Multiple ChoiceHow many grams of oxygen (O2) are needed to completely react with 1.33 g of butyric acid (C4H8O2) in a combustion reaction?365views
Multiple ChoiceHow many grams of oxygen (O2) are needed to completely react with 1326.76 grams of ammonia (NH3) according to the balanced chemical equation: 4 NH3 + 5 O2 → 4 NO + 6 H2O?394views
Multiple ChoiceHow many grams of silver chromate (Ag2CrO4) will precipitate when 150 mL of 0.5 M silver nitrate (AgNO3) is added to 100 mL of 0.4 M potassium chromate (K2CrO4)?453views
Multiple ChoiceHow many grams of sodium metal are needed to generate 4.00 L of hydrogen gas at STP from the reaction with water?377views
Multiple ChoiceHow many grams of chlorine gas (Cl2) are needed to react completely with sodium to produce 117 grams of sodium chloride (NaCl)?530views
Multiple ChoiceWhat is the concentration of CaCO₃ in mol/L after a 0.2557 g sample is reacted with excess HCl, given that the excess HCl is neutralized by 31.62 mL of NaOH with a concentration of 0.0251 mol/L?498views
Multiple ChoiceWhat is the expected mass of KHP (potassium hydrogen phthalate) required to react completely with 44.32 mL of KOH solution if the molarity of KOH is 0.566 M?586views
Multiple ChoiceWhat mass, in grams, of potassium chlorate (KClO3) is needed to contain 0.8542 mol of oxygen atoms?502views
Multiple ChoiceWhen 2.50 mol of Al and 3.00 mol of Cl2 combine in the reaction 2Al(s) + 3Cl2(g) ⇌ 2AlCl3(s), how many moles of AlCl3 are formed?491views
Multiple ChoiceWhen 2.50 mol of Al and 3.00 mol of Cl2 combine in the reaction 2Al(s) + 3Cl2(g) → 2AlCl3(s), how many moles of the excess reactant remain at the end of the reaction?486views
Multiple ChoiceWhen 2.50 mol of Al and 3.00 mol of Cl2 combine in the reaction 2Al(s) + 3Cl2(g) → 2AlCl3(s), how many moles of the excess reactant remain at the end of the reaction?497views
Multiple ChoiceWhen 2.50 mol of Al and 3.00 mol of Cl2 combine in the reaction 2Al(s) + 3Cl2(g) → 2AlCl3(s), how many moles of the excess reactant remain at the end of the reaction?526views