Unit 9.3

When you make a dilution, which of these values remains constant?

• The molarity (M)

• The total moles of solute

• The volume (V)

• The concentration

How do we make a dilution?

• Add more solute

• Remove solute

• Remove solvent

• Add more solvent

A solution that has water as the solvent is called a(n).....

• Aqueous Solution

• Water-Based Solution

• Organic Solution

• Dilute Solution

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

How many L of stock solution of 2 M NaCl do you need to prepare 1 L of 1 M NaCl?

• 10 L

• 1 L

• 5 L

• 2 L

• 0.5 L

How many L of 1.0M KBr solution would you use up to prepare 1 L of a 0.5 M dilution?

• 1 L

• 2 L

• 5 L

• 0.5 L

You are adding a chlorine solution to a swimming pool. The stock solution of chlorine is 10 M. Your swimming pool (700 L) needs to be at a concentration of 0.5 M. How much of the stock solution should you add?

• 35 L

• .35 L

• 3.5 L

• 7.5 L

The term molar, which describes a solution's concentration, is written as?

• M

• mol

• g

• g/L

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

Tags

NGSS.HS-PS1-5

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

• dilution

• concentration

• saturated solution

• supersaturated mixture

Tags

NGSS.HS-PS1-5