Amount of Substance

Question 1

What is molecular formula?

Answer 1

Actual number of atoms of each element in a compound

Question 2

What is empirical formula?

Answer 2

simplist ratio of atoms of each element in a compound

Question 3

What is the formula for atom economy

Answer 3

(mr of desired products/ mr of all reactants) x 100

Question 4

what is the calculation for NUMBER of moles

Answer 4

number of molecules/ avogadro

Question 5

What is %yield?

Answer 5

Tells us about the practical efficiency of the process

Question 6

What is the formula for % yield?

Answer 6

(mass of product collected/ theoretical mass) x 100

Question 7

What is the formula for actual yield?

Answer 7

(percentage yield x theoretical yield) / 100

Question 8

What is the equation for %purity?

Answer 8

(actual mass/impure mass) x 100

Question 9

How do you find the average titre?

Answer 9

The two values that are within 0.1 of eachother

Question 10

what is the formula for apparatus error?

Answer 10

(margin of error/quantity) x100

Question 11

what is the ideal gas equation?

Answer 11

pv = nRt