The Keq for the conversion of A to B is 1.15 x 10^-3. the Keq for the hydrolysis of ATP to Pi and ADP is 2.24 x 10⁵. the net conversion of A to B cannot take place if the molar ratio of B to A is greater than or equal to 1.15 x 10^-3. However, A can be converted to B if the reaction is coupled to the hydrolysis of ATP. Please explain and show any work!

A 49.96 mL sample containing La³⁺ was treated with sodium oxalate to precipitate La₂(C₂O₄)₃, which was washed, dissolved in acid, and titrated with 18.04 mL of 0.006363 MKMnO₄. Calculate the molarity of La³⁺ in the unknown.
(Hint: the reaction involved in the titration was: permanganate ion(s) + oxalate (ions) -----> manganese(II) ions + carbon dioxide. The reaction occurred in acidic aqueous solution)

1. How many grams of ethanol, C2H5OH, can be boiled with 863.7 kJ of heat energy? The molar heat of vaporization of ethanol is 38.6 kJ/mol. Answer in g.

2. How much heat energy is required to boil 12.7 g of ammonia, NH3? The molar heat of vaporization of ammonia is 23.4kJ/mol. Answer in kJ

Part A Identify the nuclide produced when neptunium-237 decays by alpha emission: 237/93Np→4/2He + ? Express your answer as an isotope using prescripts.

Part B Identify the nuclide produced when phosphorus-32 decays by beta emission: 32/15P→ 0/−1e + ? Express your answer as an isotope using prescripts.

Part C Identify the nuclide produced when fluorine-18 decays by positron emission: 18/9F→0/1e + ? Express your answer as an isotope using prescripts.

Part D Identify the nuclide produced when thallium-201 decays by electron capture: 201/81T l+ 0/−1e→0/0γ + ?

In an experiment to study the reactivity of Sn(s), Ga(s), Be(s), and Pd(s), the following reactions were observed:

2 Ga(s) + 3 Sn²⁺(aq) -> 3 Sn(s) + 2 Ga³⁺(aq)

Ga(s) + Be²⁺(aq) -> (No evidence of reaction)

Sn(s) + Pd²⁺(aq) -> Pd(s) + Sn²⁺(aq)

Then the question lists all of the metals and their respective ions:

1. Sn(s) 2. Ga(s) 3. Be(s) 4. Pd(s) 5. Ga³⁺(aq) 6. Sn²⁺(aq) 7. Be²⁺(aq) 8. Pd²⁺(aq)

So I need to list out the following:

The oxidizing agents from strongest to weakest

The reducing agents from strongest to weakest

I have tried to answer this question using my provided "Table of Selected Standard Electrode Potentials", however, I can only find one metal and its respective ions, Se, in the table.

Would someone be able to explain how I can answer this question when the aforementioned substances aren't on the table? It would be greatly appreciated.

Write a net ionic equation for the reaction that occurs when manganese(II) sulfide and excess hydrochloric acid (aq) are combined.

Q: Blood Lactate Levels during Vigorous Exercise. The concentrations of lactate in blood plasma before, during, and after a 400 m sprint are shown in the flowing graph.

a. What causes the rapid rise in lactate concentration?

b. What causes the decline in lactate concentration after completion of the sprint? Why does the decline occur more slowly than the increase?

c. Why is the concentration of lactate not zero during the resting state?

Calculate ΔGº at 25ºC for the reaction H2 + I2 D 2HI. Starting with 1.0 atm H2 and 1.0 atm I2, What is ΔG when: 0.1%, 1%, 10%, 50%, 90%, 99%, and 99.9% has reacted.

How is NMR techniques better than IR? please provide detailed pros and cons.

Many thanks

For ethane, P_c = 48.2 atm and Tc = 305.4 K. Calculate the pressure exerted by 50.0 g of C₂H₆ in a 200-cm³ vessel at 37.5°C.

(c) the Redlich–Kwong equation; (d) the virial equation, given that for ethane B = -179 cm³/mol and C = 10400 cm⁶/mol² at 30°C, and B = -157 cm³/mol and C = 9650 cm⁶/mol² at 50°C.

(c) P = ? atm

(d) P = ? atm

How much heat in kilojoules is required to warm 10.0 g of ice, initially at -20.0 ∘C, to steam at 105 ∘C. The heat capacity of ice is 2.09 J/g∘C and that of steam is 1.84 J/g∘C.

Need help solving it.

I got 30.603, but I do not if it is right.

Use the density and molecular weight of limonene, linalool, and nonane to calculate the volumes of the compounds you will need to make the stock solution of 50 nM. Also calculate the final concentration of those solutions after dilution.

Nonane: d = 0.718 g/mL, MW = 128.26, 99% pure

Limonene: d = 0.84 g/mL, MW = 136.24, 96% pure

Linalool: d = 0.861 g/mL, MW = 154.25, 97% pure.

1. Why does E. coli need both DNA polymerase III and DNA polymerase I?

a. The DNA replication is bidirectional; one polymerase is used for each direction.

b. Each polymerase is specific for only one strand of DNA. DNA polymerase III acts only on the leading strand, and DNA polymerase I acts only on the lagging strand.

c. Only DNA polymerase I has proofreading ability.

d. DNA polymerase III lacks the 5' → 3' exonuclease activity needed to remove RNA primers.

2. The replication of DNA is ________ because ________.

a. semiconservative; one strand of parental DNA is retained in each daughter DNA.

b. semiconservative; each daughter molecule has two new strands copied from the parental DNA template

c. conservative; each daughter molecule has two new strands copied from the parental DNA template.

d. conservative; one strand of parental DNA is retained in each daughter DNA.

3. Active transport proteins in biological membranes are

a. always transporting Ca2+ ions.

b. never driven by concentration gradients.

c. never driven by ATP to ADP conversion.

d. sometimes driven by concentration gradients.

4. Why should it not be surprising that for many cells water requires a protein for its transport across a membrane?

a. The transport protein is needed to prevent the hydrolysis of the phospholipid chains as water crosses the membrane.

b. Water is very polar which inhibits its free diffusion across the membrane.

c. All molecules require transport proteins to cross a membrane.

d. There is never a concentration gradient for water across the membrane to drive its transport.

5. The conversion of pyruvate to lactate in muscles also causes the ________.

a. reduction of NAD+.

b. oxidation of NAD+

c. oxidation of NADH

d. reduction of oxygen to water.

6. ATP is a cosubstrate of the enzyme PFK-1. In most species ATP is also an inhibitor of PFK-1 at higher concentrations. Which statement below would provide a suitable explanation?

a. PFK-1 must be phosphorylated by ATP in the active site and the phosphorylated PFK-1 must be the less active form.

b. There are two sites on PFK-1 that bind ATP. One is the active site; the other is the regulatory site where inhibition occurs allosterically.

c. ATP actually activates the reverse of the reaction preceding the PFK-1 step in the pathway. It likely has no direct effect on PFK-1.

d. There must be another cofactor interacting with ATP at high concentrations to achieve inhibition of PFK-1.

7. Briefly describe two ways for deactivation of GPCR-signaling.

100 mL of 0.1 M NaOH solution was poured into 20 mL of 0.2 M H2SO4 solution and mixed well. What was the final pH of the mixture?

Describe how to make 500mL 0.435 M HNO3 from a 6.00M HNO3 solution. (Titration Lab)