Reaction Enthalpies – Organic Chemistry Quiz

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Reaction Enthalpies – Organic Chemistry Quiz

The key terms in this Organic Chemistry course include Reaction Enthalpies.


Use the standard reaction enthalpies given below to determine ΔH°rxn for the following reaction:

2 S(s) + 3 O2(g) → 2 SO3(g)                              ΔH°rxn = ?

Given:

SO2(g) → S(s) + O2(g)                                         ΔH°rxn = +296.8 kJ

2 SO2(g) + O2(g) → 2 SO3(g)                         ΔH°rxn = -197.8 kJ

-692.4 kJ

-293.0 kJ

1583 kJ

-791.4 kJCorrect

-494.6 kJ


The vertical height of a wave is called

median.

wavelength.

area.

frequency.

amplitude.Correct


The volume of a gas is proportional to the temperature of a gas is known as

Charles’s Law.Correct

Dalton’s Law.

Avogadro’s Law.

Boyle’s Law.

Ideal Gas Law.


Reaction Enthalpies – Organic Chemistry Quiz


Give the numbers for ml for a p orbital.

-2, -1, 0

0, +1

-1, 0, +1Correct

+1, +2

-2, -1, 0, +1, +2


Which of the following is not an electrophile?

+NO2

Fe+3

CH2CH2Correct

H+

BF3


How many molecules of sucrose (C12H22O11, molar mass = 342.30 g/mol) are contained in 14.3 mL of 0.140 M sucrose solution?

8.29 × 1022 molecules C12H22O11

6.15 × 1022 molecules C12H22O11

1.63 × 1023 molecules C12H22O11

1.21 × 1021 molecules C12H22O11Correct

5.90 × 1024 molecules C12H22O11


Use the standard reaction enthalpies given below to determine ΔH°rxn for the following reaction:

2 S(s) + 3 O2(g) → 2 SO3(g)                              ΔH°rxn = ?

Given:

SO2(g) → S(s) + O2(g)                                         ΔH°rxn = +296.8 kJ

2 SO2(g) + O2(g) → 2 SO3(g)                         ΔH°rxn = -197.8 kJ

-692.4 kJ

-293.0 kJ

1583 kJ

-791.4 kJCorrect

-494.6 kJ


The vertical height of a wave is called

median.

wavelength.

area.

frequency.

amplitude.Correct


The volume of a gas is proportional to the temperature of a gas is known as

Charles’s Law.Correct

Dalton’s Law.

Avogadro’s Law.

Boyle’s Law.

Ideal Gas Law.


How many photons are contained in a flash of green light (525 nm) that contains 189 kJ of energy?

2.01 × 1024 photons

1.25 × 1031 photons

4.99 × 1023 photonsCorrect

7.99 × 1030 photons

5.67 × 1023 photons


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