3.1.2 Amount of substance

Question 1

Ideal gas equation ?

Answer 1

PV=nRT
p being pressure/pascals
v being volume in m cubed ( 1 cm cubed = 1x10-6) (1mcubed = 1x106)
n being moles
R being gas constant (8.31 JK*-1

Question 2

1 decimetre cubed in m

Answer 2

1 dm cubed = 0.001 metre cubed

Question 3

define the empirical formula

Answer 3

the simplest whole number ratio
of atoms of each element in a compound

Question 4

molecular formula