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Question: Answered & Verified by Expert
The number of oxygen atoms in 4.4 g of CO2 is
ChemistrySome Basic Concepts of ChemistryNEET
Options:
  • A 1.2×1023
  • B 6×1022
  • C 6×1023
  • D 12×1023
Solution:
2382 Upvotes Verified Answer
The correct answer is: 1.2×1023
Molar mass of CO2=12+32=44

 WM=Number of molecules NA  for CO2

4.444=Number of molecules6×1023

∴ Number of molecules in  C O 2 =4.4×6×102344

=0.1×6×1023=6×1022

Number of oxygen atoms =2 times of 6×1022

( Each CO2 contains two oxygen atoms)

Number of oxygen  atom =2×6×1022=1.2×1023

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