AP Chemistry · Free-response, form B 2010

6 questions, each with its course unit and the official scoring guidelines.

Official paper (PDF) · QuestionsAll AP Chem papers→

Question 3

Open answer
Question 3 — 3. A sample of ore containing the mineral tellurite, TeO2 , was dissolved in acid. The resulting solution was then reacted with a solution of K2Cr2O7 to form telluric acid, H2TeO4 . The unbalanced chemical equation for…

Source: College Board — AP Chemistry, Free-response, form B, 2010

Question 5

Open answer
Question 5 — 5. A solution of 0.100 M HCl and a solution of 0.100 M NaOH are prepared. A 40.0 mL sample of one of the solutions is added to a beaker and then titrated with the other solution. A pH electrode is used to obtain the…

Source: College Board — AP Chemistry, Free-response, form B, 2010

Question 6

Open answer
Question 6 — H2(g) + Cl2(g) → 2 HCl(g) 6. The table below gives data for a reaction rate study of the reaction represented above. Experiment Initial [H2] (mol L−1) Initial [Cl2] (mol L−1) Initial Rate of Formation of HCl (mol L−1…

Source: College Board — AP Chemistry, Free-response, form B, 2010

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