一道AP化学题In the electroplating of nickel, 0.200 faraday of electrical charge is passed though a solution of NiSO4. What mass of nickel is deposited?(答案 5.87g)

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一道AP化学题In the electroplating of nickel, 0.200 faraday of electrical charge is passed though a solution of NiSO4. What mass of nickel is deposited?(答案 5.87g)

一道AP化学题In the electroplating of nickel, 0.200 faraday of electrical charge is passed though a solution of NiSO4. What mass of nickel is deposited?(答案 5.87g)
一道AP化学题
In the electroplating of nickel, 0.200 faraday of electrical charge is passed though a solution of NiSO4. What mass of nickel is deposited?
(答案 5.87g)

一道AP化学题In the electroplating of nickel, 0.200 faraday of electrical charge is passed though a solution of NiSO4. What mass of nickel is deposited?(答案 5.87g)
问题大体意思:电解法沉积Ni,当电量为 0.200 法拉第时,沉积镍的质量.
因为Ni2+ + 2e- = Ni,
根据 2 n(Ni) = 0.200 ,所以n(Ni) = 0.1 mol,
质量 m = 0.10 mol * 58.7 g/mol = 5.87 g

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