Practice Quiz

SAT II Chemistry Exam Prep

Category - Multiple Choice

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How many liters of .50 M HBr are required to neutralize 350 mL of 2 M KOH?
  1. .088 liters
  2. 8.8 liters
  3. 2.8 liters
  4. 4.6 liters
  5. 1.4 liters
Explanation
Answer: 1.4 liters

HBr is a strong, monoprotic acid while KOH is a strong base that releases one hydroxide ion per molecule. The concentrations and volumes of these solutions are related by the formula (Molarity1)(Volume1) = (Molarity2)(Volume2). Plugging in the variables indicates that 1.4 liters of HBr are required to neutralize the KOH.
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