February 27, 2017

Homework Help: chemistry

Posted by Leah on Monday, June 18, 2012 at 2:34pm.

a current is passed through 500 mL of a solution of CaI2. the following electrode reactions occur:
anode: 2I- ---> I2 + 2e-
cathode: 2H2O + 2e- ---> H2 + 2OH-

after some time, analysis of the solution shows that 35.7 mmol of I2 has been formed.

a) how many faradays of charge have passed through the solution?

b) how many coulombs?

c) what volume of dry H2 at STP has been formed?

d) what is the pH of the solution?

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