Answers
Explanation:
The temperature of the gas is directly proportional to the volume the gas is occupying provided the pressure is constant.
so;
v/t = constant
1/(273+23) = v/(273+35)
v = 308 / 296
The final volume of the balloon is 1.03 L.
To calculate the final volume of the balloon, we apply Charles's law
What is Charles's law?States that trhe volume of a fixed mass of gas is directly proportional to its temperature at constant pressure.
Formula:
V₁/T₁ = V₂/T₂............... Equation 1Where:
V₁ = Initial volume of the balloonT₁ = initial temperature of the balloonV₂ = final volume of the balloonT₂ = final temperature of the balloonMake V₂ The subject of the equation
V₂ = V₁T₂/T₁............. Equation 2From the question,
Given:
V₁ = 1 LT₁ = 23 °C = (273+23) K = 300 KT₂ = 35 °C = (273+35) K = 308 KSubstitute these values into equation 2
V₂ = (1×308)/300V₂ = 1.03 LHence, The final volume of the balloon is 1.03 L.
Learn more about Charles's law here: https://brainly.com/question/16927784
Related Questions
What happens when white light passes through a blue then a yellow filter
Answer quick
Answers
Answer:
At the end, no light passes through.
Explanation:
First, when white light enters a blue filter, only blue light is allowed to pass through, and all the other components of light are absorbed. When blue light then reaches the yellow filter, it absorbs the blue light, because it is designed to allow only the yellow component of the light to pass through. White light consists of the seven rainbow colours: red, orange, yellow, green, blue, indigo and violet.
Determine the mass of ammonium nitrate (in g) that has the same number of nitrogen atoms as 2.2 liters of liquid nitrogen (N2). Density of liquid nitrogen is 0.808 g/mL.
Answers
Answer:
The mass of ammonium nitrate that has the same number of nitrogen atoms is 5077.5 g.
Explanation:
To calculate the mass of ammonium nitrate we need to find the number of atoms in liquid nitrogen, as follows:
\(d_{N} = \frac{m_{N}}{V}\)
Where:
\(d_{N}\): is the density of liquid nitrogen = 0.808 g/mL
\(m_{N}\): is the mass of liquid nitrogen
V: is the volume of liquid nitrogen = 2.2 L
By calculating the mass of liquid nitrogen we can find the number of atoms:
\(m_{N}=d_{N}*V = 0.808 g/mL*\frac{1000 mL}{1 L}*2.2 L=1777.6 g\)
\(n = N_{A}*\eta_{N}\)
\(n=N_{A}*\frac{m_{N}}{M_{N}}\)
Where:
\(N_{A}\): is the Avogadro's number = 6.022x10²³ atoms/mol
n: is the number of atoms of liquid nitrogen
\(\eta_{N}\): is the number of moles of liquid nitrogen
\(M_{N}\): is the molar mass of liquid nitrogen = 28.014 g/mol
\(n = \frac{6.022 \cdot 10^{23} atoms}{1 mol}*\frac{1777.6 g}{28.014 g/mol} = 3.82 \cdot 10^{25} atoms\)
Finally, the mass of ammonium nitrate is:
\(m_{NH_{4}NO_{3}} = \frac{n*M_{NH_{4}NO_{3}}}{N_{A}}\)
Where:
\(M_{NH_{4}NO_{3}}\): is the molar mass of ammonium nitrate = 80.043 g/mol
\( m_{NH_{4}NO_{3}} = \frac{3.82 \cdot 10^{25} atoms*80.043 g/mol}{6.022 \cdot 10^{23} atoms/mol} = 5077.5 g \)
Hence, the mass of ammonium nitrate that has the same number of nitrogen atoms is 5077.5 g.
I hope it helps you!
Calculate the concentration of ammonium nitrate in a solution prepared by dissolving 3.20 g of the salt in enough water to make 100. mL of solution, then diluting 2.00 mL of this solution to a volume of 25.00 mL.
Answers
Answer:
.032 M .
Explanation:
Molecular weight of ammonium nitrate is 80 .
