UHS MDCAT 2025 Chemistryuhs mdcat chemistry 2025#Percentage Yield#Stoichiometry996Choose the best answerA chemical reaction has a theoretical yield of 25 g, but only 20 g of product was obtained, What is the percentage yield of the reaction?A20%B25%C45%D80% Like 3 Discuss 3Share
Carboxylic AcidsEffect of Substituents on Acidity of Benzoic Acid997Choose the best answerWhich substituent decreases the acidity of benzoic acid the most?A–NO₂B–ClC–CND–CH₃ Like 0 Discuss 0Share
StoichiometryMolar Volume at STP998Choose the best answer5.6 L O₂ at STP (273 K and 1 atm) corresponds to:A1 molB1/2 molC1/4 molD1/8 mol Like 0 Discuss 0Share
Chemical BondingIonic and Covalent Character999Choose the best answerWhich compound has the least ionic character?ANaClBHFCHClDCsF Like 0 Discuss 0Share
Stoichiometry Stoichiometry MCQS#Avogadro Constant1000Choose the best answerA mass of 1/N_A gram is approximately equal to which quantity?AThe mass of a protonBMolar massCOne atomic mass unit (u)DA and C Like 1 Discuss 0Share