AP Chemistry · Free-response questions 2013

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

Question 1

Open answer
Question 1 — 1. Answer the following questions about the solubility of some fluoride salts of alkaline earth metals. (a) A student prepares 100. mL of a saturated solution of MgF2 by adding 0.50 g of solid MgF2 to 100. mL of…

Source: College Board — AP Chemistry, Free-response questions, 2013

Question 3

Open answer
Question 3 — MgO(s) + 2 H+(aq) o Mg2+(aq) + H2O(l) 3. A student was assigned the task of determining the enthalpy change for the reaction between solid MgO and aqueous HCl represented by the net-ionic equation above. The student…

Source: College Board — AP Chemistry, Free-response questions, 2013

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