2026, Question 3 · Long answer · 10 points · about 23 minutes

Nitrous acid ionization and titration

Analyze weak acid equilibrium at two temperatures and interpret a titration curve, equilibrium constants and indicator choice.

1 Read the question

The question is College Board's, from the 2026 exam. It starts on page 9 of the PDF.

Open Question 3 (PDF, page 9)

2 Write your answer

Answer each part the way you would on the exam, in full sentences, with your work shown. Your writing saves as you type.

3 Score it

Score your answer against College Board's scoring guidelines, one point at a time. Give yourself a point only when your answer says what the guideline asks for.

Scoring guidelines (PDF, page 6)

Question, scoring guidelines: College Board. The title, summary are ours.