Formulae, Equations & Calculations (AQA A-Level Chemistry): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
ShowHide
Practise the questions
10 questions from this quiz
What is compared to?
What is compared to?
1/12th mass of carbon-12 atom
What are the units of relative atomic mass ()?
What are the units of relative atomic mass ()?
It is dimensionless (no unit)
Why is carbon-12 chosen as the reference for relative masses?
Why is carbon-12 chosen as the reference for relative masses?
Non-toxic, solid, easily separable
What does account for?
What does account for?
Natural isotopic distribution
If an element has = 24, what does this mean?
If an element has = 24, what does this mean?
24 times heavier than 1/12th C-12
What is ?
What is ?
Average mass of a molecule vs 1/12 C-12
What is of water () given (H)=1 and (O)=16?
What is of water () given (H)=1 and (O)=16?
18
For which type of compound is relative formula mass (RFM) specifically used?
For which type of compound is relative formula mass (RFM) specifically used?
Ionic compounds
What are the units of molar mass?
What are the units of molar mass?
g/mol
What is the molar mass of a substance with = 18?
What is the molar mass of a substance with = 18?
18 g/mol