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chemistry

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How many moles of Ca(NO3)2 are needed to make 0.250 liters of a 0.200 M Calcium nitrate solution?

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    How many mols do you need? That is M x L = ?
    Then mols = grams/molar mass. You know mols and molar mass, solve for grams. Calcium nitrate is Ca(NO3)2.

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