Multiple ChoiceGiven that the molar mass of LiF is 25.94 g/mol, how many moles of LiF are present in a 10.37 g sample?44views
Multiple ChoiceA solution is prepared by dissolving 3.35 mol of NaCl in enough water to make 1.00 kg of solution. What is the mole fraction of NaCl (solute) in the solution?31views
Multiple ChoiceIn the balanced chemical equation for the complete combustion of butane (C_4H_{10}), what is the mole ratio of butane (C_4H_{10}) to carbon dioxide (CO_2)?39views
Multiple ChoiceWhat is the quantity, in moles, of CH3OH present in 150.0 mL of a 0.210 M CH3OH solution?37views
Multiple ChoiceWhat is the approximate combined mole fraction of N_2 and O_2 in Earth's atmosphere?32views