Categories: Chemistry WAEC

The 25°C evaporation of a 100 cm³ solution of K2CO3 to dryness gave 14g of the salt. What is the solubility of K2CO3 at 25°? [K2CO3 = 138]

A. 0.01 mol dm−3
B. 0.101 mol dm−3
C. 1.01 mol dm−3
D. 10.0 mol dm−3

Correct Answer:

Option C – 1.01 mol dm−3

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