A Sample of 2

question 128

Multiple Choice

A sample of 2.00 g of the non-volatile compound urea, CO(NH₂) ₂ (molar mass = 60 g/mol) , is dissolved in 20.0 grams of water. What is the vapor pressure of water above this solution?
The vapor pressure of pure water at the temperature of the experiment is 0.150 atm.

• A) 0.010 atm
• B) 0.146 atm
• C) 0.038 atm
• D) 0.150 atm
• E) 0.045 atm

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Definitions:

Sandstone

a sedimentary rock consisting primarily of sand-sized minerals or rock grains, most commonly quartz.

Limestone

A type of sedimentary rock, primarily composed of calcium carbonate, often formed from the remains of marine organisms.

Shale

A fine-grained sedimentary rock formed from clay and silt-sized particles, often easily split into thin, parallel layers.

Impermeable Layers

Geological strata that do not allow the passage of water or fluids due to their tightly packed nature.