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mass percent of solute

What is the mass percent of solute in each of the following solutions?
a.) 155 mg NaCl/g solution
b.) 0.242 L methanol (d= 0.791 g/mL)/kg water
c.) 3.8 L ethylene glycol (d= 1.114 g/mL) in 6.5 L propylene glycol(d= 1.036 g/mL)

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Mass percent of solute = Mass of solute / total mass of solution * 100%.

(1) the solute is NaCl = 155 mg = 0.155 g.
The solution is 1 g.
so the mass percent of solute = 0.155 / 1 * 100 = 15.5%.

(2) Volume of ...

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It shows how to find the mass percent of solute in the solutions. The response has a '5/5' rating.

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