1. Determine the hydronium-ion concentration for a solution that has a pH of 0.17.
2. A solution of perchloric acid has a concentration of 3.00 x 10^-4 mol/L. Determine the pH of this solution.
3. A solution has a pOH of 4.5. Determine the hydroxide-ion concentration.
4. The concentration of hydroxide ions in a solution of strontium hydroxide is 8 x 10^-2 mol/L. Determine the pOH of this solution.
5. Flask X contains 1 dm3 of helium at 2kPa pressure and flask Y contains 2 dm3 of neon at 1kPa pressure.? If the flasks are connected at constant temperature, what is the final pressure?