3.2 g = 3.2 / 80 moles
= .04 moles
volume = 100 mL = 0.1 L
Molarity of 100 mL solution = .04 moles / 0.1 L
= 0.4 M solution.
Now 2 mL solution of 0.4 M is diluted to a volume of 25 mL .
Using the formula S₁ V₁ = S₂V₂
0.4 M x 2 mL = S₂ x 25 mL
S₂ = .4 x 2 / 25
= .032 M
Hence required concentration is .032 M .
Nuclear changes lab
How does energy change in these reactions? Is energy needed to start the reactions or is energy given off in the reactions? For each type of reaction, approximately how much energy is released?
How do these energy changes compare in scale to other types of reactions, such as chemical reactions?
Answers
Energy is released during nuclear reactions. To calculate energy changes, use the attached image below. Nuclear reactions produce far more energy than other types of reactions, such as chemical reactions.
What is nuclear reaction ?The term nuclear reaction is defined as a process in which two nuclei, or a nucleus and an external subatomic particle, collide to produce one or more new nuclides.
Normally, chemical reactions take place outside the nucleus. Nuclear reactions occur only within the nucleus. When chemical reactions occur, elements retain their identity, as do the nuclei of atoms.
Thus, in nuclear reactions, the nuclei of atoms undergo complete transformations, resulting in the formation of new elements.
The nuclear reactions are as follows:
Alpha decay - PO₈₄²°⁶⇒ ₈₂Pb²°⁶ + He⁴₂
Beta⁻ decay - Na²²₁₁ ⇒ Na ²²₁₀ + e°₋₁
Beta⁺ decay - Na²⁴₁₁ ⇒ Na₁₀²⁴ + e°₋₁+β
Gamma - CO⁶°₂₇ ⇒ Ni⁶⁰₂₆ + e°₋₁ +γ
Fission - U²³⁵₉₂ + n₀¹ ⇒ Ba¹⁴⁴₅₆ + Kr⁸⁹₃₆ +3n₀¹
Fusion- H₁² +H³₁ ⇒ He⁴₂ + n¹₀ +17.59MeV
To learn more about the nuclear reaction, follow the link;
https://brainly.com/question/16526663
#SPJ9
Glycolysis is the process by which energy is harvested from glucose by living things. Several of the reactions of glycolysis are thermodynamically unfavorable (nonspontaneous), but proceed when they are coupled with other reactions.
Reaction A: Pi+glucose⟶glucose-6-phosphate+H2OΔG=13.8 kJ/mol
Reaction B: Pi+fructose-6-phosphate⟶fructose-1,6-bisphosphate+H2OΔG=16.3 kJ/mol
Reaction C: ATP+H2O⟶ADP+PiΔG=−30.5 kJ/mol
Select every unfavorable reaction.
reaction B
reaction C
reaction A
Select every set of coupled reactions where the overall reaction is favorable.
reactions B and C
reactions A and B
reactions A and C
What is the net change in free energy if one set of reactions from the previous question is coupled so that the overall reaction is favorable? Note that if you selected more than one set of coupled reactions as favorable in the previous question, you may enter the net change for any one of your selected sets.
Answers
Answer:
Unfavorable reactions: Reaction A and Reaction B.
Coupled reactions favorable: Reactions B and C and Reactions A and C.
Net change:
Reactions B and C : -14.2kJ/mol
Reactions A and B : 30.1kJ/mol
Reactions A and C: -16.7kJ/mol
Explanation:
A reaction is thermodynamically favorable (spontaneous) if ΔG < 0. Thus, the unfavorable reactions -ΔG > 0- are:
Reaction A and reaction B.
When reaction C is coupled with reaction B and reaction A the chemical equation is:
ATP + fructose-1,6-phosphate ⟶ ADP + fructose-1,6-bisphosphate
ΔG = 16.3 - 30.5 = -14.2 kJ/mol
ATP + glucose ⟶ ADP + glucose-6-phosphate
ΔG = 13.8 - 30.5 = -16.7 kJ/mol
The coupled reaction of A and B has a change in free energy of:
ΔG = 13.8 + 16.3 = 30.1 kJ/mol
Which indicator would be the best to use if 0. 050 m benzoic acid ( k a = 6. 6 × 10 –5) is titrated with 0. 050 m naoh?
