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How many moles of CaCl2 are in 250mL of a 3.0M of CaCl2?

Ca=40.08 -- Cl=35.45 X 2 ??

Thanks

1 answer

3.0M = 3moles/liter
You have only .250 liter
So, only .75moles of solute.

No need for atomic weights here.