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Molarity of Solutions

What is the molarity of nitrate (NO3-) in a solution that was made by adding 54.3 g NaNO3 and 43.5 g of Ca(NO3)2 into 560 mL of water?

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In order to find the final molarity, we need to first find the total number of moles of NO3- from each source, combine them, then divide by the total volume.

Finding moles of nitrates will be by ...