AP Chemistry 2023 Questions And Answers

Questions And Worked Solutions For AP Chemistry 2023 Exam

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AP Chemistry 2023 Free Response Questions - Complete Paper (pdf)

2023 AP Chemistry Free Response #1 Answers

Answer the following questions related to manganese compounds.
(a) Manganese has several common oxidation states.
(i) Write the complete electron configuration for an Mn atom in the ground state.
(ii) When manganese forms cations, electrons are lost from which subshell first? Identify both the number
and letter associated with the subshell. …

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2. In the gas phase, AlCl₃ is a molecular substance. A reaction of gaseous AlCl₃ at high temperature is represented by the following balanced equation. …

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3. Answer the following questions about an experiment in which CaCO₃(s) is combined with HCl(aq), represented by the following balanced equation.
   CaCO₃(s) + 2 HCl(aq) → CaCl₂(aq) + CO₂(g) + H₂O(l)
   (a) Write the balanced net ionic equation for the reaction. …

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4. A student is asked to prepare a buffer solution made with equimolar amounts of CH₃NH₂ (aq) and CH₃NH₃Cl(s).
   The student uses 25.00 mL of 0.100 M CH₃NH₂(aq), which contains 0.00250 mol of CH₃NH₂, to make the buffer.
   (a) Calculate the mass of CH₃NH₃Cl(s) that contains 0.00250 mol of CH₃NH₃Cl. …

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5. HCl is a molecular gas as a pure substance but acts as an acid in aqueous solution.
   (a) A sample of HCl(g) is stored in a rigid 6.00 L container at 7.45 atm and 296 K.
   (i) Calculate the number of moles of HCl(g) in the container. …

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6. Answer the following questions related to HBr(l) and HF(l).
   (a) In the following table, list all of the types of intermolecular forces present in pure samples of HBr(l) and HF(l). …

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7. Strontium hydroxide dissolves in water according to the following equation. The Ksp expression for strontium hydroxide is provided. …

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