1) 12.8 g of NaCl is added to water to make 507.1 g of solution. Calculate the mass percent concentration of this solution.    2) 2.21 g of NaCl is added to water. The final volume of the solution is 328 mL. Calculate the molarity of this solution.    3) How many grams of NaCl are needed to make 1.8 L of a 0.21 M solution?

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Q: What mass of water must be added to 255.0 g NaCl to make a 15 percent by mass aqueous solution? The…

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Q: volume

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A:

Q: What is a solution? What are the solute and solvent?

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Q: defined as the amount of solute present in a solution

A:

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A:

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A: As per our guidelines we can only solve first question. Please resubmit the other questions as next…