Unit 6 Solutions FE Review 25

Front

What is the formula to calculate the concentration of a solution after dilution?

Back

C1V1 = C2V2, where C1 is the initial concentration, V1 is the initial volume, C2 is the final concentration, and V2 is the final volume.

Front

What is the new concentration of a solution if 5.0 mL of a 3.0 M NaCl solution is diluted to a final volume of 10.0 mL?

Back

1.5 M

Front

What factor determines how far a pigment travels in paper chromatography?

Back

The pigment’s solubility in the solvent.

Front

What is the effect of heat on the solubility of a solute in a solvent?

Back

Heat increases the solubility of a solute in a solvent.

Front

Which model best depicts an aqueous solution of potassium nitride, K3N?

Back

Model D.

Front

What ion would form the least soluble compound with sulfate ion based on common solubility rules?

Back

Ca²⁺.

Front

Define solubility.

Back

Solubility is the ability of a substance (solute) to dissolve in a solvent at a given temperature and pressure.

Front

What is the relationship between temperature and solubility for most solid solutes?

Back

For most solid solutes, solubility increases with an increase in temperature.

Front

What is paper chromatography used for?

Back

Paper chromatography is used to separate and identify mixtures of substances, such as pigments.

Front

What is the role of a solvent in a solution?

Back

The solvent is the substance that dissolves the solute, forming a solution.