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American National Curriculum

Grade 12

Ap Chemistry

Grade 12 Ap Chemistry Questions asked by Filo students

Question 1

Part

A

Uee the balanced equation for the combusson co octane to determine haw many moles of

H_{2} O

are proouced by the cembustion of

26.0

moles of

C_{5} H_{14}

2 C_{8} H_{18} (l) + 25 O_{2} (e) \to 16 CO_{2} (E) + 18 H_{2} O (g)

26 moles

H_{2} O

18 moka

H_{2} O

208 masias

H_{2} O

234 moles

H_{2} O

Prowite keedtack

Topic:

Chemical Foundation & Stoichiometry

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Question 2

The equilibrium constant,

K_{c}

, for the following reaction is

1.0 \times 1 0^{- 5}

1500 K

N_{2} (g) + O_{2} (g) NO ⇌ NO (g)

0.570 M N_{2}

and

0.570 M O_{2}

are allowed to equilibrate at

1500 K

, what is the concentration of

NO

$5.7 \times 1 0^{- 6} M$
$9.0 \times 1 0^{- 4} M$
$2.4 \times 1 0^{- 4} M$
$1.8 \times 1 0^{- 3} M$
$2.4 \times 1 0^{- 3} M$

Topic:

Chemical & Ionic Equilibrium

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Question 3

1. A

1000 ft 3

vessel contains ethylene at 100 psig. You will have to purge the vessel to reduce the ethylene concentration to

1%

to prepare the vessel to be opened for maintenance. The purge nitrogen pressure is at 125 psig. You blow the vessel down to 0 psig to the flare and begin pressure purging with nitrogen. a. What is the ethylene concentration in the vessel after 3 pressure purges using nitrogen from 0 psig to 125 psig? Show all work b. How many pressure purges does it take to reduce the ethylene concentration below

1%

? Show all work.

Topic:

Chemical Foundation & Stoichiometry

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Question 4

5.2.4 Quiz: Compliance Question 1 of 10 The agency most responsible for determining regulations used to make electronic appliances is the

Consumer Product Safety Commission
Department of Energy
Department of Labor
Federal Trade Commission

Topic:

Properties of Solutions

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Question 5

An ideal gaseous reaction (which is a hypothetical gaseous reaction that conforms to the laws governing gas behavior) occurs at a constant pressure of

45.0 atm

and releases

60.4 kJ

of heat. Before the reaction, the volume of the system was

8.60 L

. After the reaction, the volume of the system was

2.80 L

. Calculate the total internal energy change,

Δ E

, in kilojoules.

Topic:

Thermodynamics & Thermochemistry

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Question 6

1.1.4 Quiz: The Human Cost of the Great Depression Question 3 of 10 What best describes Hoovervilles?

Towns founded by President Hoover
rowns of shacks and tents
City row houses built during the Depression
Mansions found in rich neighborhoods

Topic:

Chemical Foundation & Stoichiometry

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Question 7

What's the unit of enthalpy?

Topic:

Thermodynamics & Thermochemistry

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Question 8

What is a mole and how can you calculate one mole of a substance?

Topic:

Electrochemistry

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Question 9

Why is the enthalpy of formation of oxygen zero?

Topic:

Thermodynamics & Thermochemistry

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Question 10

What are the oxidation numbers in the compound

H_{2} O_{2} ?

Topic:

Electrochemistry

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Question 11

What are the isomers of butane?

Topic:

Organic and Biological Molecules

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Question 12

What is an example of entropy from everyday life?

Topic:

Thermodynamics & Thermochemistry

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Question 13

What is the oxidation state of each individual carbon atom in

C_{2} O_{4}^{- 2}

Topic:

Electrochemistry

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Question 14

What functional groups are present in aspirin?

Topic:

Organic and Biological Molecules

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Question 15

What is the oxidation state for the ion

Cr_{2} O_{7}^{2 -}

Topic:

Electrochemistry

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Question 16

Why does liquid iodine not conduct electricity? (explain in terms of particles)

Topic:

s & p Bock Elements

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Question 17

Which equation represents the atomization of iodine

Topic:

Thermodynamics & Thermochemistry

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Question 18

what is the chemical name or formula of plastic/polythene

Topic:

Organic and Biological Molecules

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Question 19

What is the colour of potassium iodide solution?

Topic:

s & p Bock Elements

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Question 20

Write The Valency Of Aluminium

Topic:

s & p Bock Elements

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Grade 12 Ap Chemistry Questions asked by Filo students

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