Question

Electroplating It takes 100.9 s for a 1.83-A current to plate 0.1866 g of a metallic element from a solution containing M2+ ions. What is the element (M)? Answer with the chemical symbol for the element.

Please show all work step by step and final answer.

Answer 1

m=eq mt mass of the metal deposited et electro Chemical equivalent of the metal e- q is atomic weight Charge x 96500 colounds the amount of voltage q= ixt the current passed for a time t through the i is metal

m=eq. 2 0 = m ixt e = 0.18669 1.83 AX 100-15 atomric mass e= 0.00101057694 = (harge X 96500 atomic mass = 0.00101057694 2 x 96500 atomic mass = 195.04134942 9 Prost. The element is pt (Platinum).