Answers
I would say Phenolphthalein
if two different collections of water are the same temperature, but one collection has a higher salt salinity (salt content) what liquid is more dense? The collection of water with salt in it or the collection of water without salt.
Answers
• The more salt is dissolved in water, the greater its salinity,
• The greater the salinity of a sample , the greater the mass of the sample.
• Meaning the collection of water with salt in it will be more dense / heavier than the collection of water without salt
How many moles of
Cts are needed to make
15.5 moles of CO₂? How
much O2 will be needed?
0₂
C₂Hs +50₂3CO₂ + 4H₂O
Answers
1. The number of mole of C₃H₈ needed to make 15.5 moles of CO₂ is 5.2 moles
2. The number of moles of O₂ needed is 25.8 moles
1. How do I determine the number of mole of C₃H₈ needed?The number of mole of C₃H₈ needed can be obtained as illustrasted below:
C₃H₈ + 5O₂ -> 3CO₂ + 4H₂O
From the balanced equation above,
3 moles of CO₂ was obtained from 1 mole of C₃H₈
Therefore,
15.5 moles of CO₂ will be obtain from = (15.5 × 1) / 3 = 5.2 moles of C₃H₈
Thus, number of mole of C₃H₈ needed is 5.2 moles
2. How do I determine the number of mole of O₂ needed?We can obtain the number of mole of O₂ needed as follow:
C₃H₈ + 5O₂ -> 3CO₂ + 4H₂O
From the balanced equation above,
3 moles of CO₂ was obtained from 5 moles of O₂
Therefore,
15.5 moles of CO₂ will be obtain from = (15.5 × 5) / 3 = 25.8 moles of O₂
Thus, number of mole of O₂ needed is 25.8 moles
Learn more about number of mole:
https://brainly.com/question/23350512
#SPJ1
Complete question:
How many moles of C₃H₈ are needed to make
15.5 moles of CO₂? How much O₂ will be needed?
C₃H₈ + 5O₂ -> 3CO₂ + 4H₂O
Acetic acid has a pKa of 4.74. Buffer A: 0.10 M HC2H3O2, 0.10 M NaC2H3O2 Buffer B: 0.30 M HC2H3O2, 0.30 M NaC2H3O2 Buffer C: 0.50 M HC2H3O2, 0.10 M NaC2H3O2 Which of the above buffers has the highest buffer capacity? [ Select ] Which of the above buffers has the lowest buffer capacity? [ Select ]
Answers
From the data provided;
Buffer B has the highest buffer capacityBuffer C has the lowest buffer capacityWhat is a buffer?A buffer is a solution which resists changes to its pH when a small quantity of acid or base is added to it.
The buffer capacity is determined using the Henderson-Hasselbach equation:
pH = pKa + log ([CH3COO-]/[CH3COOH])For Buffer A: pH = 4.74 + log(0.10/010) = 4.74
Buffer B: pH = 4.74 + log(0.30/030) = 4.74
For Buffer C: pH = 4.74 + log (0.10/0.50) = 4.04
Buffer A and Buffer B has same pH value as the pKa of acetic acid.
However, Buffer B has higher concentration of the components compared to buffer A, therefore, Buffer B has the highest buffer capacity.
The pH of buffer C is lower than pKa of acetic acid. Hence, buffer C has the lowest buffer capacity.
Learn more about buffers at: https://brainly.com/question/22390063
An analysis of a compound shows that it consists of 36.8% nitrogen and 63.2% oxygen
Answers
Answer:
This question is incomplete, however, it is asking to calculate the empirical formula of the compound.
The empirical formula is N2O3
Explanation:
The following information about a compound was got from the question:
N = 36.8%
O = 63.2%
It can be said that the compound contains 36.8g of nitrogen (N) and 63.2g of oxygen (O).
