1. Determine ΔG^o for the following reaction:

2 Na(s) + 2 H₂O(l) --> H₂(g) + 2 OH^-(aq) + 2 Na⁺(aq)

2. Calculate K for the oxidation of iron by H⁺:

2 Fe(s) + 6 H⁺(aq) --> 2 Fe³⁺(aq) + 3 H₂(g)

Calculate the P values for which Br2(g) is in a corresponding state to Xe(g) at 328 K and 73.2 bar .

What is the length (in cm) of an edge of a cube of gold (density = 19.3 g/mL) which has a mass of 19.92 kg?

What is the length (in cm) of an edge of a cube of salt (density = 2.165 g/mL) which has a mass of 20.04 kg?

What is the mass (in g) of a cube of lead (density = 11.3 g/mL) with an edge length of 1.89 cm?

consider the following system at equilibrium:
SiF4 (g) + 2H2O + heat 《》SiO2 (g) + 4HF (g)

a. Is this reaction endothermic or exothermic?
b Which direction will the equilibrium shift if HF is added?
c. Which direction will the equilibrium shift if H20 is removed?
d. Which direction will the equilibrium shift if the system is heated?

The Tesla Powerpack lithium ion battery storage system has the following specifications:

Installed Capacity – 50 KW

Storage Capacity – 210 KWh

Output voltage – 480 V

Overall efficiency – 89%

1. How long (in hours) can the Powerpack deliver the rated power?

2. How much heat is generated by the Powerpack in each charge/discharge cycle?

3. What is the output current of the Powerpack (in amps) when operated at the rated power and voltage?

Assume you are performing the calibration step of Experiment 8 and you begin with 20 g of water at 20 oC and 20 g of water at 80 oC. After adding the two portions of water into your calorimeter setup and following the procedure outlined in the experiment, you determine the temperature of the mixed portions of water to be 45 oC. What is the heat capacity of the calorimeter? Assume room temperature is 25 oC.

The emission of NO2 by fossil fuel combustion can be prevented by injecting gaseous urea into the combustion mixture. The urea reduces NO (which oxidizes in air to form NO2) according to the following reaction:
2CO(NH2)2(g)+4NO(g)+O2(g)→4N2(g)+2CO2(g)+4H2O(g)
Suppose that the exhaust stream of an automobile has a flow rate of 2.56 L/s at 672 K and contains a partial pressure of NO of 13.5 torr .

a.) What total mass of urea is necessary to react completely with the NO formed during 8.2 hours of driving?

Determine the formula weight, number of molecule and number of moles

1). 1.7293 x10^16 Molecules of H2O

2). 5.699 g of BaSO4

Part A

24195Am→23793Np+_____ Express your answer in isotopic notation.

Part B

_____+0−1e→12655Cs Express your answer in isotopic notation.

Part C

23793Np→_____+42He Express your answer in isotopic notation.

Part D

21885At→_____+42He Express your answer in isotopic notation.

f 2.0 moles of octane vapor, C8H18, is reacted with 15 moles of oxygen to produce carbon dioxide and water, what are the partial pressures of all gases in the mixture at a total pressure of 1 atm?

Hello. Question:

I have absorption data collected from 5 samples of the same enzyme at different concentration. The data is collected over the interval of 3 minutes. How can I convert this into catalytic velocity?

Consider the titration of 70.0 mL of 0.0300 M CH₃NH₂ (a weak base; K_b = 0.000440) with 0.100 M HNO₃. Calculate the pH after the following volumes of titrant have been added: