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Problem- Calculate the molarity (M) of Ca2+ in a solution prepared by adding 4000 mL of 0.800 M Ca(NO3)2 and 0.250 L of 0.100 M Ca(NO3)2 . Assume volumes are additive.

Molar Mass (g/mol)

Ca(NO3)2 164.09

Ca2+ 40.078

NO3- 62.004

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