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Chemistry Test

Authored by Charles Martinez

Chemistry

11th - 12th Grade

NGSS covered

Chemistry Test
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19 questions

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1.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

When 0.10 g of propane was burned the quantity of heat evolved was 5.0 kJ. The enthalpy of combustion of propane in kJ mol−1 is

−800

−1500

−2200

−2900

Tags

NGSS.HS-PS1-4

2.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Media Image

Using the data below, which is the correct value for the standard enthalpy of formation for TiCl4(l)?

−1538 kJ mol−1

−1094 kJ mol−1

−750 kJ mol−1

+286 kJ mol−1

Tags

NGSS.HS-PS1-4

3.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Media Image

When ethanamide (CH3CONH2) burns in oxygen the carbon is converted into carbon dioxide, the hydrogen is converted into water and the nitrogen forms nitrogen gas.


Using the data above, which one of the following is a correct value for the enthalpy of combustion of ethanamide?

−1823 kJ mol−1

−1183 kJ mol−1

−1000 kJ mol−1

−360 kJ mo1−1

Tags

NGSS.HS-PS1-4

NGSS.HS-PS3-1

4.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

In which one of the following reactions is the standard enthalpy change equal to the standard enthalpy of formation of lithium fluoride?

Li(g) + F(g) → LiF(s)

Li+(g) + F(g) → LiF(s)

Li+(aq) + F(g) → LiF(s)

Li(s) + 0.5F2(g) → LiF(s)

Tags

NGSS.HS-PS1-4

5.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

What is the temperature rise, in K, when 504 J of heat energy are absorbed by 0.110 kg of solid iron?


Specific heat capacity of iron = 0.448 J K−1 g−1

9.78 × 10−2

1.02 × 101

2.83 × 102

1.02 × 104

Tags

NGSS.HS-PS3-2

6.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Media Image

What is the enthalpy of formation of buta-1,3-diene, C4H6(g)?

+112 kJ mol–1

–112 kJ mol–1

+746 kJ mol–1

–746 kJ mol–1

Tags

NGSS.HS-PS1-4

7.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Media Image

The table shows the standard enthalpy of formation, ΔfHθ, for some of the substances in the reaction


C2H6(g) + 6F2(g) ⟶ C2F6(g) + 6HF(g) ΔHθ = −2898 kJ mol−1


What is the standard enthalpy of formation, in kJ mol−1, for HF(g)?

−1638

−273

+273

+1638

Tags

NGSS.HS-PS1-4

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