You purify a protein (alcohol dehydrogenase) from a biological sample containing a
second protein catalase. The following properties are measured. For catalase: S=1.11x10-13 s, D (m2/s) =4.11 x10-11 and V (cm3/gm)=0.715, while for alcohol dehydrogenase :
S=4.88x10-13 s, D (m2/s) =6.5 x10-11 and V (cm3/s)=0.751
You have a centrifuge that can provide angular velocities of up to 35,000 rpm.
Determine the time it will take for the centrifuge until at 3 cm displacement of the
boundary layer occurs relative to the initial 4 cm location of the boundary layer
relative to the centrifuge axis.

V₂O₅ (s) + 2H₂ (g) → V₂O₃ (s) + 2H₂O(l) is the balanced chemical equation for the reaction of solid vanadium(V) oxide with hydrogen gas to form solid vanadium(III) oxide and liquid water.

The balanced chemical equation is the equation in which the number of atoms on the reactant side is equal to the number of atoms on the product side in an equation.

The word based equation is

Vanadium(V) oxide + Hydrogen gas → Vanadium (III) oxide + Water

Now write the chemical equation

V₂O₅ (s) + 2H₂ (g) → V₂O₃ (s) + 2H₂O(l)

Reactant side                Product side

V = 2                                V = 2

O = 5                                O = 5

H = 4                                 H = 4

We can see that the number of atoms on reactant side is equal to the number of atoms on product side. So the given equation is balanced.

Thus from the above conclusion we can say that V₂O₅ (s) + 2H₂ (g) → V₂O₃ (s) + 2H₂O(l) is the balanced chemical equation for the reaction of solid vanadium(V) oxide with hydrogen gas to form solid vanadium(III) oxide and liquid water.

Learn more about the Balanced chemical equation here: https://brainly.com/question/15355912

#SPJ4

Answer: Its not popping up for me *-*?

Answer: a)Complete ionic equation:

2NH₄⁺ + S²⁻ + Fe²⁺ + SO₄²⁻ → 2NH₄⁺ + SO₄²⁻ + FeS

Net ionic equation:

Fe²⁺ + S²⁻ → FeS

b) Complete ionic equation:

2Na⁺ + SO₃²⁻ + Ca²⁺ + 2Cl⁻ → 2Na⁺ + 2Cl⁻ + CaSO₃

Net ionic equation:

SO₃²⁻ + Ca²⁺ → CaSO₃

c) Complete ionic equation:

Cu²⁺ + SO₄²⁻ + Ba²⁺ + 2Cl⁻ → Cu²⁺ + 2Cl⁻ + BaSO₄

Net ionic equation:

Ba²⁺ + SO₄²⁻ → BaSO₄

Explanation:

(a) Balanced formula equation:

(NH₄)₂S + FeSO₄ → (NH₄)₂SO₄ + FeS

Complete ionic equation:

2NH₄⁺ + S²⁻ + Fe²⁺ + SO₄²⁻ → 2NH₄⁺ + SO₄²⁻ + FeS

Net ionic equation:

Fe²⁺ + S²⁻ → FeS

(b) Balanced formula equation:

Na₂SO₃ + CaCl₂ → NaCl + CaSO₃

Complete ionic equation:

2Na⁺ + SO₃²⁻ + Ca²⁺ + 2Cl⁻ → 2Na⁺ + 2Cl⁻ + CaSO₃

Net ionic equation:

SO₃²⁻ + Ca²⁺ → CaSO₃

(c) Balanced formula equation:

CuSO₄ + BaCl₂ → CuCl₂ + BaSO₄

Complete ionic equation:

Cu²⁺ + SO₄²⁻ + Ba²⁺ + 2Cl⁻ → Cu²⁺ + 2Cl⁻ + BaSO₄

Net ionic equation:

Ba²⁺ + SO₄²⁻ → BaSO₄

Answer:

mild

Explanation:

Answer:

B

Explanation:

Remember the formula;

density = mass/volume

If the mass are same but the volume is different. So the density also different

Two objects have the same mass, but one object occupies a smaller volume than the other because the two objects have different densities. Thus, option B is true.

