Question

The number of moles of carbon dioxide which contain 8 g
of oxygen is
(a) 0.1 mole it
(b) 0.20 mole
(d) 0.25 mole​

Answer 1

Answer:

0.25 moles of CO2

Explanation:

Given:

Given weight Of O2= 8g

Molar mass of O2= 32g

Number of moles of Oxygen=

Given weight/molar mass

= 8/32

= 0.25 moles of O2

1mole of CO2 contains 1 mole of oxygen.

so

1mole of O2 -------> 1 mole of CO2

0.25 mole of O2---->?

=0.25 moles of CO2

∴0.25 moles of oxygen is present in 0.25 moles of CO2.

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