When 1.95 grams of Co(NO3)2 is dissolved in 0.250 L of 0.220 M KOH, what are...

Question

Question

When 1.95 grams of Co(NO3)2 is dissolved in 0.250 L of 0.220 M KOH, what are the [Co 2+], [Co(OH)4 2-], and [OH-] if Kf of Co(OH)4 2- = 5.00x10^9?

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Answer 1

Answer #1

Molar mass of Co(NOJ2 is 1 82.94 g/mol. So, 1.95 g of Cobalt Nitrate contains (1.95/182.94) mol= 0.0107 mol Volume of the sol

Answer 2

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