(a) The pOH of a 0.0230 M solution of Sr(OH)₂ is
(b) The concentration of the hydronium ion in an aqueous solution at 25 °C is 0.0015 M. What is the concentration of the hydroxide ion?
(c) The H⁺ concentration in an aqueous solution at 25 °C is 6.3 × 10⁻⁶. What is [OH⁻]?
(d) For the reaction A(g) → B(g) + 4C(g), what is the rate of pressure change for C if the pressure change for A is -0.120 atm/s?