Asked by Tony

What volume of a 0.50 M MgSO4 solution will be needed to prepare 100.0 mL of a 0.20 M MgSO4 solution?
A.250 mL

B.100 mL

C.0.250 mL

D.40.0 mL

Answers

Answered by DrBob222
mols MgSO4 neded = M x L = 0.20 M x 0.100 L = 0.02 mols.

Then M MgSO4 = mols MgSO4/L MgSO4.
0.50 = 0.02/L, solve for L.
Answered by Anonymous
jjoj
Answered by Rachel
D.40.0 mL
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