Calcuation of Molar Mass & Elemental Composition

chemistry

#1

A sample of clay is found to have the formula Al2O3.K2O.6SiO2. Calculate the percentage of alumina, potassium oxide & silica in the sample


#2

Percentage of Potassium, Oxygen, Silica & Aluminium is given below.


#3

but this was not my question. read it again. well the presentation was nice. reply fast!