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A 2.250×10−2 M solution of NaCl in water is at 20.0∘C. The sample was created by dissolving...

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Chemistry

A 2.250×10−2M solution of NaCl in water is at 20.0∘C. Thesample was created by dissolving a sample of NaCl in water and thenbringing the volume up to 1.000 L. It was determined that thevolume of water needed to do this was 999.4 mL . The density ofwater at 20.0∘C is 0.9982 g/mL.

A. Calculate the molality of the salt solution.

Express your answer to four significant figures andinclude the appropriate units.

B. Calculate the mole fraction of salt in this solution.

Express the mole fraction to four significantfigures.

C. Calculate the concentration of the salt solution in percentby mass.

Express your answer to four significant figures andinclude the appropriate units.

D. Calculate theconcentration of the salt solution in parts per million.

Express your answer as an integer to four significantfigures and include the appropriate units.

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