What is the formation enthalpy of CO2?

Not listed/Need a formation energy chart

What is the formation enthalpy of H2O?

Not listed/Need a formation energy chart

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Pre-AICE Chemistry Final Review - Perez 24-25

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Well, this is the end. I've put together all of his Quizs into this. Hopefully I can blow up the lab another year. Farewell, everyone.

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Questions 99

Answers

1
What is the heat needed to increase the temperature of 22g of water, by 22 degree Celsius? (Water Specific Heat = 4.184)
4,556
3,674
2,025
1,748
2
You are looking at a EUROPEAN Food Label and there's no Calories. It says Energy = 800kJ. How many Calories is this?
4.184
3347
191
800
3
A ball has an initial Pressure of 3 atm, volume of 5L, and temp of 200K. Find the new Temp. if the P2=30atm & V2=3L
1800
1500
900
1200
4
88 grams of water are heated on the stove.4128J's of heat energy is added.How many degrees in temperature will be added?
8
10
11
9
5
What is the formation enthalpy of CO₂?
0
Not listed/Need a formation energy chart
6
The following letters are fictious elements in a Hess Law Question. Find the NET equation (Simplify the equation).
A + G --> B
2A + B --> G
B + F --> A
A + F -->
7
A ball has an initial Pressure of 10 atm, volume of 7L, and temp of 200K. Find the new pressure if the V2 =2L & T2=1000K
185
165
155
175
8
To find the energy of an object that is in the air and not moving you would use _______.
1/2mv2
mgh
mCΔT
ΔG = ΔH - TΔS
9
What is the heat needed to increase the temperature of 9g of water, by 1 degree Celsius? (Water Specific Heat = 4.184)
38
4.184
29
23
10
Find the [H⁺] of a solution with a pH of 7.5
3.16 x 10-8
6.31 x 10-5
7.44 x 10-5
8.42 x 10-5
11
Equilibrium is defined by what letter which is a constant?
D
K
V
E
12
P is constant. Find the new volume in a 1L water bottle if the temperature is decreased from 298K to 273K
0.58L
0.92L
1.33L
1.44L
13
300 grams of LiF dissolved in 322mL's of solvent has a Molarity of _______. (Li = 7g and F = 19g)
39.2
35.8
41.1
31.7
14
To find the energy of an object that is moving and on the ground you would use _______.
mCΔT
1/2mv2
mgh
ΔG = ΔH - TΔS
15
The following organic line structure represents what compound?
C5H12
C5H5
C5H10
C5H14
16
What is the pressure at STP in atm?
1
273
0
101,325
17
P is constant. Find the new volume in a 2L water bottle if the temperature is increased from 200K to 298K
2.68L
2.81L
2.57L
2.98L
18
To find the heat energy of a reaction based on its heat capacity you would use _______.
mgh
mCΔT
1/2mv2
ΔG = ΔH - TΔS
19
What is the formation enthalpy of F₂?
Not listed/Need a formation energy chart
0
20
Photosynthesis is an example of a _________ process.
Spontaneous
Non-Spontaneous
21
The Kb of Acetic Acid (CH₃COOH) is 5.56 x 10^-10. If the concentration is 0.825M find the pOH of the acid.
13.9
0.0835
2.41
11.59
22
What is the [H⁺] of 0.800M H₂SO₄?
0.800
-0.204
1.60
0.097
23
T is constant. Find the new pressure of a 10 atm cannon ball if volume is decreased from 50L to 10L.
2
55
60
50
24
What is the formation enthalpy of H₂O?
0
Not listed/Need a formation energy chart
25
Wood burning is an example of a _________ process.
Non-Spontaneous
Spontaneous
26
Ice melting at STP is an example of a _________ process.
Non-Spontaneous
Spontaneous
27
If the pOH is 4.4, find the [OH^-].
5.13 x 10-5
3.98 x 10-5
4.59 x 10-5
2.21 x 10-5
28
Ice Freezing at STP is an example of a _________ process.
Spontaneous
Non-Spontaneous
29
What is the pOH of 3.25 x 10^-8 M of HCl
-7.5
6.5
7.5
-6.5
30
47 grams of water are heated on the stove from 28C to 55C. How much heat energy was added to the water by the stove.
4981J
5309J
5722J
6147J
31
What is the name of the following functional group:
Carboxyl
Amino
Carboxyl
Hydroxyl
32
The 2nd Law of thermodynamics is __________.
Entropy becomes zero as temperature reaches absolute zero
Entropy tends to increase
What goes into motion stays in motion
Energy can neither be created nor destroyed
