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A saline solution with a mass of 400 g has 30 g of NaCl dissolved in it. What is the mass/mass percent concentration of the solution?
9 years ago

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DrBob222
(g solute/g solution)*100 = % mass/mass
9 years ago
Sabrina
@DrBoB222 30 / 400 * 100

0,75% ??
9 years ago

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