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OpenStudy (anonymous):
Calculate the mass percent of a NaCl solution in which 140g of NaCl is dissolved in 4.50L of water at 25C (density = 0.997g/mL).
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OpenStudy (jfraser):
find the mass of the water using volume and density. find the mass % by \[mass \% = \frac{mass NaCl}{mass NaCl + mass H_{2}O}\]
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