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CHEM1 Colligative Properties Worksheet

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Colligative properties are properties which depend only on the ratio of the number of particles of solute and solvent in the solution, not the identity of the solute. This worksheet contains practice problems on the topic as well as step by step answers to said problems.

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  • July 7, 2024
  • 3
  • 2023/2024
  • Exam (elaborations)
  • Questions & answers
  • Secondary school
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Republic of the Philippines
DEPARTMENT OF SCIENCE AND TECHNOLOGY
PHILIPPINE SCIENCE HIGH SCHOOL
WESTERN VISAYAS CAMPUS

Chemistry 1: General Inorganic Chemistry I
Fourth Quarter SY 2023-24
WORKSHEET 4: COLLIGATIVE PROPERTIES

Class # 21 Name: Charisse Nichole Doriego Section: Be Li Mg Ne Date: May 9, 2024

INSTRUCTIONS: Solve the following problems. Show the given, required, complete solution, and final answer with correct units
and proper number of significant figures. Staple extra sheets as needed.

1. A sample of seawater contains 3.75 g of salt for every liter of solution. If the main component of the sea water sample is NaCl,
what is the osmotic pressure of sea water at 25 оC?

Given: mass = 3.75 g Required: osmotic pressure of sea Final answer: 3.14 atm
temperature = 25оC water


Solution:




2. A group of natural product chemists wants to determine the molar mass of their newly discovered carbohydrate. They dissolved
15.2 mg of sample in a 15.0 mL solution. The resulting solution has an osmotic pressure of 8.50 torr at 20 оC. What is the molar
mass of the carbohydrate?

Given: mass = 15.2 mg Required: molar mass of Final Answer: 2180 g/mol
volume = 15.9 mL carbohydrate
osmotic pressure = 8.50 torr
temperature = 20 оC

Solution:




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