Elemental Composition of Pure Substances

AP Chemistry· difficulty 2/5

Mass percent of solute = (mass solute / mass solution) × 100%. A solution made by dissolving 5 g NaCl in 95 g water has mass %

  • A

    5%

    check_circle
  • B

    9.5%

  • C

    5.26%

  • D

    50%

Explanation

Mass solution = 5 + 95 = 100 g. Mass % = 5/100 × 100% = 5%.

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