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25.0 grams of sodium chloride are dissolved in 250 mL of water: A. What is the...

25.0 grams of sodium chloride are dissolved in 250 mL of water:

A. What is the molarity of the sodium chloride solution?

B. If 50.0 mL of the solution is then added to an additional 250 ml of water, what is the new molarity?

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