Question

Determine the no of moles of O2 in 10.6g of Na2CO3?​

Answer 1

is it O2 or just oxygen ?

Answer 2

Hey Mate!!

No. of Moles = $\frac{Mass\:given}{Molar\: Mass}$

No. of Moles = $\frac{10.6}{2(23)+12+3(16)}$

No. of Moles = $\frac{10.6}{46+12+48}$

No. of Moles = $\frac{10.6}{106}$

No. of Moles (Na2CO3)= $\frac{106}{1060}$ = $\frac{1}{10}$ = 0.1 Moles

No. of Moles of O2 = 2 moles