kk10
kk10
11-06-2018
Mathematics
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Plz PLZ PLZ answer this
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sqdancefan
sqdancefan
15-06-2018
KCl has a molecular weight of 39+35 = 74 grams per mole, so 2 moles will have a mass of 148 grams.
Assuming the water has a density of 1000 grams per liter, the mass percentage of the KCl solution is 148/(1000+148) ≈ 0.12892 ≈
12.9%
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