No.of particles in 48 g of sodium atoms
8 gram of oxygen atom
0.1 mole of CO2 molecules
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Correct Question:
Number of particles in :-
(a) 48g of sodium atoms
(b) 8g of oxygen atoms
(c) 0.1 mole of CO2 molecules
Required Answer:
(a) 48g of sodium atoms
We know that,
▪️1 mole of Na atoms = 6.022 × 10²³ atoms
=> 46g of Na atoms = 6.022×10²³×46/23
=> 46g of Na atoms = 1.2044×10²⁴ atoms
(b) 8g of oxygen atoms
We know that,
▪️1 mole of O2 molecules contain = 6.022×10²³ atoms.
=> 8g of O2 molecules = 6.022×10²³×8/32
=> 8g of O2 molecules = 1.5055×10²³ molecules
(c) 0.1 mole of CO2 molecules
We know that,
▪️1 mole of carbon atoms = 6.022×10²³ atoms
=> 0.1g carbon atoms = 6.022×10²³×0.1
=> 0.1g carbon atoms = 6.022×10²² atoms
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