MgSO4.7H2O (RMM 246.5) how many grams of MgSO4.7H2O will be in 450ml of a 1 molar solution?

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MgSO4.7H2O (RMM 246.5) how many grams of MgSO4.7H2O will be in 450ml of a 1 molar solution?

2007-10-07 03:03:21 · 2 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry

2 answers

First convert 450 mL to L. Molarity is the # of moles per L, so multiply the number of liters you have (.450L) by 1 mole/L, and you have .450 moles of magnesium sulfate heptahydrate. Now multiply by the molar mass, and you have the number of g.

2007-10-07 03:35:17 · answer #1 · answered by siciliana99 2 · 0⤊ 0⤋

It has to be 45% of 246.5 since it's 450 mls 1M
=110.925 grams [answer].

2007-10-07 10:40:20 · answer #2 · answered by BB 7 · 0⤊ 0⤋