Relative molecular mass

Last updated: 31/01/2020

Oxford AQA International A-Level Chemistry Amount of substance Relative molecular mass

Time limit: 0

Quiz Summary

0 of 25 Questions completed

Questions:

Information

You have already completed the quiz before. Hence you can not start it again.

Quiz is loading…

You must sign in or sign up to start the quiz.

You must first complete the following:

Results

Quiz complete. Results are being recorded.

Results

0 of 25 Questions answered correctly

Your time:

Time has elapsed

You have reached 0 of 0 point(s), (0)

Earned Point(s): 0 of 0, (0)
0 Essay(s) Pending (Possible Point(s): 0)

Average score
Your score

Categories

Not categorized 0%

Current
Review
Answered
Correct
Incorrect

Question 1 of 25

1. Question
What is the definition of relative molecular mass?
- The sum of all relative atomic masses within a compound
- The weighted mean mass of an atom from an element compared to 1/12th of the mass of an atom of carbon 12
- The relative atomic mass of a compound
- The weighted mean mass of an atom from an element
Correct

Incorrect
Question 2 of 25

2. Question
What is the definition of relative atomic mass?
- The weighted mean mass of an atom from an element compared to 1/12th of the mass of an atom of carbon-12
- The weighted mean mass of an atom from an element compared to 1/10th of the mass of an atom of carbon-12
- The weighted mean mass of an atom from an element compared to 1/12th of the mass of an atom of carbon-14
- The weighted mean mass of an atom from an element
Correct

Incorrect
Question 3 of 25

3. Question
What carbon isotope are the masses of atoms compared to within the relative atomic mass?
- Carbon-12
- Carbon-17
- Carbon-10
- Carbon-14
Correct

Incorrect
Question 4 of 25

4. Question
Where can you find the relative atomic mass of an element?
- The larger number next to an element within the periodic table
- By looking at the period the element lies in within the periodic table
- The smaller number next to an element within the periodic table
- By looking at the grouping within the periodic table
Correct

Incorrect
Question 5 of 25

5. Question
What is the relative atomic mass of a nitrogen atom?
- 7
- 21
- 14
- 6
Correct

Incorrect
Question 6 of 25

6. Question
What is the relative atomic mass of an oxygen atom?
- 16
- 14
- 8
- 32
Correct

Incorrect
Question 7 of 25

7. Question
What is the relative atomic mass of a beryllium atom?
- 9
- 4
- 13
- 5
Correct

Incorrect
Question 8 of 25

8. Question
What is the relative atomic mass of a sodium atom?
- 23
- 34
- 11
- 12
Correct

Incorrect
Question 9 of 25

9. Question
What is the relative atomic mass of a helium atom?
- 4
- 2
- 6
- 1
Correct

Incorrect
Question 10 of 25

10. Question
What is the relative atomic mass of a hydrogen atom?
- 1
- 2
- 4
- 0
Correct

Incorrect
Question 11 of 25

11. Question
What is the relative atomic mass of an aluminium atom?
- 27
- 14
- 40
- 13
Correct

Incorrect
Question 12 of 25

12. Question
What is the relative atomic mass of a chlorine atom?
- 35.5
- 52.5
- 18.5
- 17
Correct

Incorrect
Question 13 of 25

13. Question
What is the relative atomic mass of a selenium atom?
- 79
- 113
- 45
- 34
Correct

Incorrect
Question 14 of 25

14. Question
What is the relative atomic mass of a scandium atom?
- 45
- 66
- 21
- 24
Correct

Incorrect
Question 15 of 25

15. Question
What is the relative atomic mass of a carbon atom?
- 12
- 5
- 18
- 6
Correct

Incorrect
Question 16 of 25

16. Question
What is the relative atomic mass of a magnesium atom?
- 24.3
- 36
- 12.3
- 12
Correct

Incorrect
Question 17 of 25

17. Question
What is the relative atomic mass of a phosphorus atom?
- 31
- 46
- 16
- 15
Correct

Incorrect
Question 18 of 25

18. Question
What is the relative atomic mass of a bromine atom?
- 79.9
- 44.9
- 35
- 114.9
Correct

Incorrect
Question 19 of 25

19. Question
What is the relative atomic mass of a colbalt atom?
- 58.9
- 85.9
- 32
- 27
Correct

Incorrect
Question 20 of 25

20. Question
What is the relative atomic mass of an astatine atom?
- 210
- 295
- 85
- 125
Correct

Incorrect
Question 21 of 25

21. Question
What is the relative molecular mass of carbon dioxide?
- 44
- 28
- 22
- 32
Correct

Incorrect
Question 22 of 25

22. Question
What is the relative molecular mass of water?
- 18
- 16
- 20
- 15
Correct

Incorrect
Question 23 of 25

23. Question
What is the relative molecular mass of carbon monoxide?
- 28
- 44
- 14
- 32
Correct

Incorrect
Question 24 of 25

24. Question
What is the relative molecular mass of hydrochloric acid?
- 36.5
- 24.5
- 35.5
- 18
Correct

Incorrect
Question 25 of 25

25. Question
What is the relative molecular mass of calcium carbonate?
- 100.1
- 112.1
- 84.1
- 140.2
Correct

Incorrect