StoichiometryCombustion analysis331Choose the best answerWhich substance absorbs water during combustion analysis?A50% KOHB50% Mg(OH)₂CMg(ClO₄)₂DCaO Like 0 Discuss 0Share
StoichiometryLimiting Reagent332Choose the best answer22.4 dm³ CH₄ and 11.2 dm³ O₂ are mixed at STP: CH₄ + 2O₂ → CO₂ + 2H₂O Which is the limiting reagent?ACH₄BO₂CCO₂DH₂O Like 0 Discuss 0Share
StoichiometryLimiting Reagent333Choose the best answerIn the decomposition: 2H₂O → 2H₂ + O₂ the reactant that limits the amount of products is:AH₂BO₂CH₂ODNone of these Like 0 Discuss 0Share
MDCAT Chemistry Past Papers Reconduct 2023#Percentage Composition#Stoichiometry334Choose the best answerWhat is the approximate percentage of oxygen in water by mass? (MDCAT Reconduct 2023)A33.33%B20.00%C88.88%D11.11% Like 0 Discuss 0Share
KMU MDCAT 2024 Chemistry#Percentage Yield#Stoichiometry335Choose the best answerWhen 4 g of magnesium was heated in excess of oxygen. Calculate the theoretical yield of magnesium oxide (MgO). (KMU MDCAT 2024)A3.7gB4.2gC5.4gD6.6g Like 0 Discuss 0Share