Molarity is the amount of solute in 1L of solution while percent by mass is the ratio of the mass solute to the mass of solution multiplied by 100. Both quantities are used measure the amount of solute in solution.
The question is incomplete however, I will try to explain molarity and percent by mass.
The term molarity means the number of moles of a substance is 1 L of solution while the percent by mass is the ratio of the mass solute to the mass of solution multiplied by 100.
Both molarity and percent by mass shows the amount of solute in a solution.
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Answer:
Both are ratios of the amount of solute over the amount of solution/
Explanation:
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