UHS MDCAT 2025 Chemistryuhs mdcat chemistry 2025#Percentage Yield#Stoichiometry6Choose the best answerConsider the given balanced chemical equation: 2H₂ + O₂ → 2H₂O. If 4 g of H₂ reacts with 32 g of O₂ to produce 28 g of H₂O, what is the percentage yield of the reaction?A63.6%B77.8%C87.5%D92.5% Like 0 Discuss 0Share
StoichiometryPercentage Yield7Choose the best answerWhy is the percentage yield of a reaction often less than 100%?ASome reactants may remain unreactedBProduct may be lost during separation or transferCSide reactions may produce unwanted productsDAll of the above Like 0 Discuss 0Share
StoichiometryPercentage Yield8Choose the best answerIf actual yield is 15 g and theoretical yield is 20 g, what is the percentage yield?A50%B75%C80%D90% Like 0 Discuss 0Share
MDCAT Chemistry Past Papers 2024Sindh MDCAT Chemistry Past Paper 2024#Percentage Yield#Stoichiometry9Choose the best answerGenerally, actual yield is:ALess than theoretical yieldBEqual to the theoretical yieldCGreater than the theoretical yieldDGreater than percent yield Like 0 Discuss 0Share
BUMHS MDCAT 2025 Chemistry#Percentage Yield#Stoichiometry10Choose the best answerA student expects a theoretical yield of 28 g. After isolating and drying the sample, its mass is 18 g. Later, 4 g of this mass is found to be impurity. What are the actual yield and percentage yield?A14 g and 50%B18 g and 75%C28 g and 85%D24 g and 90% Like 0 Discuss 0Share