What is the percent-by-mass concentration of NaCl in a solution that is prepared by adding 25.0...

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What is the percent-by-mass concentration of NaCl in a solution that is prepared by adding 25.0...

What is the percent-by-mass concentration of NaCl in a solution that is prepared by adding 25.0 g of NaCl to 90.0 g of water?

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Answer 1

Answer #1

There are two types of percent concentration: percent by mass and percent by volume. Percent by mass (m/m) is the mass of solute divided by the total mass of the solution, multiplied by 100 %.

Here Mass oF the solute,NaCl=25g

Mass oF the Solvent, water=90g

Total mass of the solution=mass of solvent+solute=90+25=115g

%mass=(mass of solute/mass of Solution)*100%

=(25/115)*100%

=21.74% mass by mass concentration solution

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Answer 2

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What is the percent-by-mass concentration of NaCl in a solution that is prepared by adding 25.0...

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What is the concentration, in mass percent (m/m), of a solution prepared from 23.0 g NaCl...

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