Question

MOLE CONVERSIONS

1. How many H2O molecules are in 183.2 grams of H2O gas?
2. How much space (L) does 3.614 x 1026 molecules of H2O2 take up?
3. How many molecules are in 3492.5 grams of Mg3(PO4)2?
4. How many grams does 60.2 L of Al(NO3)3 weigh?
5. How many Nmolecules are in 473.2 grams of N ?
6. How many grams does 80.34 L of Hz weigh?
7. How many grams are in 5.39 x 1025 molecules of
Al(OH),?
Stoichiometry and Balancing Chemical Equations
Balance the following chemical reactions
8. _H2 + _N2 => _NH3
9. _58 + _O2 => _SO
10. _Ni(CIO)2 → _NICI + O2
11 _C₂H4
_02 > CO2
H2O
12 _KCIO
_КСІ
0
13 Cu(OH)2 + __HC H302
Cu(C2H2O2)2
14. CH8 + __0
CO ____H20
+
+
+
_H20
15. 76.2 Liters of O2 gas reacts with an excess of Cat STP. How many grams of
CO will be produced?
2C + O2 -> 200
Due in less than 5 minutes

Answer 1

1. 6.116x1024 Molecules of H2O

2. 13400 L

3. 8.001x1024 Molecules of Mg3(PO4)2

4. 572 g.

5. 1.017x1025 Molecules of N2

6. 7.24 g

.7. 6980 g. of Al(OH)3

8. 3H2 + N2 => 2NH3

9. S8 + 8O2 => 8SO2

10. Ni(ClO3)2→ NiCl2 + 3O2

11. C2H4 + 3O2→ 2CO2 + 2H2O

12. 2KClO3→ 2KCl + 3O2

13. Cu(OH)2 + 2HC2H3O2→ Cu(C2H3O2)2 + 2H2O

14. C3H8 + 5O2→ 3CO2 + 4H2O

15. 191 g of CO