50cm 3 of a saturated solution of potassium trioxonitrate (V)at 40°C contains 5.05g of the...

WAEC 1989

50cm 3 of a saturated solution of potassium trioxonitrate (V)at 40°C contains 5.05g of the salt. What is the solubility of potassium trioxonitrate (V) at 40°C? (KNO3 = 101)

A. 1.0 mol dm^-3
B. 1.5 mol dm^-3
C. 2.0 mol dm^-3
D. 2.5mol dm^-3
E. 5.0mol dm^-3

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Correct Answer: Option A

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