(Answered) When a solution of chromium salt x is electrolysed chromium

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When a solution of chromium salt X is electrolysed, chromium metal is deposited on the cathode, according to the following equation.

Crⁿ⁺(aq) + ne- → Cr(s)

When a current of 1.8A was passed for 40 minutes through a solution of salt X, it was found that 0.776 g of chromium had been deposited.

Calculate the value of n in the above equation. Show your working.

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