“Density is defined as a mass of a unit volume of a material.”

Density can be expressed as:

d = m/v

Where m = mass and v = volume

Density is commonly expressed as gram per cubic centimeter.

Mass is a measure of the amount of matter that an object contains. Volume is the amount of space occupied by the substance or object.

Density is directly proportional to mass and inversely proportional to volume. Thus, with an increase in density, mass increases and volume decreases, and vice-versa.

The two objects have the same mass, but one object occupies a smaller volume than the other because the two objects have different densities. Thus, option B is true.

To learn more about density, refer to the below link:

https://brainly.com/question/15072957

#SPJ2

Answer:

Kinetic energy is transferred from the leg to the ball

Explanation:

Before kicking the ball, you'll need to run to where the position of the ball is which implies that your leg is not at rest, immediately you kick the ball, you will be transferring the kinetic energy of your leg to the ball.

According to the collision theory, the following criteria must be met in order for a chemical reaction to occur: Molecules must collide with sufficient energy, known as the activation energy, so that chemical bonds can break.

Could I have branliest, heart with 5 stars

Thanks and have a happy Christmas

Collision theory expresses that substance responses (in the gas stage) happen because of crashes between reactants.

To really start a reaction, impacts should be adequately lively (dynamic energy) to break compound bonds; this energy is known as the Activation energy. As the temperature rises, atoms move quicker and impact all the more energetically, significantly improving the probability of bond breakage upon crash.

Find more information about Activation energy here:

brainly.com/question/1380484

Answer:

Potassium (K)

Explanation:

Out of the four options, Potassium is the only one to fill a total of 4 energy levels.

Both Cesium (Cs) and Rubidium (Rb) fill more than three energy levels, with Cesium filling 6 and Rubidium filling 5.

Sodium (Na) only fills 3 energy levels.

Thus, that leaves Potassium (K), which has 4 energy levels.

Hope this helped ^-^

Answer:

New cells arise from existing cells.

Explanation:

According to the cell theory, "all living things are composed of one or more cells; the cell is the basic unit of life; and new cells arise from existing cells"(Lumen Learning).

Cells are the basic unit of life. Some organisms consists of only one cell while other organisms have many cells and are called multicellular organisms.

In multicellular organisms, new cells are formed by the division of preexisting cells.

formed from the electrostatic attraction between oppositely charged ions in a chemical compound.

The expected product is (R)-2-bromobutane.

Stereochemistry plays a crucial role in determining the outcome of chemical reactions. In the given question, the stereochemistry of the intermediate I needs to be considered to determine the expected product.

The intermediate I indicates a chiral carbon center, denoted by an asterisk (*), which means it has four different substituents attached to it. This chiral carbon results in two possible stereoisomers: (R)-2-bromobutane and (S)-2-bromobutane.

When a reaction occurs at a chiral carbon, the stereochemistry of the reactant is usually retained in the product, assuming no racemization or inversion takes place during the reaction. In this case, the intermediate I has an (R) configuration, which implies that the product will also have an (R) configuration.

Therefore, the expected product is (R)-2-bromobutane.

Learn more about (R)-2-bromobutane.

brainly.com/question/17031230

#SPJ11

Answer:

yesss again dobu wanta ti play online

Answer:

Mitochondria

Explanation:

Glucose in an energy molecule contained in carbohydrate food substances. The end product of the digestion of carbohydrate is glucose which is broken down to produce energy.

The sequence of breakdown of glucose is as follows; In the first step, 6-carbon glucose is broken down into two molecules of  3-carbon pyruvic acid. This occurs in the cytoplasm of the cell. It is an anaerobic process.

In the second step which occurs in the mitochondrion, each of the molecules of pyruvic acid is now oxidized to carbon dioxide and water and energy is produced in the process.

