Stoichiometry

Question 1

What are the different formula’s to work out number of moles in a substance?

Answer 1

N= m/mr
N= cv
Pv=nrt
N= v/vm

Question 2

What is mass weighed in when it’s in n=m/mr?

Answer 2

Grams

Question 3

What is volume weighed in n=cv?

Answer 3

Litres

Question 4

What is avogadro’s number?

Answer 4

6.02 x 10^23

Question 5

Temperature converted to kelvin from celsius?

Answer 5

C + 273

Question 6

Concentration equations?

Answer 6

CV = cv

C=n/v

Question 7

How do you work out empirical formula?

Answer 7

1. Divide by molar mass
2. Divide by the smallest result from step 1
3. Ratio of atoms.