Solutions Unit Test

Front

What is a solubility curve?

Back

A graph that shows the relationship between the solubility of a substance and temperature, indicating how much solute can dissolve in a solvent at various temperatures.

Front

What is the general trend of solubility for most solids with temperature?

Back

Most solids increase in solubility as temperature increases.

Front

How does the solubility of gases change with temperature?

Back

Gases are generally less soluble in liquids at higher temperatures.

Front

What does it mean that different substances have unique solubility curves?

Back

Each substance has a specific solubility pattern that varies with temperature, indicating that solubility is not the same for all substances.

Front

How do you calculate the volume of a concentrated solution needed to prepare a diluted solution?

Back

Use the formula: C1V1 = C2V2, where C1 and V1 are the concentration and volume of the concentrated solution, and C2 and V2 are the concentration and volume of the diluted solution.

Front

If you have a 3.00 M solution of NaCl, how do you find the number of moles in a given volume?

Back

Use the formula: Moles = Molarity x Volume (in liters). For 1.50 liters, Moles = 3.00 M x 1.50 L = 4.50 moles.

Front

What is molarity?

Back

Molarity (M) is a measure of concentration defined as the number of moles of solute per liter of solution.

Front

How do you calculate the molarity of a solution?

Back

Molarity = Moles of solute / Volume of solution (in liters).

Front

What is the molar mass of Na2SO4?

Back

The molar mass of Na2SO4 is 142.04 g/mol.

Front

How do you convert grams of a solute to moles?

Back

Use the formula: Moles = Mass (in grams) / Molar mass (g/mol).