When a polypeptide is being assembled, the bond that forms between a newly added amino acid and the previous amino acid in the chain is a peptide bond.

During protein synthesis, amino acids are linked together to form a polypeptide chain. The bond that forms between the carboxyl group of one amino acid and the amino group of another amino acid is called a peptide bond. This bond is formed through a dehydration synthesis reaction, also known as a condensation reaction.

In a dehydration synthesis reaction, a water molecule is removed as the peptide bond forms between the amino acids. The carboxyl group of one amino acid reacts with the amino group of another amino acid, resulting in the formation of a peptide bond and the release of a water molecule.

The peptide bond is a covalent bond and it forms a strong linkage between the adjacent amino acids in the polypeptide chain. It is responsible for the linear arrangement of amino acids in proteins. The amino acid sequence, determined by the order of peptide bonds, plays a crucial role in determining the protein's structure and function.

In summary, the bond that forms between a newly added amino acid and the previous amino acid in a polypeptide chain is a peptide bond, which is formed through a dehydration synthesis reaction.

Learn more about peptide bond here:

https://brainly.com/question/32085571

#SPJ11

Answer:

Falso

Explanation:

La electrólisis es la descomposición de una solución cuando la corriente continua se pasa a través de ella.

La corriente entra y abandona el electrolito a través de los electrodos. El electrodo positivo se llama el ánodo mientras el electrodo negativo se llama cátodo.

Los iones positivos se mueven hacia el cátodo, mientras que los iones negativos se mueven hacia el ánodo.

Dado que el cloruro es un ion negativo, se mueve hacia el ánodo y no hacia el cátodo.

GPS uses satellite signals to determine an accurate position, while INS utilizes motion sensors and rotation sensors to calculate an object's position, velocity, and orientation.

GPS/INS guided munitions combine the strengths of Global Positioning System (GPS) and Inertial Navigation System (INS) technologies to enhance precision and reliability in hitting targets.

The accuracy of GPS/INS guided munitions depends on several factors, including the quality of the GPS signals, the performance of the INS sensors, and the integration of both systems. Typically, these munitions can achieve a Circular Error Probable (CEP) of less than 10 meters. CEP is a measure of accuracy where 50% of the shots will fall within the stated radius of the target.

Modern GPS/INS guided munitions, such as Joint Direct Attack Munition (JDAM) and Excalibur, have demonstrated CEPs as low as 1 to 3 meters. These high levels of accuracy reduce the likelihood of collateral damage and improve the effectiveness of military operations.

In summary, GPS/INS guided munitions can be expected to strike their targets within a range of 1 to 10 meters, depending on the quality of the components and integration. This accuracy significantly improves the effectiveness of the munitions, reducing collateral damage and contributing to more precise and efficient military operations.

For more such questions on GPS.

https://brainly.com/question/1823807#

#SPJ11

Answer:

True

Explanation:

The endocrine system's main function is to distribute hormones throughout the body.

hope this helps, brainliest appreciated!

As we go down, it leads to weaker metallic bonding between the atoms. Weaker metallic bonding results in a lower melting point because it is easier to break the bonds between the atoms.

The melting point of a metal is inversely related to its atomic radius, i.e., as the atomic radius increases, the melting point decreases.

K belongs to Group 1 and Ba belongs to Group 2. As we go down these groups, the melting point decreases. Therefore, K will have a lower melting point than Na and Li, which are the elements above it in the group. The melting point of Na is about 370 K, and the melting point of Li is about 453 K. Therefore, the melting point of K is likely to be in the range of 336-370 K. Similarly, Ba will have a lower melting point than Ca and Mg, which are the elements above it in the group. The melting point of Ca is about 1115 K, and the melting point of Mg is about 923 K. Therefore, the melting point of Ba is likely to be in the range of 700-1115 K.

