Measuring Concentration of Solutions and Calculations

The video tutorial explains how to measure the concentration of solutions in both grams and moles per decimeter cubed. It provides examples of calculating concentration using sodium chloride and lithium nitrate. Additionally, it demonstrates how to use the concentration of one solution to determine the concentration of another, using hydrochloric acid and sodium hydroxide as examples.

How is the concentration of a solution calculated in grams per decimeter cubed?

• By dividing the volume by the mass of the solute

• By multiplying the mass of the solute by the volume

• By adding the mass of the solute to the volume

• By dividing the mass of the solute by the volume

What is the concentration in grams per decimeter cubed if 35.2 grams of sodium chloride is dissolved in 2.5 decimeters cubed of water?

• 12.08 grams per decimeter cubed

• 13.08 grams per decimeter cubed

• 14.08 grams per decimeter cubed

• 15.08 grams per decimeter cubed

To calculate concentration in moles per decimeter cubed, what information is needed?

• The temperature of the solution and the volume of the solvent

• The mass of the solute and the volume of the solvent

• The number of moles of solute and the volume of solvent

• The density of the solute and the volume of the solvent

What is the concentration in moles per decimeter cubed if 40 grams of lithium nitrate is dissolved in 1.5 decimeters cubed of water?

• 0.49 moles per decimeter cubed

• 0.59 moles per decimeter cubed

• 0.29 moles per decimeter cubed

• 0.39 moles per decimeter cubed

If 0.50 decimeters cubed of hydrochloric acid reacts completely with 0.068 decimeters cubed of sodium hydroxide, what is the concentration of sodium hydroxide?

• 1.30 moles per decimeter cubed

• 1.20 moles per decimeter cubed

• 1.10 moles per decimeter cubed

• 1.00 moles per decimeter cubed