Answer:
[tex]m_{undissolved}=27g[/tex]
Explanation:
Hello,
In this case, we first define the solubility as the maximum amount of a solute that is completely dissolved in an specific amount of solvent and it is temperature-dependent. Thus for potassium iodide, its solubility at 30°C is 153 g per 100 cm3 of water, therefore, with the given amount, the undissolved amount results:
[tex]m_{undissolved}=180g-153g=27g[/tex]
Best regards.