As we go from left to right in the fourth and fifth periods of the periodic table, the melting point generally increases. This is because the number of valence electrons increases, which leads to stronger metallic bonding and higher melting points.

Cd belongs to Group 12, V belongs to Group 5, and Co belongs to Group 9. As we go down Group 12, the melting point decreases, so Cd is likely to have a lower melting point than Zn, which is the element above it in the group. The melting point of Zn is about 693 K. Therefore, the melting point of Cd is likely to be in the range of 594-693 K. As we go from left to right in Group 5, the melting point generally increases. Therefore, V is likely to have a higher melting point than Ti, which is the element to its left. The melting point of Ti is about 1941 K. Therefore, the melting point of V is likely to be in the range of 1941-2183 K. As we go from left to right in Group 9, the melting point generally increases. Therefore, Co is likely to have a higher melting point than Ni, which is the element to its left. The melting point of Ni is about 1728 K. Therefore, the melting point of Co is likely to be in the range of 1728-1768 K.

To learn more about melting points please visit-
https://brainly.com/question/29578567
#SPJ1

Answer:

Independent variable- nature of irrigation water

Dependent variable- height of the plants

Explanation:

In every study, there must be an independent and a dependent variable. The dependent variable changes its value as the value of the independent variable changes.

When the nature of irrigation water is manipulated, the height of the plant changes accordingly. This implies that the nature of irrigation water (microwaved or tap water) is the independent variable while the height of the plant (the response) is the dependent variable.

Density of a substance is the ratio of its mass to volume. Specific gravity of the substance is the ratio of its own density to the density of water. Thus, dividing its density by density of water.

Specific gravity of an object is the ratio of its density to the density of water. In fact it is related to the gravity itself in water. This ratio determines whether the object float or sink to the bottom of water.

If the specific gravity is greater than one, which means the object is denser than water and it will sink to the bottom of water because of its weight. If the specific gravity is less than one, then the object have less density than water and it will float on water.

All the floating objects have a specific gravity of less than one. Irrespective of the weight of the objects they floats because of their higher density than water.

Ice floats on water where a stone will sink. Similarly large ships, canoes etc are floating because of their smaller specific gravity. This way we can compare the floating property using specific gravity.

Therefore, specific gravity of a substance can be found by dividing its density by the density of water.

To find more about specific gravity, refer the link below:

https://brainly.com/question/8808140

#SPJ1

The partial pressure of hydrogen and helium is approximately 12 atm and 6 atm respectively.

According to Dalton's Law of pressures

The partial pressure exerted by a gas is the same as the pressure it would exert if it alone existed in the container. So the total pressure in the 1 litre container is the sum of the pressure exerted by helium and hydrogen individually

We know the ideal gas equation is

\(P \ V = N\ R \ T\)

\(P=\frac{NRT}{V}\)

molar mass of hydrogen = 2.016 gm

molar mass of hydrogen = 4.0 gm

R=0.0821

T= 300K

V= 1litre

no. of moles =\(\frac{given mass}{molar mass}\)

We can get individual partial pressures through this formula

\(P_{H2} = \frac{2.016 \ 0.0821 \ 300}{1}\)

      = 12 atm

\(P_{He2} = \frac{4.0 \ 0.0821 \ 300}{1}\)

      = 6 atm

Learn more about Partial pressure

brainly.com/question/13199169

#SPJ4

Answer:

0.020g de sulfato de plomo se requieren

La concentración de la solución diluida es de 3ppm

Explanation:

Las partes por millón (ppm) son definidas como:

miligramos soluto / 1L solución.

Si deseas preparar una solución a 100ppm de sulfato de plomo (II) necesitas 100mg de este sulfato en 1L. En 200mL = 0.200L vas a necesitar:

0.200L × (100mg / 1L) = 20mg de sulfato de plomo (II).

Como 1000mg = 1g,

20mg × (1g / 1000mg) = 0.020g de sulfato de plomo se requieren.

