Asked by Tatiana Horace
Assuming 3.9g of the ferrous salt was dissolved in 100cm3 of distilled water, calculate it's molarity by mole concept?
Answers
Answered by
Damon
a liter is 1000 cm^3 so 39 grams of this stuff
what is molar mass of this salt?
x = 56 * n + mass of whatever your salt negative stuff is
IF the salt were FeO it would be 56*1 + 16*1 = 72 grams per mol
so your answer would be
mols in 1000 cm^3 = 39 grams * 1 mol/72 grams = 39/72
HOWEVER, you did not say what salt of iron you mean
what is molar mass of this salt?
x = 56 * n + mass of whatever your salt negative stuff is
IF the salt were FeO it would be 56*1 + 16*1 = 72 grams per mol
so your answer would be
mols in 1000 cm^3 = 39 grams * 1 mol/72 grams = 39/72
HOWEVER, you did not say what salt of iron you mean
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