Verified answer

Percent by Mass

Given:

  Mass of solute (sugar) = 15 g

  Mass of solution (sugar sol'n) = 145 g

Asked: % by mass

Formula: % by mass = x 100%

Solution:

  % by mass = x 100%

  % by mass = x 100%

  % by mass = 0.1034 x 100%

  % by mass = 10.34%

Answer: % by mass = 10.34%

Explanation:

Solutions are made up of solute dissolved in a solvent. Different solutions have different concentrations. It can be unsaturated, saturated, or supersaturated. But, concentration can be expressed using the percent by mass. It is a more specific way of expressing concentration. It is the ratio of the mass of solute in relation to the mass of the solution and multiplied by 100%:

  % by mass = x 100%

Values are substituted in the formula to get the percent by mass. The higher the percent by mass, the higher the concentration of the solution.

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