객관식What is the molarity of a solution prepared by dissolving 2.0 moles of sodium bromide (NaBr) in 200 mL of solution?96views
객관식Two acid solutions are prepared: Solution A contains 0.50 mol of HCl dissolved in 1.0 L of water, and Solution B contains 0.25 mol of HCl dissolved in 0.5 L of water. Which solution is more concentrated?88views
객관식A solution has a molarity of 8.59 M NaCl and a volume of 125 mL. How many moles of NaCl are present in the solution?105views
객관식What is the molarity of a solution prepared by dissolving 4.2 grams of NaF (molar mass = 42 grams/mol) in 200 mL of water?106views
객관식What is the concentration (in M) of the chloride ion when 15.3 mL of a 0.629 M solution of barium chloride is combined with 18.9 mL of a 0.624 M solution of aluminum chloride? Assume the volumes are additive.595views
객관식What is the molarity of a solution that contains 0.50 mole of NaOH in 0.50 liter of solution?90views
객관식Which of the following preparations would give a glucose solution with a concentration of 0.5 M? Select the correct option.97views
객관식What are the concentrations of Al^{3+} and Cl^- ions in a 0.12 M solution of AlCl_3, assuming complete dissociation?99views