03-24-25

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

Molarity is ...

• grams of solute/deciliters of solvent.

• grams of solute/liters of solution.

• moles of solute/liters of solution.

• moles of solute/milliliters of solvent.

Tags

NGSS.HS-PS1-5

2 moles of H₂O would weigh ____ grams

• 18 grams

• 9 grams

• 36 grams

• 2 grams

Tags

NGSS.HS-PS1-7

What is the molarity of a solution made by diluting 26.5 mL of 6.00M HNO₃ to a volume of 250 mL?

• 15.9 M
• 0.636 M
• 0.642 M
• 1.59 M

What is the molarity of a solution made by adding 1.565 moles of PbNO₃ to 500 mL?

• 300. M
• 31.3 M
• 3.13 M
• 1.56 M

Which sweet tea would you expect to taste the sweetest?

• 1M
• 3M
• 3.1M
• 2.5M

Tags

NGSS.HS-PS1-5

If you have 34 mL of a 0.5 M NaBr solution, what will the concentration be if 56 mL of water is added to it?

• .188 M

• 3.78 M

• .389 M

• 1.76 M

How do chemists describe the "strength" or concentration of a solution?

• molarity

• concentrated

• diluted

• strong

Tags

NGSS.HS-PS1-5

What is the molarity of 0.50 moles of NaCl in 0.25 L of solution?

• 1.0 M

• 0.5 M

• 2.0 M

• 1.5 M

Tags

NGSS.HS-PS1-5

Determine the molarity of 2.25 moles of sulfuric acid, H₂SO₄, dissolved in 725 mL of solution.

• 322 M

• 3.10 M

• 0.325 M

• 2.25 M

Tags

NGSS.HS-PS1-5