Chemistry

The molecular mass of CO2 and O2 are approximately 44 and 32 respectively. Which of the following statements regarding the mass of oxygen and number of molecules of oxygen is correct?

P. The mass of oxygen in 2.24 litres of CO2 is 3.2 g

Q. The number of molecules of oxygen present in it is 6.022 x 1023

  1. Only P
  2. Only Q
  3. Both P and Q
  4. Neither P nor Q

Mole Concept

ICSE

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