The composition of hydric sulphate may be represented thus

Hyd. Sul. Ox-65'31
Ox..
*32*65

putting H for Hyd.,, S for Sul.,,, and O for Ox.,

S32 065-31

we have H204 $52:05 Ost

1

32.65

32

16

The composition of potassic chlorate may be represented thus

Pot.189 Chlor.28'95 Ox-3915

putting K for Pot...1, Cl for Chlor., and O for

Ox., 169 we have K31·89

39.1

C199-95 039-15

28.95

85'5

16

Given the formula of a compound, to find its per

centage composition.

1. The formula of water is H2O, what is its percentage composition?

The composition of water is

2. The formula of hydric sulphate is H2SO, what

is its percentage composition?

3. The formula of potassic chlorate is KC1O,, what is its percentage composition?

The manganic binoxide mixed with the potassic chlorate is not altered, it merely assists the decomposition.

The preparation of chlorine