1. WARM-UP 2/20/15
You will need a calculator (no phone) today. If you need one, trade something for one.
If you measured the mass of the beaker with the sample of copper to be 41.7 g and the mass of the beaker by itself was 4.9 g, what is the mass of the sample?
How many moles of copper are there in this sample?

2. Calculate moles from atoms and atoms from moles
2/20/15 Objective
Calculate moles from atoms and atoms from moles
2/20/15 Agenda
Warm-up
Calculator Practice
Moles and Atoms
Independent Work Time

3. Calculator Practice
Put into calculator:
93 x 4.24 x 1032
Put into calculator:
9.28 x 1023
6.02 x 1023

4. Molar Mass Lab – 1st Chart
Compound
Chemical Formula
Molar Mass 1
Sodium hydroxide
NaOH
g/mol 2
Zinc (II) nitrate 3
Copper 4
Iron 5
Sodium iodide 6
Copper (II) nitrate 7
Potassium chlorate 8
Lead (II) nitrate 9
Zinc 10
Sodium nitrate

5. Molar Mass Lab – 2nd Chart
Chemical Formula
Beaker Mass (g)
Measured Mass (g)
Compound Mass (g)
Moles of Compound
NaOH
5.92

6. Measuring Matter II worksheet Molar Mass Lab charts (2)
End of Class
Measuring Matter II worksheet
Molar Mass Lab charts (2)
3) Chemical Reactions Checklist
Resubmit by Friday 2/20/15