Question 1.30 What will be the mass of one 12C atom in g?
Class XI Some Basic Concepts of Chemistry Page 24
Answers
Answered by
99
1 mole of carbon= 6.022x 1023 carbon atoms = 12 g carbon
Or 6.022x 1023 atoms of carbon = 12 g of carbon
Therefore 1 atoms of carbon = 12/6.022x 1023 x 1= 1.993 x 10-23 g of carbon
Or 6.022x 1023 atoms of carbon = 12 g of carbon
Therefore 1 atoms of carbon = 12/6.022x 1023 x 1= 1.993 x 10-23 g of carbon
Answered by
133
we know,
mass of 1 mole of ¹²C = 12g
and 1 mole of ¹²C = 6.022 × 10²³ atoms of ¹²C
so, mass of 6.022 × 10²³ atoms of ¹²C = 12g
Mass of 1 atom of ¹²C = atomic mass of C/Avogadro's constant
= 12g/6.022 × 10²³ g
= 1.9927 × 10^-23 g
mass of 1 mole of ¹²C = 12g
and 1 mole of ¹²C = 6.022 × 10²³ atoms of ¹²C
so, mass of 6.022 × 10²³ atoms of ¹²C = 12g
Mass of 1 atom of ¹²C = atomic mass of C/Avogadro's constant
= 12g/6.022 × 10²³ g
= 1.9927 × 10^-23 g
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