Calculate the pH of a solution that is 0.040 M HF and 0.080 M NaF. The Ka for HF is 3.5 × 10-4.

A buffer exhibits a pH value of 7.42 when consisting of 0.255 M in hypochlorous acid (HClO) and 0.255 M in sodium hypochlorite. What is the pKa of HClO?  

When dissolved in water, which compound is generally considered to be an Arrhenius acid?

Determine the Kb for CN⁻ at 25°C. The Ka for HCN is 4.9 × 10-10.

Which of the following is a Brønsted-Lowry acid?

If the pKa of weak acid HA is 3.74 and the pH of a solution containing HA/NaA is 13, which of the following is TRUE?

Which of the following is a strong acid? i) H2SO3 ii) HF iii) HBrO4 iv) HNO2

Which of the following is a Lewis base?

Which of the following salts is the most soluble in water? i) AgBr, Ksp = 5.4 x 10-13 ii) AgCl, Ksp = 1.8 x 10-10 iii) AgSCN, Ksp = 1 x 10-12 iv) AgI, Ksp = 8.5 x 10-17

Which of the following is an Arrhenius acid?