Question

the number of moles of carbon dioxide which contain 16 gram of oxygen​

Answer 1

Answer:

0.5 moles of carbon dioxide contain 16 g of oxygen.

Explanation:

Given mass of oxygen= 16 g

Molar mass of oxygen = 16 g/mol

Number of moles of oxygen = given mass ÷ molar mass

                                               = $\frac{16}{16}$ = 1 mole

1 mole of carbon dioxide($CO_{2}$) contains 2 moles of oxygen.

⇒0.5 moles of carbon dioxide contains 1 mole of oxygen.

Therefore, 0.5 moles of carbon dioxide contain 16 g of oxygen.