Moles I

Question 1

What is a ‘mole’

Answer 1

• the unit amount of substance
  -represents how many particles of a substance there are, taking into account that particles of different substances have dif masses

Question 2

moles formula ( mass and RFM)

Answer 2

Moles = mass/RFM

Question 3

What is empirical formula of a substance?

Answer 3

The simplest mole ratio of its elements
- eg C6H12(molecular)—>CH2(empirical)

Question 4

Formula for % yield

Answer 4

% yield = experimental (actual) mass/theoretical mass
-then x100