Question

How many moles of Na2CO3 will contain 0.5 mole of oxygen atoms??

Answer 1

Answer:

6

Explanation:

mole means 1 molecule and 2 mole equals to 1molecule

Answer 2

Answer:0.16

Explanation:

1 mol of na2co3=106g

1 mol has 46 Na,12 C,48 O2 in grams

No of moles of O2 in 1 mol na2co3=48÷16=3 mol

1 mol na2co3=3 mol o2

0.5 mol o2 in 0.5÷3 =0.16 mol na2co3