33
You are looking at a EUROPEAN Food Label and there's no Calories. It says Energy = 33.47kJ. How many Calories is this?
140
4
8
6
34
What is the [H⁺] of 0.800M HCl?
0.800
0.400
1.60
0.097
35
Find the pH of 1.5 x 10^-4M HCl.
10.5
2.5
3.82
9.5
36
The following organic line structure represents what compound?
C4H4
C4H6
C4H10
C4H8
37
What is the pH of 4.5 x 10^-8M CH₃COOH (Acetic Acid) ?
7.35
6.35
8.35
The Ka is needed.
38
Ka = 8.81 x 10^-7 Find K_b
2.58 x 10-8
1.13 x 10-8
7.57 x 10-8
6.58 x 10-4
39
A ball has an initial Pressure of 5 atm, volume of 5L, and temp of 500K. Find the new volume if the P2=6atm & T2=100K
0.83
1.23
1.43
1.03
40
The following organic line structure represents what compound?
C2H4
CH6
C2H6
CH4
41
A ball has an initial Pressure of 5 atm, volume of 5L, and temp of 500K. Find the new volume if the P2=6atm & T2=100K
1.03
1.23
1.43
0.83
42
Find the pH of 0.005M of NaOH.
-11.7
11.7
12.7
-12.7
43
Water vapor condensing at STP is an example of a _________ process.
Spontaneous
Non-Spontaneous
44
A mars space balloon is collecting oxygen. The pressure in the balloon is 5 atm. Volume is 2L.Temp is 300K.Find moles(n)
0.61
0.41
0.51
0.31
45
Find the pOH of 3.2 x 10^-5M of H₂SO₄. The Ka of H₂SO₄ is 1.0 x 10². (Hint: Does the Ka matter for Strong Acids/Bases?)
9.5
9.8
4.19
4.49
46
7 grams of water are heated on the stove from 0C to 7C. How much heat energy was added to the water by the stove.
210
205
215
220
47
142mL of HCl is titrated with .620M NaOH. After 71.93mL is added the equivalence point is reached. Find the [M] of HCl.
.529
.412
0.384
0.314
48
What is the pH of 4.5 x 10^-8M HBr?
8.35
7.35
9.35
6.35
49
According to Hess's Law what happens to ΔH_rxn = -472kJ if you change 2H₂+ O₂ --> 2H₂O into 4H₂ + 2O₂ --> 4H₂O?
+572kj
-572kj
-944kj
-1144kj
50
Temperature is constant. Find the new volume in a 5L balloon if the pressure is increased from 3 atm to 5 atm.
3L
5L
4L
2L
51
A mars space balloon is collecting oxygen. The pressure in the balloon is 5 atm. Volume is 2L.Temp is 300K.Find moles(n)
0.31
0.41
0.61
0.51
52
You are looking at an AMERICAN Food Label.It says Calories=100. How many Kilojoules would be listed on a European label?
627.6
23.9
4.184
418.4
53
Find the reaction enthalpy using formation enthalpies for 2H₂ + O₂ --> 2H₂O Given: ΔHf of H₂O = -285 kJ
570
285
-570
-285
54
If the pOH is 8.1, find the [OH^-].
7.87 x 10-9
3.41 x 10-9
7.94 x 10-9
9.12 x 10-9
55
785 kilograms of LiF dissolved in 444mL's of solvent has a Molarity of _______. (Li = 7g and F = 19g)
6801
680000001
68.001
68001M
56
According to Hess's Law what happens to ΔH_rxn = -572kJ if you change 2H₂+ O₂ --> 2H₂O into 8H₂ + 4O₂ --> 8H₂O?
+1144kj
-572kj
-2288kj
-5274kj
57
What is the formation enthalpy of H₂?
Not listed/Need a formation energy chart
0
58
The 3rd Law of thermodynamics is __________.
Entropy tends to increase
What goes into motion stays in motion
Entropy becomes zero as temperature reaches absolute zero
Energy can neither be created nor destroyed
59
Find the rate for experiment #4 assuming the rate constant k = 322.5 (Hint: find the rate law first).
4.16
5.32
5.16
4.32
60
Besides Hess Law, what formula can be used to find reaction enthalpy, if you know the formation enthalpies?
Products - Reactants
ΔG = ΔH - TΔS
Products + Reactants
Reactants - Products
61
What is the name of the following functional group which is also known as the ketone group:
Carboxyl
Hydroxyl
Amino
Carbonyl
62
What is the formation enthalpy of C₆H₁₂O₆(glucose)?
Not listed/Need a formation energy chart
0
63
A ball has an initial Pressure of 10 atm, volume of 7L, and temp of 200K. Find the new pressure if the V2 =2L & T2=1000K
155
165
175
185
64
If the pH is 4.4, find the [H⁺].
3.98 x 10-5
4.59 x 10-5
2.21 x 10-5
5.13 x 10-5
65
T is constant. Find the new pressure in a balloon with 3 atm of pressure if the volume is increased from 7L to 14L.
3 atm
4 atm
5.5 atm
1.5 atm
66
CH3COOH + NaOH --> NaCH3COO + H2O. In this reaction CH3COOH is the _________.
Acid
Conjugate Base
Base
Conjugate Acid
67
