PhysicsEasy226×since 2002Q6409The electrochemical equivalent of a metal is 3.35109−7{3.35109^{ - 7}}3.35109−7 kgkgkg per Coulomb. The mass of the metal liberated at the cathode when a 3A3A3A current is passed for 222 seconds will beA6.6×1057/kg6.6 \times {10^{57}}/kg6.6×1057/kgB9.9×10−7 kg9.9 \times {10^{ - 7}}\,kg9.9×10−7kgC19.8×10−7 kg19.8 \times {10^{ - 7}}\,kg19.8×10−7kgD1.1×10−7 kg1.1 \times {10^{ - 7}}\,kg1.1×10−7kgCheck answerSkip