Next, we convert each mass composition to moles by dividing by their respective molar masses.
N = 36.8g ÷ 14g/mol = 2.628mol
O = 63.2g ÷ 16g/mol = 3.95mol
Next, we divide each mole value by the smallest value (2.628mol).
N = 2.628mol ÷ 2.628 = 1
O = 3.95mol ÷ 2.628 = 1.5
We multiply each value by 2 to get a empirical ratio.
N = 2
O = 3
The ratio of N:O is 2:3, hence, the empirical formula is N2O3.
When solid S1 is heated, it breaks up into gas G and another solid S2. The solids S1 and S2 and the gas G are all pure substances. On the basis of this information alone, which substance or substances must be compounds? A.S1 only B.S2 only C.S1 and S2 D.S1 and G
Answers
Answer:
A.S1 only
Explanation:
A compound is one of the pure substances (other being element) that forms when two or more atoms of an element are chemically combined. According to this question, a solid S1 is heated and it breaks up into gas G and another solid S2 as follows:
S1 (s) ➡ G (g) + S2 (s)
Based on the information in the questio, the solids S1, S2 and the gas G are all pure substances. However, since solid S1 broke down into two other pure substances, it means solid S1 is originally a chemical combination of both products, which denotes a COMPOUND. Note that Gas G and Solid S2 are most likely elements.
What sign of chemical change occurs during chemiluminesence?
Production of heat
Production of a gas
Production of light
O Production of a solid (precipitation)
Answers
Answer:
Emission of Light
Explanation:
Chemiluminescence is the emission of light as the result of a chemical reaction, and not a property of a specific compound.
Dont know if you were asking for this but hope it helps
Which best describes the activation energy on the graph below?
Potential Energy
Reaction Progress
3
OA. The vertical difference between 1 and 3
B. The vertical difference between 1 and 2
OC. The difference between the x-axis and 2
OD. The vertical difference between 2 and 3
Answers
The statement that best describes the activation energy on the graph below is the vertical difference between 1 and 2 (option B).
What is activation energy?Activation energy is the energy required to initiate a reaction. For example, the flame from the fuse of a firecracker provides a small initial amount of energy, after which the explosive reaction proceeds by itself, releasing a considerably larger quantity of energy.
According to this question, a reaction proceeds from 1 to 3. The activation energy needed for the reaction to be initiated is the vertical line that extends to the peak of 2.
Therefore, it can be said that the statement that best describes the activation energy on the graph below is the vertical difference between 1 and 2.
Learn more about activation energy at: https://brainly.com/question/11334504
#SPJ1
5._____is and example of an element and __is an example of compound
A. MIXTURES
B. CARBON
C. PURE
D. CARBON DIOXIDE
PLS ANSWER IT
ITS SCIENCE
Answers
Answer:
Carbon Dioxide is and example of an element and Carbon is an example of compound
Rough ER is connected to the nucleus membrane and to
Answers
Rough ER is connected to the nuclear membrane and is responsible for the synthesis and processing of proteins.
The rough endoplasmic reticulum (ER) is a network of membrane-bound sacs and tubules that is studded with ribosomes on its surface. These ribosomes are responsible for protein synthesis. The rough ER is connected to the nuclear membrane because it receives instructions for protein synthesis from the DNA in the nucleus. This connection allows for the efficient transfer of genetic information from the nucleus to the rough ER.
Once the ribosomes on the rough ER synthesize proteins, the rough ER is also involved in the processing and modification of these proteins. It helps in folding the newly synthesized proteins into their functional three-dimensional shapes and also adds various modifications such as glycosylation (the addition of sugar molecules) or signal sequences that target the proteins to specific locations within or outside the cell.
After processing, the proteins may be transported to other parts of the cell or exported to the cell membrane or extracellular space. The connection between the rough ER and the nuclear membrane ensures a coordinated flow of genetic information and protein synthesis, allowing the cell to efficiently carry out its functions.
for such more questions on proteins
https://brainly.com/question/30245761
#SPJ8
why we add PH10 When we determine the zn ion
Answers
Answer:
to make it basic from acidic
How was electron dicovered (detailed answer required)
Answers
Answer:
J.J. Thomson.
