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12.0g of a mixture of potassium carbonate and potassium chloride were dissolved in a 250cm³...

12.0g of a mixture of potassium
carbonate and potassium chloride were
dissolved in a 250cm³ standard flask.
25cm³ of this solution required 40.00cm³
of 0.1M HCI for neutralization. What is the
percentage by weight of
K2CO3 in the mixture? (K = 39, O = 16, C
= 12)?

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