Question

the number of oxygen atoms in 4.4g of CO2 is​

Answer 1

Answer:

Molar mass CO2 = 44 g/mol

Therefore, number of moles in 4.4 g CO2 = 4.4/44 = 0.1 mol

Now,

1mol CO2 contains 6.022 x10²³ molecules

0.1mol CO2 contains 6.022 x 10²³x 0.1 = 6.022 x 10²²molecules

Also,

1 molecule of CO2 contains 2 atoms of oxygen

Therefore,

6.022 x10²³ molecules of CO2 will contain 6.022 x 10²² x 2 = 1.204 x 10²³ atoms of oxygen…

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