AP Chemistry Exam Questions And Answers 2025

AP Chemistry Exam Questions And Answers 2025 What is a solution? - Correct Answer A homogeneous mixture made up of two or more substances that do not chemically combine; instead, the substances mix uniformly in the solution. What is a solvent? - Correct Answer The substance present in the largest quantity by volume, usually water. What is a solute? - Correct Answer The substance that is dissolved in the solvent. How do you find the empirical formula of a compound? - Correct Answer First, determine mol by dividing the percent comp or mass of elements by their molar mass, then divide the mol values by the smallest mol value. How do you find the molecular formula of a compound? - Correct Answer First, determine the mass of the empirical formula, then divide the mass of the molecular formula by the mass of the empirical and finally multiply the empirical formula by the ratio obtained between the masses. What is the equation to find percent yield? - Correct Answer (laboratory yield/theoretical yield) * 100 = percent yield