1.4 Concentration and molarity

A solution is made up of

• solute
• solvent
• solute in a solvent
• solute in a solution

Concentration of a solution is expressed in

• moles
• molar
• molar mass
• molarity

Tags

NGSS.HS-PS1-5

Molarity is

• moles per unit vol (cm³)
• moles per unit vol (dm³)
• moles per unit vol (m³)
• moles per unit vol (mm³)

Unit for molarity

• g/dm³
• m
• g/cm³
• M

Tags

NGSS.HS-PS1-5

If 5 moles solutes added to 1 dm³ of solution, concentration will be

• 5M
• 2M
• 1M
• 1.5M

To prepare 1M of NaOH, you will need a mass of ______g NaOH

• 23g
• 40g
• 4g
• 39g

Tags

NGSS.HS-PS1-7

To prepare 2.5M of NaOH, you will need a mass of ______g NaOH

• 10g
• 100g
• 40g
• 80g

Tags

NGSS.HS-PS1-7

If I added 120g of NaOH into 1 dm³ of solution the molarity will be

• 2M
• 3M
• 120M
• 40M

To prepare 2M of NaCI in 1 dm³, you will need ___g NaCI

• 40g
• 58g
• 116g
• 580g

0.25 dm³ contains 0.4 mol NaOH. Find its molarity.

• 0.1M
• 1.6M
• 0.4M
• 0.625M