Help 1: A cosmetic chemist is making a lotion which can have a maximum concentration of 0.04 M glycerol (C3H6O3). If each bottle of lotion is 0.5 liters, how many moles could each bottle have at the maximum?

2: What is the pH of an aqueous solution of the strong acid, Perchloric Acid (HClO4), with a concentration of 0.007 M?

3: In the following reaction, how many moles of HNO3 are needed to react with 7 moles of KOH to achieve a pH of 7.00?

HNO3 + KOH -> H2O + KNO3

The second and last option are the answers

Sink to the bottom. addition of potassium nitrate past it’s dissolution capacity at a particular temperature will cause the extra to just sink to the bottom of the glass.however, if you were to raise the temperature of the solution prior to dissolving it, and then slowly decrease the temperature after the dissolution, you would create a “supersaturated” solution - a solution that has more solute dissolved into it than should be allowed. if you add any extra solute past this, the entire solution would “crystallize,” and this is how you get those cool videos on youtube.

True i think i’m not sure