a. What is the pH if the concentration of hydroxide [OH-] = 8.13×10^-3 M? Solve to 4 significant figures.
b. A piston contains 933.2 mL of octane (C8H18) at a pressure of 1.60 atm and at -51 °C. What is the final temperature in Celsius if the piston is compressed to a volume of 534.6 mL and a pressure of 8.50 atm?