30). What mass of platinum could be plated on an electrode from the electrolysis of a Pt(NO3)2 solution with a current of 0.500 A for 55.0 s? The molar mass of platinum is 195.1 g-mol-1. Q = It Q = charge in Coulomb | = current in Amps or C/s t = time F = 96470 J/.mol e- = 96470 A-s/mol e- = 96470 C/mol e- 0.0455 g 0.0278 g 0.0536 g 0.0910 g а. b. C. d.

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