1. What volume in mL of 28.0M H2SO4 is needed to contain 53.0g of H2SO4?
2. How many grams of calcium hydroxide Ca(OH)2 are needed to make 532.0 mL of a 1.90M solution?
3. If 12 mL of water are added to 124mL of a 0.505M K2SO4 solution, what will the molarity of the diluted solution be?

Ok so co(g) is not pronoused that. the only clue is that youpronouse it the oppisote way. 

Answer (b) supersaturation;

We first assume that this gas is an ideal gas where it follows the ideal gas equation. the said equation is expressed as: pv = nrt. from this equation, we can predict the changes in the pressure, volume and temperature. if the volume and the temperature of this gas is doubled, then the pressure still stays the same.