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Redox and electrochemistry — Question 55

Original QCE Vault practice · 4 marks

Q55 · Practice questionSimple familiar4 marks

QUESTION 55 (4 marks)

A jewellery workshop plates copper from

C u^{2 +}

solution using 0.800 A for 20.0 min. Assume 100% current efficiency. Use

F = 96485 C m o l^{- 1}

and

M (C u) = 63.55 g m o l^{- 1}

.

a) Calculate the charge passed. [1 marks]

b) Calculate the mass of copper deposited. [3 marks]

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