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- 1. Multiple Choice
Molality (m) = moles of solute / _________________________.
kilogram of solvent
kiloliter of solvent
kilometer of solvent
ounces of solvent
- 2. Multiple Choice
Molar mass of NaOH is ______________________
40 grams/mol
50 grams/mol
45 grams/mol
38 grams/nol
- 3. Multiple Choice
What is the molality of a solution made by dissolving 2 moles of NaOH in 400 grams of water?
5 mol/kg. solvent
4 mol/kg solvent
3 mol/kg. solvent
2.5 moles /kg solvent
- 4. Multiple Choice
molality is defined as ________________________
the moles of solute per kilogram of solvent
moles of solute per liter of solution
mass of solute/ mass of solution
mass of solute/ mass of solvent X 100
- 5. Multiple ChoiceTrue or False? The higher the concentration of a solution the less solutes it has in it.TrueFalse
- 6. Multiple Choice
Molarity is measured in _____.
moles per g.
mols per L.
moles per mm.
moles per mL.
- 7. Multiple ChoiceWhat is the mass of 0.75 moles of (NH4)3PO4?101.75 g121.75 g111.75 g131.75 g
- 8. Multiple ChoiceHow many moles of NaCl are present in a solution with a molarity of 8.59 M and a volume of 125 mL?1074 mol0.069 mol1.07 mol62.7 mol
- 9. Multiple Choice
What do molarity and molality have in common?
Both have "moles solute" in the numerator
Both have "kg solvent" in the denominator
Both have "L solution" in the denominator
Both have "moles solution" in the denominator
- 10. Multiple Choice
Which equation is used to find molarity?
Moles solute/L solution
Moles solute/kg solution
Moles solute/kg solvent
Grams solute/L solution
- 11. Multiple Choice
Which equation is used to find molality?
Moles solute/L solution
Moles solute/kg solution
Moles solute/kg solvent
Grams solute/L solution
- 12. Multiple Choice
What is the molality of a solution in which 3.0 moles of NaCl is dissolved in 1.5 Kg of water?
2.0 M
0.22 m
135 m
2.0m
- 13. Multiple ChoiceWhat is the molarity of 4 grams of sodium chloride in 3,800 mL of solution?0.018 M0.018 mol1.052 M1.052 mol
- 14. Multiple ChoiceWhat is the molarity in 650. ml of solution containing 63 grams of sodium chloride?2.4 M0.86 M1.7 M0.54 M
- 15. Multiple ChoiceTotal number of mol fraction for all component in the solution is equal to1.00.950.502.0
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