Ahora, se van a tomar 30mL de esta solución y se diluirán a 1000mL. Se diluye la solución:

1000mL / 30mL = 33.33 veces.

Como la solución inicial es de 100ppm, esta dilución genera una solución de concentración:

100ppm / 33.33 = 3ppm

The volume needed to make 1.98 M of the solution is 2.12L

Molarity of a given solution is defined as the total number of moles of solute per litre of solution. One molar is the molarity of a solution where one gram of solute is dissolved in a litre of solution. As we know, in a solution, the solvent and solute blend to form a solution, hence, the total volume of the solution is taken.

Given,

Molarity = 1.98m

Moles = 4.2 mol

Molarity = number of moles of solute / volume of solution in L

Volume = moles / molarity

= 4.2 / 1.98

= 2.12 L

Learn more about Molarity, here:

https://brainly.com/question/8732513

#SPJ1

Yes, a perfectly insulated calorimeter would keep all the heat in.

The final temperature would depend on the initial temperatures of the substances being measured.A perfectly insulated calorimeter can be defined as a device used for measuring the heat absorbed or released by a substance during a physical or chemical process.

It consists of a container and a thermometer. A calorimeter is said to be perfectly insulated when it can prevent heat exchange between the substances being measured and their environment.When a calorimeter is perfectly insulated, no heat exchange occurs between the contents of the calorimeter and the surroundings.

As a result, all the heat generated or absorbed is trapped inside the calorimeter. The final temperature in the calorimeter would depend on the initial temperatures of the substances being measured.

In conclusion, a perfectly insulated calorimeter would keep all the heat in, and the final temperature would depend on the initial temperatures of the substances being measured.

To know more about calorimeter  click on below link:

https://brainly.com/question/4802333#

#SPJ11

Answer:

5.5 × 10²² formula units Al₂O₃

General Formulas and Concepts:

Chemistry - Stoichiometry

Explanation:

Step 1: Define

9.3 g Al₂O₃

Step 2: Define conversions

Avogadro's Number

Molar Mass of Al - 26.98 g/mol

Molar Mass of O - 16.00 g/mol

Molar Mass of Al₂O₃ - 2(26.98) + 3(16.00) = 101.96 g/mol

Step 3: Convert

\(9.3 \ g \ Al_2O_3(\frac{1 \ mol \ Al_2O_3}{101.96 \ g \ Al_2O_3} )(\frac{6.022 \cdot 10^{23} \ formula \ units \ Al_2O_3}{1 \ mol \ Al_2O_3} )\) = 5.4928 × 10²² formula units Al₂O₃

Step 4: Check

We are given 2 sig figs. Follow sig fig rules.

5.4928 × 10²² formula units Al₂O₃ ≈ 5.5 × 10²² formula units Al₂O₃

An ambidentate ligand is a type of ligand that can bond through two different atoms or groups in the same molecule.

An ambidentate ligand is a ligand that can bind to a central metal atom/ion through two different donor atoms present within the same molecule, but only one donor atom can bind at a time. This means that it can bond to a metal ion through either of these two atoms or groups. Two examples of ambidentate ligands, other than NO2, are:

1. SCN- (thiocyanate): This ligand can bind to the metal through either the sulfur (S) or the nitrogen (N) atom.
2. OCN- (cyanate): This ligand can bind to the metal through either the oxygen (O) or the nitrogen (N) atom.

To know more about Ligands:

https://brainly.com/question/13151575

#SPJ11

\(mass \: of \: the \: car \: = 1250 \: kg \\ \\ velocity \: of \: the \: car \: is \: = 2.3m/s \\ \\ formula \: to calculate \: momentum \: \\ \\ \: \: \: \: p = mv \: \: \: (m = mass \: and \: v = velocity) \\ \\ momentum \: = 1250 \times 2.3 = 2875m/s\)

Answer:

The rocks contain iron that points in the direction the rocks move away from the ridge.

Answer:

It's take 1 and a half hours

Explanation:

Ugbdunvisrtg