A current of 0.80 A was applied to an electrolytic cell containing molten CdCl2 for 2.5 hours. Calculate the mass (in grams) of cadmium metal deposited. [Enter only numbers in the blank.]

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  1. 0.8 amp x 2.5 hours x (60 min/hr) x (60 s/min) = about 7200 Coulombs.
    96,485 C will deposit one equivalent of Cd metal which is 112.41/2 = 56.2 g.
    Cd deposited must be 56.2 g x (7200 C/96,485 C) = ?? g

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  2. 4.2

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  3. three consecutive positive integers a,b and c are such that b2 = 4(a+c). find the value c

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  4. 8.39g

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