moving.
Answers
When you are seated in a train that is stopped at the station, you can observe an apple tree in the distance. Using two different reference points, it is possible to explain how the train can appear to be moving and not moving.The two different reference points that can be used in explaining this scenario are the train and the apple tree.
When the apple tree is used as a reference point, it appears to be stationary, while the train appears to be moving past it. This illusion of motion is caused by the relative position of the tree to the train.As the train remains stationary, your brain perceives the tree to be in motion. This happens because of the difference in perspective created by the fixed and moving objects in the frame of reference. This phenomenon is called parallax effect.On the other hand, if the train is used as a reference point, the tree appears to be moving in the opposite direction. From this perspective, the tree seems to be moving backward, while the train appears to be stationary. This phenomenon occurs because our brain uses the motion of the train as a reference point to judge the motion of the apple tree in the background.In conclusion, the apparent motion of the train when it is stationary can be explained by the use of two different reference points, which are the apple tree and the train itself. The illusion of motion is caused by the relative position of these objects to the observer, and the parallax effect that results from their differing perspectives.For such more question on stationary
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For this investigation, you used commercial juices. The juices are known to contain appreciable amounts of Vitamin C (Ascorbic acid). The vitamin C in the juice sample will react with the NaOH used in This means the volume of NaOH used in the neutralization reaction is higher than what it should have been making it appear like there are more moles of citric acid present. Therefore, the calculated concentration of the citric acid in the juice samples will be overestimated compared to the actual concentration in the commercial juices.
Answers
The calculated concentration of citric acid in the juice samples will be overestimated due to the interference of Vitamin C.
Vitamin C, also known as ascorbic acid, is present in significant amounts in commercial juices. When NaOH is added to the juice sample to neutralize the citric acid, it reacts with the vitamin C as well, causing the volume of NaOH used to be higher than it should be.
This results in an overestimation of the concentration of citric acid in the sample. The reaction between vitamin C and NaOH is:
C6H8O6 + 2NaOH → Na2C6H6O6 + 2H2O
The NaOH reacts with both citric acid and vitamin C in the sample, which leads to an inaccurate measurement of the actual concentration of citric acid present in the juice. Therefore, it is essential to consider this interference while analyzing the results of the experiment.
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Force, mass, and acceleration have to do with which law of motion?
Newton's 1st Law
Newton's 2nd Law
Newton's 3rd Law
Newton's 4th Law
Answers
Newton's law of motion states the relationship between the force acting on the body in motion. The relation between force, mass, and acceleration is given by Newton's second law.
What is Newton's second law?Newton's second law states the relationship between mass, force, and acceleration. It relates the force with the change of the motion of an object with a mass.
Newton's second law is given as,
\(\rm F = ma\)
Where F is force, m is the mass of the object and a is the acceleration.
Newton's first law is about inertia, the third law is about the law of action and reaction, and the fourth law is about the law of gravitation.
Therefore, option B. Newton's second law states the relationship between force, mass, and acceleration.
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1. Photosynthesis and respiration are two important processes. Discuss one of these processes and explain its
importance to an organism. In your answer, be sure to:
• identify the process being discussed
• identify the organelle where this process occurs
• identify two raw materials necessary for this process
• identify one energy-rich molecule that is produced by this process
• state how organisms use the energy-rich molecule that is produced
• state how a gas produced by this process is recycled in nature
Can anyone help meh with this ill do anything tbh
Answers
One important process in living organisms is photosynthesis. Photosynthesis is the process by which plants, algae, and some bacteria convert sunlight, carbon dioxide, and water into glucose (a sugar) and oxygen. It takes place primarily in the chloroplasts of plant cells.
To carry out photosynthesis, two raw materials are required: carbon dioxide (CO2) and water (H2O). These substances are absorbed from the atmosphere and soil, respectively. In the presence of sunlight, chlorophyll pigment in chloroplasts captures light energy, which is then used to convert carbon dioxide and water into glucose. Glucose is an energy-rich molecule that stores the captured solar energy in a chemical form.
Organisms, particularly plants, utilize glucose as a source of energy for various metabolic processes. It is broken down through cellular respiration to release energy for growth, reproduction, and maintenance of cellular activities. Glucose is also utilized to synthesize other important molecules like proteins, lipids, and nucleic acids.
During photosynthesis, oxygen is released as a byproduct. This oxygen is essential for the survival of organisms that rely on aerobic respiration, including humans and many other animals. Oxygen is consumed during respiration to generate energy, and carbon dioxide is produced as a waste product. In turn, carbon dioxide is recycled in nature through photosynthesis, completing the cycle of these interconnected processes.
