# Intro Chemistry

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_______g of MnSO4 H2O are needed to prepare a solution of 100.00mL of 0.100 M MnSO4.

Thank You

• Intro Chemistry -

tried using M1V1=M2V2 but without sucess

• Intro Chemistry -

You want 100 mL of 0.100 M MnSO4.H2O. How many moles is that? M x L = moles.
How many grams is that? moles = grams/molar mass.

• Intro Chemistry -

oh thanks I get it now..

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