Q16 of 40 Page 1

Calculate e.m.f of the following cell at 298 K:


Given:


The given chemical reaction is:


2Cr(s) + 3Fe2+ (0.1M)→ 2Cr3+ (0.01M) + 3Fe(s)


And



E°cell can be calculated as follows



E°cell = -0.44 – (-0.74) = 0.30 V




Ecell = 0.30 + 0.01 = 0.31 V


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