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The process in which substances are changed into different substances is called
A. Chemical property
B. Physical change
C. Physical property
D. Chemical change
Two elements in the same group may have the same ion charge.
A. True
B. False
A polar covalent bond involves _______________ of valence electrons?
A. an equal sharing
B. a transfer
C. an electrostatic attraction
D an unequal sharing
Answers
Answer:
1. chemical change
2. true
3. an unequal sharing
Explanation:
100.0 mL of 3.8M NaCN, the minimum lethal concentration of sodium cyanide in blood serum
Answers
The given question is incomplete. The complete question is:
Calculate the number of moles and the mass of the solute in each of the following solution: 100.0 mL of 3.8 × 10−5 M NaCN, the minimum lethal concentration of sodium cyanide in blood serum
Answer: The number of moles and the mass of the solute are \(0.38\times 10^{-5}\) and \(18.62\times 10^{-5}g\) respectively
Explanation:
Molarity of a solution is defined as the number of moles of solute dissolved per liter of the solution.
\(Molarity=\frac{n\times 1000}{V_s}\)
where,
n = moles of solute
\(V_s\) = volume of solution in ml
\(3.8\times 10^{-5}M=\frac{n\times 1000}{100.0}\)
\(n=0.38\times 10^{-5}\)
n = moles of \(NaCN\) = \(\frac{\text {given mass}}{\text {Molar mass}}\)
\(0.38\times 10^{-5}=\frac{x}{49g/mol}\)
\(x=18.62\times 10^{-5}g\)
Thus the number of moles and the mass of the solute are \(0.38\times 10^{-5}\) and \(18.62\times 10^{-5}g\) respectively
If acrylamide is present in final cooked product of a
food, and the amount of acrylamide can vary depending on the
consumer’s cooking preference (eg: how crispy the fries are cooked
to), should the
Answers
Yes, it is recommended to minimize the formation of acrylamide in food products as it is considered a potential carcinogen.
Food manufacturers and consumers should follow guidelines and cooking practices that help reduce the formation of acrylamide, such as avoiding overcooking or burning foods, using lower cooking temperatures, and employing cooking methods that produce less acrylamide formation. Any drug, radionuclide, or radiation that encourages carcinogenesis (the development of cancer) is considered a carcinogen. This may be as a result of the possibility of genomic damage or cellular metabolic processes being upset. The radiation that certain radioactive compounds release, such gamma rays and alpha particles, is what is thought to be responsible for their carcinogenic activities.
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look at the balanced equation for the production of ammonia: n2(g) 3h2(g) -> 2nh3(g) suppose you had 6 moles of nitrogen gas, but only 3 moles of hydrogen gas. how many moles of ammonia gas could be made? explain your answer.
Answers
If we have 6 moles of nitrogen gas and 3 moles of hydrogen gas, the limiting reactant is hydrogen gas, and we can produce 3 moles of ammonia gas according to the stoichiometry of the balanced equation.
what is ammonia gas?
The gas ammonia (\(NH_3\)) is colourless and has a strong odour. It is employed in the creation of fertiliser, refrigeration, dyes, and cleaning products. It is very soluble in water and, when inhaled in large doses, can be poisonous and unpleasant.
The balanced equation for the production of ammonia is: N₂(g) + 3H₂(g) → 2NH₃(g)
According to the balanced equation, the stoichiometric ratio between nitrogen gas (N₂) and ammonia gas (NH₃) is 1:2. This means that for every mole of nitrogen gas reacted, two moles of ammonia gas are produced.
Given that we have 6 moles of nitrogen gas and 3 moles of hydrogen gas, we can determine the limiting reactant by comparing the stoichiometric ratios. Since the stoichiometric ratio of nitrogen gas to ammonia gas is 1:2, we can only produce as much ammonia gas as the limiting reactant allows.
In this case, the limiting reactant is hydrogen gas (H₂) because we have fewer moles of it compared to the stoichiometric ratio. Since the ratio of nitrogen gas to hydrogen gas is 6:3, we can only produce half as many moles of ammonia gas. Therefore, we can produce 3 moles of ammonia gas.
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What’s the mass of a empty glass measuring cup
Answers
4 empty cups is equal to 32 OZ
Draw the sun and label the 4 layers from middle to the surface.
Answers
The layers of the sun can be seen in the image attached.
What are the layers of the sun?The sun is composed of several layers, including:
Core: The innermost layer of the sun where nuclear fusion takes place. The temperature in the core is about 15 million degrees Celsius.
