Please explain how to do this! Thanks.

## If 10.0 ml of blood plasma has a mass of 10.279 g and contains 0.870 g of protein, what is the mass/ mass percent concentration of the sample?

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# 1 Answer

Mass/mass percent concentration means the mass of the solute/mass of the solution times 100. You know both the mass of the solute (0.870 g protein) and the mass of the solution (10.279 g solution). So divide and multiply your result by 100. (0.870 / 10.279 * 100)