Solutions Practice

The ___ is the thing being dissolved

• solute

• solvent

What is the molarity of a solution which contains 22.41 grams of NaCl in 50.0 mL of solution?

• 0.488 M

• 7.66 M

• 7.67 M

• 0.00767 M

How many grams of solute are dissolved in 125.0 mL of 5.00M NaCl?

• 0.625 g NaCl

• 36.52 g NaCl

• 36.5 g NaCl

• 0.625 mol NaCl

What does it mean if a mixture is homogeneous?

• you can see the different parts

• cannot tell one part from another

• chunks of particles

• made of elements

Solvent is best defined as-

• a mixture in which the substances are spread out evenly between one another and cannot be told apart

• the ability of a substance to dissolve in another substance

• a substance that dissolves in another substance

• a substance into which another substance dissolves

Which answer best defines solute?

• a substance into which another substance dissolves

• a substance that dissolves in another substance

• to form a solution with another substance

• the ability of a substance to dissolve in another substance

How many moles of solute are contained in 3.0 L of a 1.5 M solution?

• 4.5 moles

• 1.5 moles

• 2.0 moles

• 0.5 moles

What is the percent composition of a sugar solution where 10 grams of sugar is added to 100 grams of water?

• .10%

• 0.091%

• 9.090909%

• 9.1%

What mass of solute is needed to make 75.0 g of a 3.4% solution?

• 2.55 g

• 22 g

• 0.05 g

What is unsaturated?

• A solution with more solute than solvent

• A solution with less than the maximum amount of solutes 

• A solution with the  perfect balance of solutes and solvents

• A solution with solids at the bottom