BBS C2 Quantitative Chemistry
Home > Preview
The flashcards below were created by user
on FreezingBlue Flashcards.
What is the relative atomic mass of an element?
- It is the mass number of that element
- N = 14
- H = 1
- O = 16
How do you calculate the relative formula mass of a substance?
- Add the relative atomic mass or each atom together
How do you calculate the percentage mass of an element in a compound?
What is the theoretical yield of a reaction?
The maximum mass of product, when all reactants react
What is the actual yield in a chemical reaction?
The mass of product you actually get!
How do you work out the percentage yield in a chemical reaction?
Why are yields less than 100%
- Incomplete reactions
- Unwanted reactions
- Products lost on transfer
What is the empirical formula for the following:
Remember you just simplify the numbers as low as they will go
Home > Flashcards > Print Preview