Chemical
Reactions &
The mole
10.04 & 10.05
Chemistry Ms. Boon
Catalyst
Objective: I can

How many molecules are in 2 moles of H2O?

How many atoms are in 2 moles of H2O?

2 mol x 6.02 x 1023 molecules = 12.04 x 1023
1 mol

Then, for the second question, first we find the number
of atoms in a molecule of water. There are 3.

Then, this means that for every mole of water there are
3 moles of atoms. To get the final answer, multiply the
answer from number 1 by 3.

3 x 12.04 x 1023 = 36.12 x 1023 atoms
balance chemical
equations.
Agenda:
• Catalyst
• Bubble Gum Lab
• Mole Quiz #2 &
Chemical Reactions
Bubble Gum!

Focus Question: What does bubble gum
have to do with chemistry?

http://www.youtube.com/watch?feature=ends
creen&NR=1&v=gCnOmYsAiPU
Objective: I can
balance chemical
equations.
Agenda:
• Catalyst
• Bubble Gum Lab
• Mole Quiz #2 &
Chemical Reactions
Homework Review

What is the molar mass of sucrose
(C12H22O11)?

Answer:




C= 12 x 12 = 144 g
H = 1 x 22 = 22 g
O = 16 x 11 = 176 g
Total mass = 342 g/mol
Objective: I can
balance chemical
equations.
Agenda:
• Catalyst
• Bubble Gum Lab
• Mole Quiz #2 &
Chemical Reactions
Homework Review

2) What is the mass of 2 moles sucrose?

Answer: 2 mol x 342 g/mol = 684 g

3) You have 5 g sucrose, how many moles
do you have?

Answer: (5 g) x 1 mol = 0.015 mol
342 g
Objective: I can
Bubble Gum Lab
balance chemical
equations.

Groups of 4 or 5 at your table

Review and assign group roles (5 min)

Read and complete Pre-Lab Questions (5
min)

Read and complete Laboratory Question,
Safety Precautions, Materials (5 min)

Procedure! Read entire procedure and
review the data tables with your group
before you begin. (7 min)

Complete lab and collect data. (20 min)

After completing your data collection and
analysis, check your work with Ms. Boon
and then pick up the post lab questions.
Agenda:
• Catalyst
• Bubble Gum Lab
• Mole Quiz #2 &
Chemical Reactions
Objective: I can
balance chemical
equations.
Agenda:
• Catalyst
• Bubble Gum Lab
• Mole Quiz #2 &
Chemical Reactions
Mole Quiz #2 and Chemical
Reactions Quiz

Ms. Boon will pass out your Mole Quiz #1
answer sheet.

If you scored 0/5, 1/5, 2/5 or 3/5, redo the
section. Choose at least 3 new questions
that you did not attempt before.

All answers will be written in the answer
sheet.

Complete the entire Chemical Reactions
Quiz. Fill in your answers on the answer
sheet.