Question

Part A

If K_b for NX₃ is 7.5×10⁻⁶, what is the pOH of a 0.175 M aqueous solution of NX₃?

Express your answer numerically.

Part B

If K_b for NX₃ is 7.5×10⁻⁶, what is the percent ionization of a 0.325 M aqueous solution of NX₃?

Express your answer numerically to three significant figures.

Part C

If K_b for NX₃ is 7.5×10⁻⁶, what is the pK_a for the following reaction?

 

Express your answer numerically to two decimal places.