Radiative Zone: This layer is between the core and the convection zone. Energy produced in the core is transported through the radiative zone by photons.
Convection Zone: The outermost layer of the sun's interior where hot gas rises and cooler gas sinks. The energy produced in the core is carried to the surface by convection.
Photosphere: The visible surface of the sun where most of the sun's light is emitted. The temperature of the photosphere is around 5,500 degrees Celsius.
Chromosphere: A thin layer above the photosphere that emits a reddish glow during solar eclipses. The temperature of the chromosphere ranges from 4,000 to 10,000 degrees Celsius.
Corona: The outermost layer of the sun's atmosphere, extending millions of kilometers into space. The temperature of the corona is extremely high, around 1 to 3 million degrees Celsius.
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8. (07.05 LC)
Which statement is correct about the rate of most chemical reactions? (5 points)
1.It increases when the concentration of reactants decreases.
2.It does not depend on the concentration of reactants.
3.It increases when the temperature increases.
4.It does not depend on the temperature.
Answers
Answer: 3.It increases when the temperature increases.
Explanation:
The speed of most chemical reactions increase as if the temperature of those same reactions increase as well. This is because a higher temperature allows for reactants to gain the necessary activation energy needed to react.
Enzymes are another reason. Enzymes are catalysts in reactions which reduce the activation energy needed for a reaction to occur and enzymes work best in certain higher temperatures - not too high - so this also leads to the reaction speed increasing due to temperature increases.
Answer:
It increases when the temperature increases.
Explanation:
I took the test and the other guy is right ;)
Which two statements describe how volcanic activity can affect Earth's crust?
A) A volcano are most likely to form near the center of tectonic plates
B) A volcanic mountain becomes smaller each time it erupts
C) A volcano can suddenly get taller every time it erupts
D) Hot magma from inside earth is released at weak points in the crust
Answers
Answer:
D
Explanation:
The weak crust of the earth does not hold together as well as strong crust.
Answer:
A and B was right in our test.
Explanation:
A was: A volcano can suddenly get taller every time it erupts
B was: Hot magma from inside Earth is released at weak points in the crust.
SOMONE HELP DUE IN 5 MINUTES
Answers
Answer:
Silicon
Explanation:
Nucleus
14 protons
Group 14
Number 14
+4, +2, or -4
Answer:
Explanation:
Name of the part of this atom labeled z is nucleus.
number of protons is 14 .
the given element is silicion and it lies in group 14.
the no of period that contains this element is 3.
charge formed on the ion formed from this atom is positive charge because it gives 4 electron to other element .
If the element gains the electron then it has negative charge where as when it loses it will have positive charge.
3. The Solar Nebula Theory states that the Sun and all objects in the Solar System were
formed when a cloud of gas and dust (a nebula) collapsed. What observational
evidence supports this theory?
a. Most of the icy objects are located closer to the Sun than Jupiter
b. The inclination of the orbits is larger for objects near the Sun than for far away
objects
C. Most objects have orbits that are highly elliptical
d. Most objects orbit in the same direction
Answers
Answer:
C or B(most likley C)
Explanation:
In oxidative phosphorylation, what is being oxidized and what is being phosphorylated?.
Answers
NADH; ADP are being oxidized and phosphorylated.
A powerful electron carrier is NAD+. Its duty is to transport extremely energetic electrons from one location to another. In addition to absorbing the high-energy electrons, NADH is created by absorbing hydrogen. Once the electron and hydrogen atom have been delivered to their intended location, NADH can be transformed back into NAD+.
The breakdown of glucose into pyruvate during glycolysis results in the conversion of two NAD+ molecules into NADH. Lactic acid in humans and ethanol in yeast and plants are the byproducts of fermentation. NADH is changed back into NAD+ through the conversion of pyruvate into lactic acid or ethanol (as it releases its electrons and hydrogen atom). As a result, two NAD+ molecules are recycled during fermentation's glycolysis stage.
ADP, commonly known as adenosine diphosphate, is a substance created inside of living cells. It frequently undergoes conversion to adenosine triphosphate (ATP), a highly energetic molecule involved in numerous metabolic processes. Adenine (a nucleobase), ribose (a simple sugar), and two phosphate molecules make up ADP (phosphorous ions).
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Calcium chloride can be used to
melt ice during winter. A 750 mL
sample of melted snow was
collected and the calcium chloride
analyzed. The sample contained
1.54 g of calcium chloride.
Calculate the percent by mass
concentration of calcium chloride
Answers
The percent by mass concentration of calcium chloride is 0.20%
What is mass concentration?
