Section 6.5­6.12 Part III
Title: Mar 6­7:50 PM (1 of 18)
Homework Assignment Solutions
Part A
1. 2 1 2 S
2. 1 6 4 4 C
3. 1 3 2 3 SD
4. 1 6 4 S
5. 2 2 4 1 SD
6. 1 2 2 1 DD
7. 1 6 2 6 DD
8. 2 2 3 D
9. 1 12 8 S
10. 2 3 6 1 DD Title: Feb 12­6:47 PM (2 of 18)
11. 1 4 5 1 DD
12. 1 4 1 2 DD
13. 2 3 1 3 SD
14. 2 1 3 D
15. 2 1 1 2 DD
16. 4 27 20 14 C
17. 1 8 10 16 SD
18. 3 2 1 6 DD
19. 4 3 2 S
20. 8 16 1 D Title: Apr 7­2:22 PM (3 of 18)
Title: Apr 7­2:31 PM (4 of 18)
Title: Apr 7­2:36 PM (5 of 18)
Title: Apr 7­2:38 PM (6 of 18)
Title: Apr 7­2:40 PM (7 of 18)
Title: Apr 7­2:42 PM (8 of 18)
Homework Assignment Solutions
Part B
Title: Feb 12­6:47 PM (9 of 18)
Homework Assignment Solutions
Part C
Title: Feb 12­6:47 PM (10 of 18)
Naming: from names to formula
tricarbon octahydride
sodium chloride
iron(II) nitride
potassium phosphate
hydrosulfuric acid
sulfuric acid
sulfurous acid
Title: Feb 12­6:47 PM (11 of 18)
Title: Apr 7­2:55 PM (12 of 18)
Naming: from names to formula
tricarbon octahydride
H
Title: Feb 12­6:47 PM (13 of 18)
H
H
H
C
C
C
H
H
H
H
Naming: from names to formula
sodium chloride
Title: Feb 12­6:47 PM (14 of 18)
Na
Cl
Naming: from names to formula
iron(II) nitride
Fe
Title: Feb 12­6:47 PM (15 of 18)
Fe
N
N
Fe
Naming: from names to formula
potassium phosphate
O
O
K
P
O
O
K
Title: Feb 12­6:47 PM (16 of 18)
K
Naming: from names to formula
H
hydrosulfuric acid
sulfuric acid
S
H
sulfurous acid
H
O
O
S
H
O
O
O
O
S
O
Title: Feb 12­6:47 PM (17 of 18)
H
H
Naming: from names to formula
acid in name?
no
yes
prefixes/2 non­metals?
hydro in front?
yes
binary acid
no
no
oxyacid
yes
prefixes tell you the number of each element in the final formula. if there is no no
prefix, assume there is 1
check periodic table
ex. disilicon monoxide
roman numeral?
formula will have 2 different formula has H and a elements. One polyatomic ion
will be H. Format will be H2nd element(aq)
ends in "ic"?
ex. hydrobromic acid
yes
check transition metal sheet
Si2O
check charges!
HBr(aq)
yes
no, ends in "ous"
the polyatomic ion will be one that ends in "ate". Format will be HxPolyatomicIon(aq)
ex. bromic acid
the polyatomic ion will be one that ends in "ite". Format will be HxPolyatomicIon(aq)
ex. carbonous acid
HBrO3(aq)
H2CO2(aq)
ex. iron(III) oxide
ex. potassium bromide
Fe+3O2­
Fe2O3
K+1O2­
K2O
the "x" represents a subscript. Check the charges on your polyatomic ions!
Title: Feb 12­6:47 PM (18 of 18)