Calculate the number of moles of CuSO4 contained in 100 mL of 1 M CuSO4 solution. Also, find the number of SO4 -2 ions in it.

Asked by  | 24th May, 2013, 12:30: AM

Expert Answer:

1 M CUSO4 solution means 1 mole of CuSO4 in 1 liter of solution.

(1 liter = 1000 ml)

Therefore,  100 ml of 1 M CUSO4 solution contains 0.1 mole of CuSO4 in 100 ml of solution.



1 mole of CuSO4 contains 1 mole of SO4-2 ions and 1 mole of Cu2+ ions.

So,  100 ml of 1 M CuSO4 solution contains 0.1 mole of SO4-2 ions in 100 ml of solution.

1 mole of ion = 6.02 x 1023 ions

0.1 moles  x 6.02 x 1023 ions per mole = 6.02 x 1022 ions

100 ml of 1 M CuSO4 solution contains 6.02 x 1022 sulphate ions.

Answered by  | 24th May, 2013, 09:56: AM

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