Explanation:
The credit for the discovery of the electron and its properties goes to J.J. Thomson based on his experiments carried out in a discharge tube. He suggested that electrons are necessary constituents of all atoms. J.J. Thomson carried out experiments by taking a gas at low pressure of 0.01mm Hg in a discharge tube.
Answer:
J.J. Thomson used a Crookes, or cathode ray, tube to conduct experiments that led to the discovery of the electron in 1897. He provided evidence that cathode rays have a negative charge. He also investigated positively charged neon gas particles.
Explanation:
Which binary molecular compound includes an element with five atoms of one element?
Answers
Answer:
For example, N2O4 is referred to as dinitrogen tetroxide, not dinitrogen tetraoxide, and CO is called carbon monoxide, not carbon monooxide.
...
Binary molecular (covalent) compounds.
Prefixes used in chemical nomenclature
prefix number of atoms
tetra- 4
penta- 5
hexa- 6
Explanation:
The pressure of a sample of CH4 gas (6.022 g) in a 30.0 L vessel at 402 K is __________ atm.
Answers
Answer: 0.42 atm
Explanation:
For this problem, we are going to use the ideal gas law for pressure, which is \(P=\frac{nRT}{V}\). If you do not know yet, R is the ideal gas constant, \(0.0821\frac{L*atm}{mol*K}\)First, we must find the number of CH₄ moles.
\(6.022gCH_{4} *\frac{1molCH_{4} }{16.043gCH_{4} } =0.38molCH_{4}\)
Next, we will plug in our given information to the ideal gas law for pressure.
\(P=\frac{nRT}{V}\)
\(P=\frac{0.38mol*0.0821\frac{L*atm}{mol*K} *402K}{30.0L} =0.42 atm\)
The answer to this, according to the work done above, is 0.42 atm.
I hope this helps! Pls mark brainliest!! :)
The pressure of a sample of CH4 gas (6.022 g) in a 30.0 L vessel at 402 K is 0.413 atm.
How do we calculate the pressure of gas?
Pressure of gas will be calculated by using the ideal gas equation as:
PV = nRT, where
P = pressure of gas = ?
V = volume of gas = 30L
R = universal gas constant = 0.082 L·atm·K⁻¹·mol⁻¹
T = temperature of gas = 402 K
n is moles of gas & it will be calculated as:
n = W/M, where
W = given mass of CH₄ = 6.022g
M = molar mass of CH₄ = 16g/mol
n = 6.022 / 16 = 0.376mol
Now putting all these values on the above equation, we get
P = (0.376)(0.082)(402) / (30)
P = 0.413 atm
Hence required pressure of methane gas is 0.413 atm.
To know more about the ideal gas equation, visit the below link:
brainly.com/question/24236411
#SPJ1
What is the zonecreated if force of separation occurs?
Answers
visible light travels from place to place as a
Answers
Answer:
Light can travel in three ways from a source to another location: (1) directly from the source through empty space; (2) through various media; (3) after being reflected from a mirror.
Explanation:
What type of reaction heats the water to generate steam in a nuclear power plant
Answers
Briefly describe what happens during each step of photosynthesis:
Sunlight absorption:
Light-dependent reactions:
Light-independent reactions:
Answers
Photosynthesis is the process in which plants use sunlight, water, and carbon dioxide to make oxygen and energy in the form of sugar. During each step of photosynthesis that is Sunlight absorption, Light-dependent reactions, Light-independent reactions explain in below description.
What is photosynthesis ?Sunlight absorption: Special pigments in photosynthetic cells absorb light energy. Plant pigment molecules absorb light with wavelengths ranging from 400 nm to 700 nm. This wavelength range is known as photosynthetically active radiation (PAR).
