Exploring Solutions and Colloids

What are the three main types of solutions?

• Liquid, Gaseous, Colloidal

• Solid, Liquid, Foam

• Solid, Liquid, Plasma

• Solid, Liquid, Gaseous

Define a colloid and give an example.

• Milk

• Water

• Sugar

• Sand

What is the difference between a suspension and a colloid?

• A suspension has larger particles that can settle, while a colloid has smaller particles that remain evenly dispersed.

• A colloid has larger particles that can settle, while a suspension has smaller particles that remain suspended.

• A suspension is a type of colloid with no particles, while a colloid contains solid particles.

• A suspension has smaller particles that remain suspended, while a colloid has larger particles that can settle.

How is molarity calculated?

• Molarity = moles of solute / liters of solution

• Molarity = grams of solute / liters of solution

• Molarity = liters of solution / moles of solute

• Molarity = moles of solute / milliliters of solution

What is the unit of measurement for normality?

• L/mL

• eq/L

• mol/L

• g/L

Explain the concept of molality.

• Molality is the mass of solute per liter of solution.

• Molality is the volume of solute per volume of solvent.

• Molality is the number of moles of solute per kilogram of solvent.

• Molality is the number of moles of solvent per kilogram of solute.

What is a saturated solution?

• A saturated solution is one that can dissolve any amount of solute regardless of temperature.

• A saturated solution is one that contains no solute at all.

• A saturated solution is one that contains the maximum concentration of solute that can dissolve in a solvent at a specific temperature and pressure.

• A saturated solution is one that has a lower concentration of solute than a concentrated solution.

Describe the Tyndall effect in colloids.

• The Tyndall effect refers to the reflection of light off solid surfaces.

• The Tyndall effect is the scattering of light by colloidal particles, making the light path visible.

• The Tyndall effect is the diffusion of light in gases.

• The Tyndall effect is the absorption of light by colloidal particles.

How does temperature affect the solubility of a substance?

• Gases become more soluble in liquids as temperature increases.

• Temperature generally increases the solubility of solids in liquids and decreases the solubility of gases in liquids.

• Temperature has no effect on solubility.

• Higher temperatures always decrease solubility of solids.

What is the formula for calculating normality?

• N = (grams of solute) / (liters of solution)

• N = (equivalents of solute) / (liters of solution)

• N = (moles of solute) / (liters of solution)

• N = (molarity) x (equivalents of solute)