Solution, Solubility Curves, Molarity and Molality

What is the molarity of a 0.5L sample of a solution that contains 60.0 g of sodium hydroxide (NaOH)

• 0.8 M

• 1.5M

• 3.0M

• 6.0M

A student is preparing solutions for a laboratory experiment by dissolving solid solutes in liquid solvents. Which action will increase the rate of solubility

• lowering the temperature of the solvent

• stirring the solute in the solution

• increasing the particle size of the solute

Tags

NGSS.HS-PS1-5

A solution is a

• heterogeneous mixture

• homogeneous mixture

• heavy mixture

• horrific mixture

Which of the following is the correct formula for calculating molarity?

• moles/liters of solution

• moles/kg of solvent

• # particles/Avogadro's #

• theoretical yield/actual yield

Tags

NGSS.HS-PS1-5

Which of the following types of solutions has more room to dissolve solute?

• supersaturated

• saturated

• unsaturated

When calculating molarity,whichof the following are included in the calculation?

• moles of solute

• molar mass of solution

• liters of solution

• moles solvent

What is the molarity of a solution in which 3.0 moles of NaCl is dissolved in 1.5 L of water?

• 4.5 M

• 2 M

• 1.35 M

• 1.5 M

What is a solvent?

• The substance that does the dissolving in a solution.
• The substance that is being dissolved in a solution.
• The mixing of different substances.
• The process in which neutral molecules lose or gain electrons

The concentration of a mixture can be increased in which of the following ways?

• Heating the mixture
• Adding more water “solvent”
• Adding more powder “solute”
• Stirring the mixture