You are looking at an AMERICAN Food Label.It says Calories=150. How many Kilojoules would be listed on a European label?
150
35.85
627.6
4.184
68
A ball has an initial Pressure of 3 atm, volume of 5L, and temp of 200K. Find the new Temp. if the P2=30atm & V2=3L
1800
900
1500
1200
69
To find the free energy of a reaction based on its entropy, temperature, and enthalpy you would use _______.
1/2mv2
mgh
mCΔT
ΔG = ΔH - TΔS
70
Water boiling at STP is an example of a _________ process.
Spontaneous
Non-Spontaneous
71
Rusting is an example of a _________ process.
Non-Spontaneous
Spontaneous
72
Newton's 1st Law of Motion is _________. (Physics question just for fun)
Entropy tends to increase
What goes into motion stays in motion
Energy can neither be created nor destroyed
Entropy becomes zero as temperature reaches absolute zero
73
Find the rate law for the following data table.
Rate = k[H2O2]2[I-][H+]0
Rate = k[H2O2]2[I-][H+]
Rate = k[H2O2]0[I-]2[H+]
Rate = k[H2O2][I-][H+]0
74
An earth space balloon is collecting oxygen gas at STP. Volume is 2L.Find moles(n)
0.09
0.01
0.05
0.03
75
A dog rolling down a ramp at 15 m/s. The dog has a mass of 50 kilograms. The dog is 7 meters in height.Find TOTAL energy
3433.5J
9058.5
101,325
5625
76
Find the enthalpy for CH₄ + 2O₂ -->CO₂ + 2H₂O Given: ΔHf of H₂O= -285kJ/mol&ΔHf of CO₂= -393kj/mol&ΔHf of CH₄= -76kj/mol
-570
-678
-383
-887
77
Organic Chemistry is based on the study of what element?
Nitrogen
Oxygen
Helium
Carbon
78
An earth space balloon is collecting oxygen gas at STP. Volume is 2L.Find moles(n)
0.09
0.03
0.01
0.05
79
The pH of a solution is 2.4 ---- What is the concentration of [H+].
2.21 x 10-3
0.44 x 10-3
1.74 x 10-3
3.98 x 10-3
80
Which of the following formulas represents Boyle's Law?
P1V1/T1 = P2V2/T2
V1/T1 = V2/T2
P1V1 = P2V2
P1/T1 = P2/T2
81
Which of the following is a strong acid?
CH3COOH
NaOH
H2SO4
LiOH
82
A mars space balloon is collecting oxygen gas. The pressure = 250kPa. Volume is 8L.Temp is 20C. Find grams of O₂
44
39
21
26
83
An unknown mass of water received 750J of energy. It increased from 10C to 25C. Find the mass(Water Specific Heat=4.184)
15
18
9
12
84
What is the heat needed to increase the temperature of 1g of water, by 1 degree Celsius? (Water Specific Heat = 4.184)
273
1
4.184
2
85
Amino acids consist primarily of which groups?
Hydroxyl
Carbonyl
Amino
More than one of the choices
86
Find the order of the following reactant.
1st
Zero
2nd
3rd
87
If Gibbs Free Energy is a positive number then the reaction is likely
Non-Spontaneous
Spontaneous
88
What is the temperature at STP in Kelvin?
1
0
100
273
89
A reaction is performed and using 0.25 moles of fuel,500kJ of energy is released. What is the reaction's molar enthalpy?
2500kj
3500kj
500kj
2000kj
90
If Gibbs Free Energy is a negative number then the reaction is likely
Non-Spontaneous
Spontaneous
91
Calculate the volume at STP that 5.5 kg of CH₄ (Methane Gas) will occupy at STP?
8105
7305
7705L
8405
92
Find the pH of 0.331M HCl.
1.18
0.78
0.48
0.98
93
The following titration curve represents a _______ mixed with a _______.
Strong Acid, Weak Base
Strong Acid, Strong Base
Strong Base, Strong Acid
Strong Base, Weak Acid
94
The 1st Law of thermodynamics is __________.
Energy can neither be created nor destroyed
Entropy becomes zero as temperature reaches absolute zero
What goes into motion stays in motion
Entropy tends to increase
95
Which of the following formulas represents Charles Law?
P1V1/T1 = P2V2/T2
V1/T1 = V2/T2
P1/T1 = P2/T2
P1V1 = P2V2
96
The following letters are fictious elements in a Hess Law Question. Find the NET equation (Simplify the equation).
A+ B + 4F --> A
A + 4F --> G
A + F -->
2A + B --> G
97
Acid/Base reactions are also called neutralization reactions.
False
True
98
A 1700kg SUV is parked at the top of a 25 meter cliff.How much potential energy does that SUV have?Gravity Constant=9.81
324kj
348kj
294kj
417kj
99
CH3COOH + NaOH --> NaCH3COO + H2O. In this reaction water is the _________.
Acid
Base
Conjugate Acid
Conjugate Base

Pre-AICE Chemistry Final Review - Perez 24-25 Flashcards | StudBud