Question

Aluminium metal combines with oxygen to produce aluminium oxide. If 141.0g of aluminium yields 266.7 g of aluminium oxide, how many grams of oxygen were needed?

Answer 1

Al combines with o2 to produce AlO2 is 456.45 gram

Answer 2

Answer:

Law of constant proportions

Explanation:

Al + O2=Al2O3

141.0 + O2=266.7

266.7 - 141.0=   125.7 g