If 10.0 mmol of sodium hydroxide is added to 1.00 L of a buffer that is 0.200 M HClO(aq) and 0.155 M NaHClO(aq) ,The final concentrations of HClO(aq)
And ClO^-(aq) ,Respectively,Are

Question

If 10.0 mmol of sodium hydroxide is added to 1.00 L of a buffer that is 0.200 M HClO(aq) and 0.155 M NaHClO(aq),The final concentrations of HClO(aq) And ClO^-(aq),Respectively,Are

Quizplus · Accepted Answer

The reaction between sodium hydroxide (NaOH) and hypochlorous acid (HClO) produces sodium hypochlorite (NaClO) and water. Since 10.0 mmol of NaOH is added to the solution, it will react with an equivalent amount of HClO, decreasing its concentration by 10.0 mmol/L in a 1.00 L solution, which is 0.010 M. Therefore, the concentration of HClO decreases from 0.200 M to 0.190 M. The NaOH also increases the concentration of NaClO by the same amount (0.010 M), raising its concentration from 0.155 M to 0.165 M.

If 100 Mmol of Sodium Hydroxide Is Added to 1