AP Chemistryeasymcq1 pt
What is the molarity of a solution made by dissolving 20.0 g of NaOH (40.00 g/mol) in enough water for 250.0 mL?
A.2.00 M
B.0.500 M
C.1.00 M
D.4.00 M
Explanation
Core Concept
Moles = 20.0 g ÷ 40.00 g/mol = 0.500 mol. M = 0.500 mol ÷ 0.2500 L = 2.00 M.
Correct Answer
A2.00 M
More Unit 3: Intermolecular Forces and Properties practice questions
- hardA solution's concentration is 2.0 M. Which statement about the solution is true?
- hardWhich change lowers the solubility of CO₂ in a sealed soda bottle?
- hardA 3.0 L sample of gas at 400 K and 2.0 atm is compressed to 1.0 L at constant temperature. What is the new pressure?
- hardWhich observation shows that the particles of a solution are smaller than those of a suspension?
- hardWhich pair would require the most energy to separate: the same liquid's molecules at its boiling point or at room temperature?
Practice more AP Chemistry questions with full explanations
Practice Unit 3: Intermolecular Forces and Properties Questions →