ข้อคิดเห็นที่
1:
Atomic Mass for H, O, Cl are 1, 16, and 35.5 amu
Molecular Mass for H2, O2, O3, and Cl2 are 2, 32, 48, and 71 amu
1 Mole of H2 weighs 2 gram and contains 6.02 x 10^23 Molecules ( or 2 x 6.02 x 10^23 Hydrogen Atoms )
1 Mole of O2 weighs 32 gram and contains 6.02 x 10^23 Molecules ( or 2 x 6.02 x 10^23 Oxygen Atoms )
1 Mole of O3 weighs 48 gram and contains 6.02 x 10^23 Molecules ( or 3 x 6.02 x 10^23 Oxygen Atoms )
1 Mole of Cl2 weighs 71 gram and contains 6.02 x 10^23 Molecules ( or 2 x 6.02 x 10^23 Chlorine Atoms )
Hence, for 1 g
Cl2 ---- > Number of Chlorine atoms = ( 1 / 71 ) x ( 2 x 6.02 x 10^23 )
O3 ---- > Number of Oxygen atoms = ( 1 / 48 ) x ( 3 x 6.02 x 10^23 )
O2 ---- > Number of Oxygen atoms = ( 1 / 32 ) x ( 2 x 6.02 x 10^23 )
H2 ---- > Number of Chlorine atoms = ( 1 / 2 ) x ( 2 x 6.02 x 10^23 )
Conclusion : 1 g of Chlorine (Cl2) contains the smallest number of atoms.
โดย:
Real Chemist
[10 ก.พ. 2559 23:00]
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