Multiple Choice
What is the concentration (M) of KCl in a solution made by mixing 30.0 mL of 0.100 M KCl with 50.0 mL of 0.100 M KCl?
6. Chemical Quantities & Aqueous Reactions
Molarity
Back6. Chemical Quantities & Aqueous Reactions
Molarity
- Multiple ChoiceWhat is the concentration of K⁺ ions in a 0.15 M solution of K₂S?
- Open Question
What is the molarity of a solution that contains 17 g of NH3 in 0.50 L of solution?
1views - Multiple ChoiceYou need to prepare 2.00 L of 0.100 M Na2CO3 solution. The best procedure is to weigh out:
- Multiple ChoiceWhat is the molarity of a solution prepared by dissolving 5.0 grams of NaCl (molar mass = 58.44 g/mol) in enough water to make 250 mL of solution?
- Open Question
How many moles of Ba(NO3)2 are there in 0.25 l of a 2.00 M Ba(NO3)2 solution?
2views - Multiple ChoiceThe molarity of an aqueous solution containing 75.3 g of glucose (C₆H₁₂O₆) in 35.5 mL of solution is ________.
- Open QuestionA solution of ethanol in water is prepared by dissolving 75ml1views
- Open Question
Commercial grade hcl solutions are typically 39.0% (by mass) hcl in water. Determine the molarity of the HCl, if the solution has a density of 1.20 g/mL.
2views - Multiple ChoiceWhat volume of solution is prepared when 25.0 g of ethanol (C₂H₅OH) is added to enough water to make a 0.750 M ethanol solution? (Molar mass of ethanol = 46.08 g/mol)
- Multiple ChoiceWhat is the molarity of Cl⁻ in a 0.220 M NaCl solution?
- Multiple ChoiceCalculate the number of grams of KOH in 250.0 mL of a 0.189 M solution.
- Multiple ChoiceHow many moles of CaSO4 are present in 50.0 mL of 0.250 M CaSO4 solution?
- Multiple ChoiceHow many grams of NaOH are required to make 0.350 L of a 0.500 M NaOH solution?
- Multiple ChoiceWhat is the molarity of Fe(SCN)²⁺ in a solution with an absorbance of 0.243, prepared by mixing 2.5 mL of 0.200 M Fe(NO₃)₃, 0.4 mL of 0.002 M NaSCN, and 7.1 mL of 0.10 M HNO₃?