Light-dependent reactions: Light energy is used in light-dependent reactions to create two molecules required for the next stage of photosynthesis: the energy storage molecule ATP and the reduced electron carrier NADPH. Light reactions occur in the thylakoid membranes of chloroplast organelles in plants.
Light-independent reactions: Photosynthesis's light-independent reactions occur within the stroma. It contains enzymes that, in collaboration with ATP and NADPH, "fix" carbon from carbon dioxide into molecules that can be used to make glucose. The stroma also stores the chloroplast's own genetic material.
Thus, These are the steps of photosynthesis.
To learn more about the photosynthesis, follow the link;
https://brainly.com/question/29775046
#SPJ1
How many copper atoms are in 5.33mol CuCl2
Answers
The number of copper atoms are in 5.33mol CuCl2 =5.33 × 6.023 × 1023 = 3.21 × 1024
Copper AtomsThe chemical element copper has the atomic number 29 and the symbol Cu. It is an extremely high thermal and electrical conductivity metal that is soft, malleable, and ductile. Pure copper has a pinkish-orange tint when it is first exposed to the air. They all have 29 protons in their nuclei. However, they also contain neutrons, which are neutral particles. There are two different types of atoms in natural copper. One's nucleus contains 29 protons and 34 neutrons, whereas the other's contains 29 protons and 36 neutrons.Copper-63 (69.15 percent) and copper-65 (6.5 percent) are the two stable isotopes that make up natural copper (30.85 percent).
To learn more about Copper atoms refer:
https://brainly.com/question/16443584
#SPJ9
Hey guys, I need your help!
Calculate the percent of Lead in Lead IV oxide
Answers
The percent by mass of Lead in Lead (IV) oxide (\(PbO_2\)) is equal to 86.62%.
Scientific data:
Molar mass of Lead = 207.2 g/mol.Molar mass of oxygen = 16 g/mol.To calculate the percent by mass of Lead in Lead (IV) oxide (\(PbO_2\)):
First of all, we would calculate the molar mass of Lead (IV) oxide (\(PbO_2\));
\(PbO_2 = 207.2 + 16(2)\\ \\ \)
Lead (IV) oxide (\(PbO_2\)) = 239.2 g/mol.
How to calculate percent by mass.For the percent by mass of Lead, we would calculate it by using this formula:
\(P = \frac{Mass}{Mass\;of\;compound} \times 100\)
Substituting the parameters into the formula, we have;
\(P = \frac{207.2}{239.2} \times 100\\ \\ P=0.8662 \times 100\)
Percent mass of Lead = 86.62%
Read more on percent mass here: https://brainly.com/question/15182450
What type of reaction is this?
Answers
Cu + O2 ---> CuO2 -The first reaction is a combustion reaction
2 HCl + Mg → H2 + MgCl2- The second reaction is a Single replacement reaction
What is a combustion reaction?A combustion reaction is a type of chemical reaction that occurs between a fuel and an oxidizer in the presence of heat or light, resulting in the release of energy in the form of heat and light.
In other words, it is a reaction in which a substance reacts with oxygen to produce heat and light.
Combustion reactions are important in many aspects of daily life, including the burning of fossil fuels for energy production, the combustion of wood or other materials for heating or cooking, and the combustion of fuels in internal combustion engines.
Learn more about combustion reaction:https://brainly.com/question/30562669
#SPJ1
Consider a light beam of 579-nm unpolarized radiation
in air that is incident a sapphire crystal at an angle of
50.0" with respect to the normal. Calculate the angle
of refraction, the reflectance for each polarization
component, and the total reflectance.
