Multiple ChoiceA student titrates 25.0 mL of H2SO4 with 0.100 M NaOH. If it takes 50.0 mL of NaOH to reach the endpoint, how many moles of H2SO4 were present in the titrate?46views
Multiple ChoiceA solution contains 0.400 L of 0.350 M KBr. What is the mass of KBr (in grams) present in the solution?58views
Multiple ChoiceGiven the following data table for the reaction: 2 H2 + O2 → 2 H2O, if you start with 4.0 mol of H2 and 2.0 mol of O2, how many moles of H2O will be produced?46views
Multiple ChoiceIn a stoichiometry lab, you react 2.00 mol of HCl with 1.00 mol of CaCO3. According to the balanced equation CaCO3 + 2 HCl → CaCl2 + CO2 + H2O, what is the limiting reactant?33views
Multiple ChoiceFor the balanced chemical reaction N2+3H2→2N1H3, what is the mole ratio of N1H3 to N2?1views
Multiple ChoiceFor the balanced combustion reaction C3H8+5O2→3CO2+4H2O, which option gives the correct mole ratio between propane and oxygen?1views
Multiple ChoiceIn stoichiometry, how do you determine the mole ratio between N2 and H2 in the balanced equation N2+3H2→2NH3?1views