Which formula correctly expresses concentration of a slurry by weight percent?

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Multiple Choice

Which formula correctly expresses concentration of a slurry by weight percent?

Explanation:
Weight percent shows how much of the slurry’s mass is the solid solute. It is found by taking the mass of the solute and dividing it by the total mass of the slurry (solute plus water), then multiplying by 100 to express the fraction as a percentage. This is why the correct expression is solute mass divided by total slurry mass, with a 100× factor to convert to percent. Using volume (water volume) or inverting the ratio would not reflect the proportion of mass in the mixture, so those options don’t represent weight percent.

Weight percent shows how much of the slurry’s mass is the solid solute. It is found by taking the mass of the solute and dividing it by the total mass of the slurry (solute plus water), then multiplying by 100 to express the fraction as a percentage. This is why the correct expression is solute mass divided by total slurry mass, with a 100× factor to convert to percent. Using volume (water volume) or inverting the ratio would not reflect the proportion of mass in the mixture, so those options don’t represent weight percent.

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