CHEMISTRY FEB. 15 & 16, 2018

OBJECTIVE: Students will show to use the mole to measure the mass of a compound.

W.O.D. Maxim-a common saying of advice or virtue

WARM-UP
1. Define molar mass and describe using an example, how to calculate the molar mass of a compound. 

CW
Complete post-test for chemistry

Practice problems on calculating molar mass & mole-mass problems

Calculate the molar mass of each of the following (notebooks)

PCl3

NaHCO3

C20H42

Fe(OH)2

N2O3

Mg3(PO4)2

Ba(NO3)2

Carbon tetrafluoride

Lithium

Molecule of nitrogen

How many moles are in

45g PCl3

250g NaHCO3

84g C20H42

2 x 103 g Fe(OH)2

4.5 x 102 g N2O3

What is the mass of

2 moles Mg3(PO4)2

3.5 moles Ba(NO3)2

0.14 moles carbon tetrafluoride

2.4 x 10-3 moles lithium

25 moles NaCl