Mole conversions

12
#7.5 Aim: How do we use moles to count atoms? Agenda QOD (5) Lesson: mole conversio ns (5) Activity: Mole conversio ns (25) Closing (5) HW #8 Mole conversions QOD: Show a numerical set-up for calculating the answer to this problem. How many grams are present in 2 mol of NaNO 3 ?

description

Mole conversions. QOD: Show a numerical set-up for calculating the answer to this problem. How many grams are present in 2 mol of NaNO 3 ?. Remember from yesterday…. Conversions in chemistry. Use a conversion factor that equals 1 (because we can always multiply anything that equals 1!) - PowerPoint PPT Presentation

Transcript of Mole conversions

Page 1: Mole  conversions

#7.5 Aim:How do we use moles to count atoms?

Agenda

QOD (5)

Lesson: mole

conversions (5)

Activity:Mole

conversions (25)

Closing (5)

HW #8

Mole conversions

QOD: Show a numerical set-up for calculating the answer to this

problem.

How many grams are present in 2 mol of NaNO3?

Page 2: Mole  conversions

#7.5 Aim:How do we use moles to count atoms?

Agenda

QOD (5)

Lesson: mole

conversions (5)

Activity:Mole

conversions (25)

Closing (5)

HW #8

Conversions in chemistry

Use a conversion factor that equals 1 (because we can always multiply anything that equals 1!)

When do you divide by the gram-formula mass? When do you multiply?

Remember from yesterday…

Page 3: Mole  conversions

#7.5 Aim:How do we use moles to count atoms?

Agenda

QOD (5)

Lesson: mole

conversions (5)

Activity:Mole

conversions (25)

Closing (5)

HW #8

When you want moles…? Mol = grams x 1 mol

Gram-formula

mass

Review from yesterday…

Page 4: Mole  conversions

#7.5 Aim:How do we use moles to count atoms?

Agenda

QOD (5)

Lesson: mole

conversions (5)

Activity:Mole

conversions (25)

Closing (5)

HW #8

When you want grams…? Grams = mol x Gram-

formula mass1 mole

Page 5: Mole  conversions

#7.5 Aim:How do we use moles to count atoms?

Agenda

QOD (5)

Lesson: mole

conversions (5)

Activity:Mole

conversions (25)

Closing (5)

HW #8

What is the mass of 4.5 mol of KOH?

Page 6: Mole  conversions

#7.5 Aim:How do we use moles to count atoms?

Agenda

QOD (5)

Lesson: mole

conversions (5)

Activity:Mole

conversions (25)

Closing (5)

HW #8

How many grams of oxygen present in 9.0 mol of KOH?

Page 7: Mole  conversions

#7.5 Aim:How do we use moles to count atoms?

Agenda

QOD (5)

Lesson: mole

conversions (5)

Activity:Mole

conversions (25)

Closing (5)

HW #8

Activity: Mole conversions

Work with your group-mates to finish the practice we started yesterday. If you finish early, start your HW!

Page 8: Mole  conversions

#7.5 Aim:How do we use moles to count atoms?

Agenda

QOD (5)

Lesson: mole

conversions (5)

Activity:Mole

conversions (25)

Closing (5)

HW #8

“If you want the moles, and you have the mass, you

gotta *clap* divide by the gram-formula mass”

Page 9: Mole  conversions

#7.5 Aim:How do we use moles to count atoms?

Agenda

QOD (5)

Lesson: mole

conversions (5)

Activity:Mole

conversions (25)

Closing (5)

HW #8

Which table group can sing it best?

Volume counts!

Accuracy counts!

Group participation counts!

Prize: extra-credit point on Friday’s quiz

Contest:

Page 10: Mole  conversions

#7.5 Aim:How do we use moles to count atoms?

Agenda

QOD (5)

Lesson: mole

conversions (5)

Activity:Mole

conversions (25)

Closing (5)

HW #8

“If you want the moles, and you have the mass, you

gotta *clap* divide by the gram-formula mass”

Page 11: Mole  conversions

#7.5 Aim:How do we use moles to count atoms?

Agenda

QOD (5)

Lesson: mole

conversions (5)

Activity:Mole

conversions (25)

Closing (5)

HW #8

Announcement: Quiz #2 – Moles! tomorrow

Ms. B-Law is collecting: HW #5 – 8, last week’s QOD

Page 12: Mole  conversions

#7.5 Aim:How do we use moles to count atoms?

Agenda

QOD (5)

Lesson: mole

conversions (5)

Activity:Mole

conversions (25)

Closing (5)

HW #8

Closing:

Think: how would you set-up this problem numerically?

What is the mass of 2.8 mol of water?