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how much will you weigh to get 10 g of Na2S from a Na2S・9H20 stock?

the hydrate is used as is. no heating is inovolved.

2007-07-10 18:10:13 · 1 answers · asked by amino 4 in Science & Mathematics ➔ Chemistry

1 answers

x/(2*23 + 32 + 9*18) = 10/(2*23+32)
x = 10*240/78
x = 30.769 g

2007-07-10 18:23:19 · answer #1 · answered by Helmut 7 · 0⤊ 0⤋

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