1. a. What is a colligative property? b. Name 4 colligative properties

Chemistry: Matter and Change
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Chapter14: Mixtures And Solutions
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What is a colligative property
1. a. What is a colligative property?
b. Name 4 colligative properties
2. a. Define molality
b. Calculate the molality of a solution prepared by dissolving 64.8 g of sucrose (C12H22011)
in 250 mL of water (density of water = 1.00 g/mL)
CHM 1024 – Experiment 4. Freezing Point Depression
Page 1 of 2
Transcribed Image Text:1. a. What is a colligative property? b. Name 4 colligative properties 2. a. Define molality b. Calculate the molality of a solution prepared by dissolving 64.8 g of sucrose (C12H22011) in 250 mL of water (density of water = 1.00 g/mL) CHM 1024 – Experiment 4. Freezing Point Depression Page 1 of 2
3. Ms Lauren R. Davis prepared three aqueous solutions of sucrose (C12H22O11) in proportions
as shown in the table below. Complete the table. Show sample calculations for Expt. #2.
Moles
Mass of Volume
of H2O
H2O
Volume | Molality | Molarity | Density
solution
Mass of
Еxpt #
of
sucrose
solution
solution
solution
sucrose
1
4.329
25.00 mL
27.5 mL
6.768
25.00 mL
29.2 mL
3
9.674
25.00 mL
31.5 mL
4. Would you expect the molarity and the molality to be the same for an 8.8% solution of
sucrose? Explain.
Transcribed Image Text:3. Ms Lauren R. Davis prepared three aqueous solutions of sucrose (C12H22O11) in proportions as shown in the table below. Complete the table. Show sample calculations for Expt. #2. Moles Mass of Volume of H2O H2O Volume | Molality | Molarity | Density solution Mass of Еxpt # of sucrose solution solution solution sucrose 1 4.329 25.00 mL 27.5 mL 6.768 25.00 mL 29.2 mL 3 9.674 25.00 mL 31.5 mL 4. Would you expect the molarity and the molality to be the same for an 8.8% solution of sucrose? Explain.
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