Question

What is the mass of aluminium which will be completely oxidized by 44.8 L of oxygen at STP. [Al= 27,0=16]​

Answer 1

Answer:

So we can say that 72 g of Oxygen will be oxidized by 44.8 l of Oxygen

Explanation:

1 mole = 22.4l

2 mole = 22.4 x 2 = 44.8l

so we can say that 2 moles of oxygen are to be used

4 Al + 3  O2 ----> 2  Al2O3

3 moles of O2 oxidizes 4 moles of Aluminium

2 moles of O2 oxidizes ? moles of Aluminium

(2 x 4)/3 = 8/3 = 2.66 moles

1 mole of Aluminium = 27g

2.66 moles of aluminium = ?

Weight of Aluminium = 2.667 x 27 = 72g