Question

calculate the number of molecules in 11.2 litre of co2 at stp​

Answer 1

Answer:

carbon and oxygen atoms present in 11.2 litres of CO2 at N.T.P. ∴3.011×1023 molecules of CO2 will contain oxygen atoms =2×3.011×1023=6.022×1023 atoms.

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Answer 2

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No : of moles = Given volume / Molar = volume

Given volume = 11.2 litres =

Molar volume = 22.4 litres

No: of moles= 11.2 / 22.4 = 0.5 moles

No: of molecules = No: of moles x Avogadro number

= 0.5 x 6.022 x 1023

= 3.011 x 1023 molecules of

= CO ²

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