Concentrations & Dilutions Quiz

The amount of solute dissolved in a given amount of solvent.

• dilution

• concentration

• saturated solution

• supersaturated mixture

• none are correct

Tags

NGSS.HS-PS1-5

What does it mean to dilute a solution?

• lower the concentration of solute per solvent

• increase the concentration of solute per solvent

• increase the amount of solute in solvent

• decrease the amount of solvent

• none are correct

Tags

NGSS.HS-PS1-5

You can make a solution more concentrated by adding __________.

• solute

• solvent

• water

• liquid

• none are correct

Tags

NGSS.HS-PS1-5

As we dilute a solution.....

• The volume increases and the molarity (M) increases

• The volume increases and the molarity (M) decreases

• The volume decreases and the molarity (M) increases

• The volume decreases and the molarity (M) decreases

• none are correct

Tags

NGSS.HS-PS1-5

How many mL of stock solution of 2 M NaCl do you need to prepare 100 mL of 0.150M NaCl?

• 7.5 mL

• 15 mL

• 1333 mL

• 200 mL

• none are correct

Calculate the Molarity in a solution containing 40.0 g of NaCl dissolved in 500.0 mL of H₂O.

• 0.08 M

• 12.5 M

• 1.37 M

• 0.74 M

• none are correct

If I have 340 mL of a 0.5 M NaBr solution, what will the concentration be if I add 560 mL more water to it?

• .188 M

• 3.78 M

• .389 M

• 1.76 M

• none are correct

How many mL of 10.8 M HCl are required to make 100.0 mL of 3.00 M acid?

• 27.8 mL

• .278 mL

• 2.8 mL

• 278 mL

• none are correct

Tags

NGSS.HS-PS1-7

How many moles of solute are present in 50.0 mL of 0.20 M KNO₃?

• 10.0 moles solute

• 0.05 moles solute

• 1.00 moles solute

• 0.01 moles solute

• none are correct

What is the molarity of 4 grams of sodium chloride (NaCl) in 3,800 mL of solution?

• 0.018 M

• 0.018 m

• 1.052 M

• 1.052 m

• none are correct