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Question About Electrolysis

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By the electrolysis of water, 11.2L of oxygen at STP was prepared.

a) What charge was required?
b) If a current of 0.5A was used, how long would it take?

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Solution Summary

The solution involves a calculation of the charge (number of electrons) needed for a half reaction in electrolysis. Additionally, the time of reaction is calculated given a value of the current used.

Solution Preview

Standard temperature and pressure means 1 mole of gas = 22.4 L, so here we are producing 0.5 moles. What we really need to know however is how many moles of electrons are needed to produce 0.5 moles ...

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