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Chapter 1: Q11.3-19E (page 9)

Calculate the percent by mass of KBr in a saturated solution of KBr in water at 10 掳C. See Figure for useful data, and report the computed percentage to one significant digit.

Short Answer

Expert verified

The percentage by mass of KBr in a saturated solution of KBr in water at 10oC is 40%.

Step by step solution

01

Solubility

Solubility is defined as the solute which dissolves in the solvent and forms a solution. The solution can be different as some solutions can conduct electricity and some cannot.

02

Explanation for Ions Interaction

As per the graph,

At \({\rm{ 10 ^\circ C,}}\)\) the solubility of KBr in water is approximately 60g per 100g of water.

\(\begin{array}{l}{\rm{\% Mass of KBr = }}\frac{{{\rm{Mass of solute}}}}{{{\rm{Total mass of Solution}}}} \times {\rm{100}}\\{\rm{\% Mass of KBr = }}\frac{{{\rm{60g KBr}}}}{{{\rm{(60 + 100)g}}}} \times {\rm{100 = 40\% }}\end{array}\)

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