Calculate no of o2 atoms in co2 gas which occupies 112ml at stp
Answers
Answer:
Explanation:
Volume of one mole of any gas at stp = 22.4 litres = 22400 ml.
In given question, volume is 112 ml. So,
No. of moles of CO2 = 112/22400 = 1/200 = 0.005 moles.
For one molr of CO2, there us only 1 O2 atom. So for 0.005 moles of CO2, there are 0.005 O2 atoms.
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Answer:
the answer is 60.02 atoms
Explanation:
It is given that the volume of CO2 at STP is 112 mL
we know that ,
1 mole of any gas at STP consists of 22.4 litres of the gas.
therefore , no. of moles = ( given volume ) / 22.4
no. of moles = 112 / 22,4
no. of moles = 5
we know that ,
no. of molecules = no. of moles x Avogadro's constant
no . of CO2 molecules = 5 x 6.02 x 10power23
no. of CO2 molecules = 30.1 x 10power23
we know that ,
EACH MOLECULE OF CO2 HAS 2 OXYGEN ATOMS
therefore , no. of oxygen atoms = 30.1 x 10power23 x 2
no. of oxygen atoms = 60.2 x 10power23
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