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Part 2 Final Exam Review–Chemistry Flashcards | StudBud
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Part 2 Final Exam Review–Chemistry
Part 2 Final Exam Review–Chemistry
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Final exam review for College Prep Chemistry
Flashcards
22 cards
F
Practice quiz
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Host live
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Questions
22
Answers
1
In the reaction 2CO + O
2
--> 2CO
2
what is the ratio of moles of oxygen to moles to CO
2
?
1:1
2:1
2:2
1:2
2
Given the equation 2 H
2
+ O
2
--> 2H
2
O ........
8.15 L
4.075 L
8.15 mL
19.30 L
3
How many moles of aluminum are needed to react completely with 1.2 mol of FeO? (*mole ratio*)
0.8 mole
2.4 mol
1.6 mol
1.2 mole
4
Nitrogen trichloride has the following VSEPR shape:
trigonal planar
tetrahedral
bent
trigonal pyramidal
5
What is % yield if 6.7 g PbO is produced theoretically, but experiment gives only 5.5 g of PbO?
82%
67%
44%
56%
6
If pressure of a gas is increased and volume is constant, what will happen to temperature?
decrease
stay the same
increase
7
What are standard temperature and pressure conditions for gases?
0 K and 760 mmHg
-273°C and 1 atm
0°C and 760 mmHg
0° and 0 atm
8
Given the reaction 2H
2
+ O
2
--> 2 H
2
O .......
110 L
19.25 L
61 L
77 L
9
How much PH
3
is formed if you have 6.2 g of P
4
and excess H
2
: P
4
+ 6H
2
--> 4PH
3
.43 g
6.8 g
270 g
45 g
10
One way to increase the pressure of a gas is to
lower the kinetic energy of gas molecules
increase volume
decrease temperature
increase the number of gas particles
11
How many grams of O
2
are produced if 11.5 g NO
2
are formed? 2Pb(NO
3
)
2
--> 2PbO + 4NO
2
+ O
2
1.00 g
2.88 g
2.00 g
32.0 g
12
2 Al + 3 CuSO
4
--> Al
2
(SO
4
)
3
+ 3 Cu [how many grams of Cu form from reaction of 51g of Al?]
2.8 g
0.045 g
81 g
180 g
13
If pressure is constant, the relationship between temperature and volume is
direct
inverse
14
If 3.0 L of helium at 20.0° C is allowed to expant to 4.4 L, what is the new temperature?
157°C
702°C
430°C
-30°C
15
CH
4
+ 2 O
2
--> 2 H
2
O + CO
2
[16 g of CH
4
reacts and actually produces 41g CO
2
. What is % yield?]
39%
93%
1.1%
2.6%
16
Carbon Monoxide has the following VSEPR shape
bent
linear
trigonal planar
tetrahedral
17
Answer the following gas law problem
.0658 kPa
.0329 kPa
.0658 atm
.0329 atm
18
Which statement is true if 12 mol of CO and 12 mol of Fe
2
O
3
react? 3CO + Fe
2
O
3
--> 2Fe + 3CO
2
the limiting reactant is CO and 8.0 mol of Fe will be formed
The limitng reactant is Fe2O3 and 36 mol of CO2 will form
The limiting reactant is Fe2O3 and 24 mol of Fe will form
the limiting reactant is CO and 3.0 mol of CO2 will form
19
At STP, how many liters of oxygen will react with 3.6 liters of hydrogen? 2H
2
+ O
2
--> 2H
2
O
1.8 L
2.4 L
3.6 L
2.0 L
20
If temperature is constant, the relationship between pressure and volume is
direct
inverse
21
2 H
2
+ O
2
--> 2 H
2
O [what mass of water is produced from 2.0 mol of H
2
]
32 g
36 g
9 g
18 g
22
Carbon dioxide has the following VSEPR shape and polarity
Linear, polar
Bent, Non-polar
Linear, Non-polar
Bent, non-polar
