Question

What mass of oxygen would form from 5 moles of water?

Answer 1

Explanation: The equation of water is H2+1/2O2=H2O

->5 moles H2O*1 mol O2/2 mole

-> H2O=2.5 moles O2

->Now, molar mass of O2= 2*16=32gms

To find mass of O2,

-> No. of moles*Molar mass of O2

->2.5*32=0 gms

So, the mass of oxygen will be 80 gms.