Mass concentration, which is a quantity to measure this same concentration of a solute in the solution, is similar to molar concentration, molality, and mass fraction. It reveals how much of a solute there is in a certain volume of solution. Let's use coffee as an example to try to understand it. By combining coffee, sugar, and hot water, a straightforward instant coffee can be made. 10 g of coffee and 5 g of sugar are required to make a typical cup (250 mL) of coffee. Depending on individual preferences, the sum may change. We will need twice as much of the ingredients—20 g of caffeine and 10 g of sugar—to make two cups (500 mL).
When the mass of a solute as well as the mass of a solution are given, the mass percent is employed to express this same concentration of a solution:
Mass Percent=Mass of Solute/Mass of Solution×100%
% by mass = mass of substance/ mass of solution * 100 %
= 1.54/750*100 % = 0.20%
The percent by mass concentration of calcium chloride is 0.20%
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For this section, you must write a laboratory report to confirm Newton’s Second Law. Use the simulation to conduct your experiment and gather data for this section. I need help.
Answers
To confirm Newton’s Second Law using a laboratory report, you will need to conduct an experiment using a simulation and gather data. Newton’s Second Law states that force equals mass times acceleration.
Here's how you can write a laboratory report to confirm Newton’s Second Law using the simulation and gathered data. Introduction: This section should include a brief explanation of the theory behind Newton’s Second Law and what you will be testing in your experiment. It should also include your hypothesis.
Procedure: This section should explain the steps you took to conduct your experiment. In this case, it would involve using the simulation to apply different forces to objects with different masses and measuring their acceleration.
Data: This section should present the data you collected during your experiment. It can be presented in tables or graphs, and should include measurements of force, mass, and acceleration for each trial.
Analysis: This section should analyze the data you collected to determine if it supports your hypothesis and confirms Newton’s Second Law.
Conclusion: This section should summarize your findings and draw conclusions based on the data you collected. It should also discuss any errors or limitations of the experiment and suggest areas for further research.
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What is the ratio of concentrations of bicarbonate and carbonic acid ({CO}_{2}) in a blood sample that has a pH of 6.2 ? {pKa} of Carbonic acid is 6.37 .
Answers
The ratio of concentrations of bicarbonate to carbonic aciddin a blood sample with a pH of 6.2 is approximately 3.98:1.
The Henderson-Hasselbalch equation can be used to calculate the ratio of bicarbonate to carbonic acid. The equation is given by pH = pKa + log([HCO3-]/[CO2]).
Given a pH of 6.2 and a pKa of carbonic acid as 6.37, we can rearrange the equation and solve for the ratio [HCO3-]/[CO2].
Using the equation, we find that log([HCO3-]/[CO2]) = pH - pKa = 6.2 - 6.37 = -0.17.
Taking the antilog of -0.17, we find that [HCO3-]/[CO2] ≈ 0.445.
To obtain the ratio of bicarbonate to carbonic acid, we can invert the value: [CO2]/[HCO3-] ≈ 1/0.445 ≈ 2.24.
Converting to a whole number ratio, the ratio of concentrations of bicarbonate to carbonic acid is approximately 3.98:1.
The ratio of bicarbonate to carbonic acid in a blood sample with a pH of 6.2 is approximately 3.98:1. This ratio is crucial for maintaining the acid-base balance in the body and plays a significant role in regulating blood pH and bicarbonate buffering.
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If sodium bicarbonate is added to an aqueous solution of ethanol, will carbon dioxide gas evolve?
Answers
No, carbon dioxide gas will not evolve when sodium bicarbonate is added to an aqueous solution of ethanol.
Sodium bicarbonate (NaHCO3), commonly known as baking soda, is a weak base. When it reacts with an acid, such as acetic acid or citric acid, carbon dioxide gas (CO2) is produced as a byproduct. However, in the given scenario where sodium bicarbonate is added to an aqueous solution of ethanol, which is not acidic, there is no acid present to react with the sodium bicarbonate. As a result, there is no chemical reaction that would release carbon dioxide gas. Therefore, the addition of sodium bicarbonate to an aqueous solution of ethanol would not lead to the evolution of carbon dioxide gas.
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A train station in Tokyo uses tiles that convert people’s footsteps into electricity.
A.Restore
B. Rethink
C. Reduce
D. reuse
Answers
Answer:
reuse
Explanation:
Name the following covalent molecules:
SeF
Answers
Answer:
do you mean DeF?