Answers
Light of beam of wavelenght 579-nm unpolarized radiation in air which is incident a sapphire crystal at an angle of 50 degree with respect to the normal . Hence r = 25.7°
What is Unpolarized Light?Natural light, such as most other common sources of visible light which is incoherent. The radiation is produced independently through a large number of atoms or molecules, without any relation emissions and relatively random polarization.Then the light is said to be unpolarized light.While there is a definite path of the electric and magnetic fields throughout any given moment at one spot, this term means that polarization changes so rapidly with time such that it cannot be determined or used to guess the results of an experiment.Unpolarized light is a combination of two different and oppositely polarized currents, one half the intensity of the other.Now,
Given that:
wavelength of light = 579nm
i = 50.0"
Now,
i=50.0 degree
n₁ = 1 (air)
n₂ = speed of light in vacuum / speed in medium
=(3×10⁸)/(1.696×10⁸)
= 1.769
Now use:
n₁×sin i = n₂×sin r
1'sin 50= 1.769×sin r
r = 25.7°
Thus, from the above conclusion we can say that, light beam of 579-nm unpolarized radiation in air that is incident a sapphire crystal at an angle of 50.0" with respect to the normal . Hence r = 25.7°
Learn more about Unpolarized Light here: https://brainly.com/question/14457764
#SPJ1
Note : The question is incomplete in the portal. Here is the complete question.
Question : Consider a light beam of 579-nm unpolarized radiation
in air that is incident a sapphire crystal at an angle of
50 degree with respect to the normal. Calculate the angle of Refraction if the velocity of propagation in Sapphire is 1.696×10⁸ m/s.
What is true about the properties of liquids and gases?
Gas particles are much more densely packed than liquid particles.
The crystal lattice structure of liquids is more defined than in gases.
Liquids form amorphous crystals while gases do not.
There are strong intermolecular forces between particles that make up liquids, but not gases.
Answers
Answer:
There are strong intermolecular forces between particles that make up liquids, but not gases.
Explanation:
Solids, liquids and gases are the three states of matter that exists. However, they possess varying properties that distinguishes them from one another. One of these properties is the strength of the intermolecular forces that hold their molecules together.
The intermolecular forces of each state of matter becomes weak in this order: solid>liquid>gas.
- Intermolecular forces in solid molecules are very strong, hence making them compact and well attached to each other.
- Intermolecular forces in liquid molecules are not too strong, hence, cannot exist in a fixed position but tend to flow.
- Intermolecular forces in gaseous molecules are very weak, hence, gases can move easily and rapidly in any given space.
Why is knowing the concentration of solutions important in the real world? Give an example to help you explain your answer.
Answers
Explanation: The concentration of a solution helps us to determine the collision speed between particles in a molecule or compound. Knowing the concentrations of components in solutions can help determine the health of the world.
You are conducting a kinetics experiment to find the rate law of a reaction.
You add the following amounts to a test tube. What is the concentration of the Oxalic
Acid?
.
• 6.00 mL of 0.525 M Oxalic Acid
. 4.00 mL of distilled water
2.00 mL of 0.200 M KMnO4
Answers
The concentration of Oxalic Acid is 0.2625 M.
A kinetic experiment is conducted to determine the rate law of a reaction. The concentration of Oxalic Acid can be calculated using the given amount of the reactants and the volume of the test tube. A balanced chemical equation can be used to find the stoichiometric ratio of the reactants in the given reaction.The balanced chemical equation for the reaction is:5 H2C2O4 + 2 KMnO4 + 3 H2SO4 → 10 CO2 + 2 MnSO4 + 8 H2OThe stoichiometric ratio between Oxalic Acid and Potassium Permanganate is 5:2. The Oxalic Acid is the limiting reactant, and Potassium Permanganate is in excess.The amount of Oxalic Acid in the solution can be calculated using the formula:molarity = moles of solute / volume of solution in L.The moles of Oxalic Acid can be calculated using the formula:moles of H2C2O4 = Molarity of H2C2O4 x Volume of H2C2O4 in L= 0.525 M x 0.006 L= 0.00315 moles.
The volume of the solution after the addition of the reactants is:6.00 mL of 0.525 M Oxalic Acid + 4.00 mL of distilled water + 2.00 mL of 0.200 M KMnO4= 12.00 mLThe concentration of Oxalic Acid in the solution can be calculated using the formula:Molarity of H2C2O4 = moles of H2C2O4 / volume of solution in L= 0.00315 moles / 0.012 L= 0.2625 M.
for such more questions on Acid
https://brainly.com/question/27915098
#SPJ8