## Answers to Both Practice and Quiz Problems

1) Compound 2 or 02
Explanation:
GFW: Compound 1 = 142, Compound 2 = 32
Ratio = 2:19 or 1:9.5
# of moles: Compound 1 = .01211, Compound 2 = .10875
Multiply compound 1 molarity by ratio or 9.5(.01211)
9.5(.01211) > .10875
LR = Compound 2
2) Compound 2 or O2
Explanation:
GFW: Compound 1 = 17, Compound 2 = 32
Ratio = 4:5 or 1:1.25
# of moles: Compound 1 = 4.7588, Compound 2 = 3.375
Multiply compound 1 molarity by ratio or 1.25(4.7588)
1.25(4.7588) > 3.375
LR = Compound 2
3) Compound 1 or N2H4
Explanation:
GFW: Compound 1 = 32, Compound 2 = 34
Ratio = 1:2
# of moles: Compound 1 = .53125, Compound 2 = 1.8323
Multiply compound 1 molarity by ratio or 2(.53125)
2(.53125) < 1.8323
LR = Compound 1
4) Compound 1 or K20
Explanation:
GFW: Compound 1 = 94, Compound 2 = 18
Ratio = 1:1
# of moles: Compound 1 = .9, Compound 2 = 1.1666
Multiply compound 1 molarity by ratio or 1(.9)
1(.9) < 1.1666
LR = Compound 1
5) Compound 2 or CO2
Explanation:
GFW: Compound 1 = 71, Compound 2 = 44
Ratio = 4:2 or 2:1
# of moles: Compound 1 = 1.2169, Compound 2 = .37045
Multiply compound 2 molarity by ratio or 2(.37045)
1.2169 > 2(.37045)
LR = Compound 2
6) Compound 1
Explanation:
GFW: Compound 1 = 88, Compound 2 = 32
Ratio = 1:5
# of moles: Compound 1 = .3545, Compound 2 = 2.318
Multiply compound 1 molarity by ratio or 5(1.7725)
5(1.7725)<.2.318
LR = Compound 1
7) Compound 2
Explanation
GFW: Compound 1 = 16, Compound 2 = 70.9
Ratio = 1:4
# of moles: Compound 1 = 5.1875, Compound 2 = 14.668
Multiply compound 1 molarity by ratio or 4(5.1875)
4(5.1875)>14.668
LR = Compound 2
8) Compound 1
Explanation
GFW: Compound 1 = 54, Compound 2 = 152
Ratio = 2:1
# of moles: Compound 1 = .8111, Compound 2 = 1.532
Multiply compound 2 molarity by ratio or 2(1.532)
.8111<2(1.532)
LR = Compound 1
9) Compound 2
Explanation
GFW: Compound 1 = 31, Compound 2 = 160
Ratio = 2:3 or 1:1.5
# of moles: Compound 1 = 2.232, Compound 2 = 2.156
Multiply compound 1 molarity by ratio or 1.5(2.232)
1.5(2.232)>2.156
LR = Compound 2
10) Compound 1
Explanation
GFW: Compound 1 = 30, Compound 2 = 32
Ratio = 2:1
# of moles: Compound 1 = 1.103, Compound 2 = .85
Multiply compound 2 molarity by ratio or 2(.85)
1.103< 2(.85)
LR = Compound 1
Once you have completely all of the problems, click the picture below to learn about predicted yield