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A 2.1782.178 g sample of a solid mixture containing only potassium carbonate (MM=138.2058 g/mol) and potassium...

A 2.1782.178 g sample of a solid mixture containing only potassium carbonate (MM=138.2058 g/mol) and potassium bicarbonate (MM=100.1154 g/mol) is dissolved in distilled water. A volume of 35.59 of a 0.763 M HCl standard solution is required to titrate the mixture to a bromocresol green end point. Calculate the weight percent of potassium carbonate and potassium bicarbonate in the mixture.

K2CO3:________________________

KHCO3:__________________________

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Answer #1

weight percent of KHCO3 in the mixture = 44.72% (approx)

weight percent of K2CO3 in the mixture = 55.28 % (approx)

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