A solution is 0.660 M in HNO₃ and 1.02 M in Ca(NO₃)₂. What is the molarity of NO₃^- in the solution? A) 2.70 M B) 1.68 M C) 1.02 M D) 0.660 M E) 0.360 M

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Quizplus · Accepted Answer

The molarity of NO3- is calculated by considering the contribution from both HNO3 and Ca(NO3)2. HNO3 contributes 0.660 M of NO3-, and Ca(NO3)2 contributes 2 x 1.02 M = 2.04 M of NO3-. Adding these gives a total of 2.70 M NO3-.

A Solution Is 0