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3.0g of a mixture of potassium carbonate and potassium chloride were dissolved in a ...

3.0g of a mixture of potassium carbonate and potassium chloride were dissolved in a 25cm3 of this solution required required 40.00cm3 of 0.1M HCl for neutralization. What is the percentage by weight of K2CO3 in the mixture. (K = 39, O = 16, C = 12)

A. 60
B. 72
C. 82
D. 89
E. 92




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