Explanation:
Which temperature is identical on both the Celsius and Fahrenheit scales.
a) 100 degrees
b) 32 degrees
c) 0 degrees
d) -40 degrees
Answers
The temperature that is identical on both the Celsius and Fahrenheit scales is -40 degrees. At -40 degrees, the Celsius and Fahrenheit scales have the same numerical value.
At -40 degrees, the Celsius and Fahrenheit scales have the same numerical value. To convert between Celsius and Fahrenheit temperatures, you can use the formula: F = (9/5)C + 32. When -40 degrees Celsius is plugged into this equation, the result is -40 degrees Fahrenheit.
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The accepted value for the molar volume of a gas is 22.4 L. Sarah’s experimental data indicated that a mole of a gas had a volume of 19.6L. What was her percent error?
Answers
Answer:
12.5%.
Explanation:
The following data were obtained from the question:
Accepted value = 22.4 L
Experimental value = 19.6L
Percentage error =.?
Percentage error can be obtained by using the following formula:
Percentage error = |Experimental value – Actual value | / actual value × 100
Percentage error = |19.6 – 22.4|/22.4 × 100
Percentage error = 2.8 /22.4 × 100
Percentage error = 280/22.4
Percentage error = 12.5%
Therefore, the percentage error of Sarah is 12.5%
PLEASE HELP ME! 50 POINTS! AND BRAINLYEST!!!
14. What would an effective conclusion need to include?
Answers
Answer:
It would need to reflect what you said in the introduction. Also it would need to summarize everything you said.
1.A space shuttle's wings are useless as it travels around the exosphere. Explain, in your own words, why the wings are so useless and how the shuttles can move around.
2.Explain, in your own words, the thermosphere and the stratosphere are our hottest atmosphere layers.
3.Explain, in your own words, how and why “shooting stars” occur. For example, why and what causes meteors to burn up.
4.Explain, in your own words, the importance of our ozone layer in the stratosphere.
5.Explain, in your own words, why weather only occurs in the troposphere.
PLEASE HELP!!!!! Use your own words please! I will give the brainiest to the person who answers it!
Answers
Thrust acts on the spacecraft and propels in the space.
How space shuttles move?1. The force created by the shuttle's engines in expelling the burning fuel produces an equal thrust in the opposite direction. This thrust acts on the spacecraft and propels in the space.
2. The thermosphere and the stratosphere are our hottest atmosphere layers because these two layers are present near the sun as compared to other layers of atmosphere.
3. When the meteors hit the atmosphere, meteors rub against air particles and create friction which is heating the meteors. The heat vaporizes most meteors, creating what we call shooting stars.
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What is a tissue?
Need help
Answers
Answer:
Tissue is a group of cells that have similar structure and that function together as a unit. There are four main tissue types in the body: epithelial, connective, muscle, and nervous. ...
A weak acid (HA) has a pKa value of 7.44. At what pH is [HA] = [A-]? pH = What is the predominant species of HA at pH 5.58? OA- HA
Answers
A weak acid (HA) has a pKa value of 7.44. This means that at pH 7.44, the concentration of the acid ([HA]) is equal to the concentration of its conjugate base ([A-]).
At pH 5.58, the acid will be the predominant species because the pH is lower than the pKa value. This means that there is a higher concentration of [H+] ions in the solution, causing the equilibrium to shift towards the acid form (HA).
In conclusion, at pH 7.44, [HA] = [A⁻] and at pH 5.58, the predominant species is HA.
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will decreasing the tbcl concentration affect the rate constant in this experiment? explain why or why not
Answers
Decreasing the TBCl concentration will not affect the rate constant in this experiment. The rate constant is determined by the specific reaction and temperature conditions and is independent of the reactant concentrations.
The rate constant (k) is a proportionality constant that relates the rate of a reaction to the concentrations of the reactants. However, the rate constant itself is not affected by the concentrations of the reactants. It is determined by the specific reaction and temperature conditions.
The rate of a chemical reaction can be expressed using the rate equation, which typically includes the concentration terms for the reactants raised to certain powers.
These powers, known as reaction orders, can be determined experimentally. However, the rate constant is a separate factor in the rate equation and is not dependent on the reactant concentrations.
By decreasing the TBCl concentration, the rate of the reaction may be affected, as the rate is directly proportional to the reactant concentrations.
However, the rate constant itself remains unchanged. The rate constant is influenced by factors such as temperature, presence of catalysts, and the nature of the reacting species, but not by the concentrations of the reactants.
Therefore, decreasing the TBCl concentration will not affect the rate constant in this experiment.
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