1.)Explain why it is necessary to consider the vapor pressure of water at the te

Question

1.)Explain why it is necessary to consider the vapor pressure of water at the temperature conditions of the experiment in the calculations of the pressure of hydrogen.

2.)The electrolysis of molten NaCl was carried out by using a 7.0 volts (V) and 4.0 x 104amperes (A) of electricity. How much solid sodium (Na) and chlorine (Cl2) gas are produced in eight (8) hours?

3)When an aqueous NaCl solution is electrolyzed, how many faradays need to be transferred at the anode to release 0.150 mol of Cl2gas following the reaction at anode:

                  2Cl-(aq) --> Cl2(g) + 2e-

4.)Write a balanced ionic chemical equation for the electrolytic reduction of H+ions to H2.

5.)Calculate the number of Faradays involved for solar cell for six months when 4.00 x 10-5A is drawn.

Explanation / Answer

3)0.248743008 faradays

4) 2H+ + 2e H2

5) 40.0 x 10^-5 A x (1 Coul/s / 1 A) = 40.0 x 10^-5 C/s

40.0 x 10^-5 C/s x (3600 s / 1 hr) x (24 hr / 1 day) x (182.5 day) = 6307.2 C
6307.2 C x (1 F / 96,500 C) = 0.065359 F

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