moles calculations Flashcards
1
Q
what is moles units for?
A
amount of substance
2
Q
what is the equation linking moles, mass and Mr?
A
moles=mass/Mr
3
Q
what is percentage yield of a chemical reaction?
A
it shows how much product was actually made compared with amount of product that was expected
4
Q
equation for percentage yield?
A
percentage yield= actual yield/ theoretical yield x 100
5
Q
what is empirical formula?
A
simplest whole number ration of the atom present in a compound. It can be calculated from the experimental data
6
Q
what is molecular formula?
A
actual number oh each type of atom present in a compound
