Electrolytes

Electrolytes

by Manal Sharaf

Multiple Choice

Which diagram best illustrates the ion-molecule attractions that occur when the ions of NaCl(s) are added to water?

• 1

• 2

• 3

• 4

Multiple Choice

A substance that conducts an electrical current when dissolved in water is called

• catalyst

• metalloid

• electrolyte

• nonelectrolyte

Multiple Choice

A solid substance was tested in the laboratory. The test results are listed below.

• dissolves in water

• is an electrolyte

• melts at a high temperature

Based on these results, the solid substance could be

• Cu

• CuBr₂

• C

• C₆H₁₂O₆

Multiple Choice

As water is added to a 0.10 M NaCl aqueous solution, the conductivity of the resulting solution

• decreases because the concentration of ions decreases

• decreases, but the concentration of ions remains the same

• increases because the concentration of ions decreases

• increases, but the concentration of ions remains the same

Multiple Choice

Which of the following solutes will result in a solution with the strongest conductivity?

• 1.0 M C₆H₁₂O₆

• 1.0 M MgBr₂

• 2.0 M NaCl

• 2.0 M CaF₂

Multiple Choice

Which of the following is not an electrolyte?

• KBr

• LiOH

• RbNO₃

• CH₄