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a mixture contains n a h c o 3 together with unreactive components. a 1.62 g sample of the mixture reacts with h a to produce 0.561 g of c o 2 . the molar mass of n a h c o 3 is 84.01 g/mol and the molar mass of c o 2 is 44.01 g/mol . what is the percent by mass of n a h c o 3 in the original mixture?
Sagot :
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