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11) Given that the solubility of potassium chlorate in water is 10.0 g/100 g water at 30°C, what mass of potassium
chlorate is dissolved in 250 grams of an unsaturated solution at 30°C?

Respuesta :

Answer:

it is a pure substance

Explanation:

idk how to explain it

Given that the solubility of potassium chlorate in water is 10.0 g/100 g water at 30°C, up to 22.7 g of potassium chlorate can be dissolved in 250 g of unsaturated solution.

The solubility of potassium chlorate in water is 10.0 g/100 g water at 30 °C, that is, we can dissolve up to 10.0 g of potassium chlorate in 100 g of water at 30 °C.

At 30 °C, if a solution contains 100.0 g of potassium chlorate (solute) and 100 g of water (solvent), the mass of the solution is:

[tex]m_{solution} = m_{solute} + m_{solvent} = 10.0 g + 100 g = 110 g[/tex]

At 30 °C, 110 g of solution can hold up to 10.0 g of solute. The maximum mass of solute that can be held by 250 g of the solution is:

[tex]250 g Solution \times \frac{10.0gSolute}{110gSolution} = 22.7 g Solution[/tex]

Given that the solubility of potassium chlorate in water is 10.0 g/100 g water at 30°C, up to 22.7 g of potassium chlorate can be dissolved in 250 g of unsaturated solution.

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