Question

********MEDAL FOR CHEMISTRY HELP********
Using the solubility curve above, at 70 degrees C 75 grams of ammonium chloride is added to 100 grams of water. How much of this solute will remain in the bottom of the container?
Select one:
a. 100 grams
b. 62 grams
c. About 13 grams
d. 75 grams

Answer 1

The graph is included here:

Answer 2

I understand ammonium chloride is represented by NH4Cl on the graph, and that at 70 C there would typically be 62 NH4Cl held rather than 75. Do we just subtract 62 from 75 to get out answer?

Answer 3

Never mind, it's C.)