A hospital saline solution is analyzed to confirm its concentration. A 50.0 mL sample with a mass

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A hospital saline solution is analyzed to confirm its concentration. A 50.0 mL sample with a mass of 50.320 g is evaporated to dryness. If the solid sodium chloride residue has a mass of 0.453 g, find

(a) The mass/mass percent concentration ,

(b) The molar concentration of the NaCl solution.

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