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Riverside City College Movement of Small Particles Chemistry Paper

Riverside City College Movement of Small Particles Chemistry Paper

Question Description

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4.hw 13

1.

The diagram shows two aqueous solutions separated by a semi-permeable membrane.

Two aqueous solutions separated by a semipermeable membrane. The water level on each side of the membrane is equal. In the left solution there are 12 black spheres. In the right solution there are 6 white spheres.

Which diagram illustrates what this system will look like after some time has passed?

Two aqueous solutions separated by a semipermeable membrane. The water level on each side of the membrane is equal. In the left solution there are 10 black spheres and 1 white sphere. In the right solution there are 5 white spheres and 2 black spheres.

Two aqueous solutions separated by a semipermeable membrane. The water level on the right is greater than the water level on the left. In the left solution there are 10 black spheres. In the right solution there are 6 white spheres and 2 black spheres.

Two aqueous solutions separated by a semipermeable membrane. The water level on the right is greater than the water level on the left. In the left solution there are 12 black spheres. In the right solution there are 6 white spheres.

Two aqueous solutions separated by a semipermeable membrane. The water level on the left is greater than the water level on the right. In the left solution there are 12 black spheres. In the right solution there are 6 white spheres.

2.

Classify each statement as applying to osmosis, dialysis, or both osmosis and dialysis.

Osmosis, Dialysis, Both

answer bank ; involves the movement of small particles across a semipermeable membrane, may be used as a way to separate small molecules and ions from Colloids, involves the movement of water across a semipermeable membrane, can be used medically in artificial kidney machines to remove urea, involves the movement of water across a cell membrane

3.

Arrange the boiling points of the aqueous solutions, relative to pure water. Assume complete dissociation for the ionic compounds.

Highest boiling point

Lowest boiling point


answer bank ; H2O,0.17m C6H12O6, 0.13mK2SO4, 0.23m C6H12O6, 0.15m NaNO3

4.

Assuming equal concentrations and complete dissociation, arrange these aqueous solutions by their freezing points.

Highest freezing point

Lowest freezing point


Answer bank : Na3PO4,NaNO3, Li2CO3

5.

A solution is made by dissolving 0.583 mol

of nonelectrolyte solute in 809 g

of benzene. Calculate the freezing point, f,

and boiling point, b,

of the solution. Constants can be found in the table of colligative constants.

C

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