Question

part a
what is the solubility of ki at 10c?
a 145 g
b 7 g
c 135 g
d 18 g
part b
if you create a 70g solution of hcl at 50c, how would you classify the solution?
a unsaturated
b none of the above
c supersaturated
d saturated
part c
which compound has the lowest solubility at 80 c?

Explanation:

Part A

Step1: Locate the temperature on the x - axis

Locate \(10^{\circ}C\) on the x - axis (temperature axis).

Step2: Find the corresponding value on the KI curve

Move vertically from \(10^{\circ}C\) until intersecting the KI curve, then move horizontally to the y - axis (grams of solute per \(100gH_2O\)). The value is approximately \(135g\).

Step1: Locate the temperature on the x - axis

Locate \(50^{\circ}C\) on the x - axis.

Step2: Find the solubility of HCl at \(50^{\circ}C\)

From the solubility curve, the solubility of HCl at \(50^{\circ}C\) is greater than \(70g\) per \(100gH_2O\). A solution with a solute amount less than the solubility at a given temperature is unsaturated.

Step1: Locate the temperature on the x - axis

Locate \(80^{\circ}C\) on the x - axis.

Step2: Compare the solubilities of different compounds

For \(SO_2\), its solubility curve is the lowest among the given compounds at \(80^{\circ}C\) when looking at the y - axis (grams of solute per \(100gH_2O\)) values for each compound's curve at \(80^{\circ}C\).

Answer:

C. \(135g\)

Part B