Molarity and Dilutions

True or False? The higher the concentration of a solution the less solute it has in it.

• True

• False

Tags

NGSS.HS-PS1-5

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

Molarity is measured in

• moles per kg
• mols per L
• moles per kJ
• moles per mL

Tags

NGSS.HS-PS1-5

What is the molarity in 650. ml of solution containing 63 grams of sodium chloride?

• 2.4 M
• 0.86 M
• 1.7 M
• 0.54 M

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

• 322.2 M
• 3.1 M
• 0.32 M
• 2.25 M

The ___ is the thing being dissolved

• solute
• solvent

What does the solute dissolve in?

• solvent
• mixture
• solute

How many moles are needed to make 2.5 L of a 3.8 M solution? 

• 9.5 mol
• 0.66 mol
• 1.5 mol
• 15 mol

How many liters of 0.88 M solution can be made with .968 moles of lithium fluoride? 

• 0.87 L
• 29 L
• 1.1 L
• 0.46 L

How many grams of iron (III) bromide are required to make 2.25 L of 1.45 M solution?

• 3.26 moles

• 296 g

• 965.7 g

• 96.3 moles

Tags

NGSS.HS-PS1-7