# chemistry

Calculate the volume of 2.0 mol dm^-3 sulphuric acid,H2SO4 needed to prepare 2.5 dm^3 of 0.5 mol dm^-3 of the same acid solution.

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1. Use:
C1V1=C2V2

Measure all concentrations in mol/dm^3, and volumes in dm^3
2.0*V = 0.5*2.5
V=1.25/2=0.625 dm^3
or, approximately,
0.63 dm^3 rounded to 2 significant figures.

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posted by MathMate

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