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what is the percent by mass concentration of a solution that contains 5.30 g of salt dissolved in 19.7 of water​

Sagot :

Given:

[tex]mass_{solute} = 5.30 \: g[/tex]

[tex]mass_{solvent} = 19.7 \: g[/tex]

Required:

[tex]\% \: by \: mass[/tex]

Equation:

[tex]\% \: by \: mass = \frac{mass_{solute}}{mass_{solute} \: + \: mass_{solvent}} \times 100[/tex]

Solution:

[tex]\% \: by \: mass = \frac{5.30 \: g}{5.30 \: g \: + \: 19.7 \: g} \times 100[/tex]

Answer:

[tex]\% \: by \: mass = 21.2\%[/tex]

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