Name: Chapter 10 Worksheet
Molar Mass of Compounds
Calculate the Molar Mass for the
following compounds. Show all your work.
1. Cs!
9. Mg(CIO)2
2. CaHPO
10. Al(SO4),
3. C12H2011
11. Fe(OH)
4. 12
12. SnCl2
5. HCHOI
13. P.010
6. Mg,(PO4)2
14. ICI
7. NaHCO,
8. CeB

(newtons first law)

conservation of momentum law states :

momentum before collision = momentum after collision

momentum p (kg-m/s)= mass * velocity

say moving car=1 000 kg, velocity = 10 m/s then p = 1 000*10= 10 000 kg-m/s

say still car = 2 000 kg, velocity = 0 m/s then p = 2 000* 0 = 0 kg-m/s

total momentum prior to collision = 10 000 + 0 = 10 000 kg-m/s

momentum after collision = 10 000 kg-m/s

mass now = 1 000 kg+2 000 kg = 3 000 kg

10 000 = 3 000 kg* velocity m/s

10 000/3 000 = velocity

3.33 m/s = velocity after collision

an impulse is a force applied over time , momentum is exclusive of external forces and a perfect collision is implied