Pharmacy Curriculum Outcomes Assessment (PCOA) Practice Exam

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How many moles of sodium hydroxide are required to fully hydrolyze 0.25 moles of triglyceride?

  1. 0.25 moles

  2. 0.50 moles

  3. 0.75 moles

  4. 1.00 mol

The correct answer is: 0.75 moles

Hydrolysis is a chemical reaction that involves breaking down a compound by reacting it with water. In this case, we are hydrolyzing triglyceride, which is a molecule made up of three fatty acid chains and one glycerol molecule. Sodium hydroxide is a strong base and is commonly used in hydrolysis reactions. To determine the amount of sodium hydroxide needed for this reaction, we need to use the balanced chemical equation and the mole ratio between sodium hydroxide and triglyceride. The balanced equation for the hydrolysis of triglyceride by sodium hydroxide is C3H5(OOC18H35)3 + 3NaOH → 3C3H5(OH)3 + 3Na(OOC18H35) From this equation, we can see that for every 1 mole of triglyceride,

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