A solution of sea water contains 3.0g salt in 97.0g of water. What is the concentration of this solution expressed as percent salt by mass?

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A solution of sea water contains 3.0g salt in 97.0g of water. What is the concentration of this solution expressed as percent salt by mass?

3% salt

Expert answered|Helopoh|Points 797|Rating ***** (+159 -5)

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Asked 1/20/2009 1:39:49 PM

Updated 292 days ago|8/29/2025 9:22:44 AM

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Find the total mass of the solution
Total mass = mass of salt + mass of water = 3.0 g + 97.0 g = 100.0 g
Use the percent by mass formula
% Salt by mass = (mass of solute / total mass of solution) × 100
% Salt by mass = (3.0 / 100.0) × 100 = 3.0%
Answer: 3.0% salt by mass

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Added 292 days ago|8/29/2025 9:22:44 AM

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