Question

If 0.1 M NaOH solution was used in this titration, which statement correctly explains point B on the curve?

O This is the equivalence point of the curve.
O 0.003 mol of OH ions are present in the flask at this point.
O 0.0005 is the number of excess moles of OH ions at this point.
O 0.0005 is the number of moles of H* ions present at this point.

Answer 1

The correct statement is: O This is the equivalence point of the curve.

Step-by-step explanation:

The equivalence point is the point in a titration where the number of moles of acid added is equal to the number of moles of base needed to neutralize the acid. At this point, the acid and base react to form water and a salt. The pH at the equivalence point depends on the strength of the acid and base being used and the total volume of the solution. In general, the pH at the equivalence point will be higher for a strong acid-strong base titration than for a weak acid-strong base titration.