CBSE Class 10 Answered
Numerical
Asked by Sumeet Sokhey | 12 Feb, 2012, 10:00: PM
Expert Answer
1. Mass of 1 Ag atom:
As we know 1 mole or 6.023 x 1023 atoms of Ag has mass = 107.8682 g
So, mass of 1 Ag atom = 107.8682 / 6.023 x 1023 = 1.792 x 10-22 g
2. Two gram atoms of nitrogen.(gram atom = One mole of atoms of an element.)
1 mole of N2 is 28g/mole
1 molecule of N2 is 28 AMU (atomic mass units).
1 atom of N (1/2 of the diatomic molecule N2) is 14 amu.
1 molecule of N2 is 28 AMU (atomic mass units).
1 atom of N (1/2 of the diatomic molecule N2) is 14 amu.
So, mass of 2 g atom of nitrogen = 28 g
3. 1 mole of Ca
1 mole of Ca has mass = 40.08 g
4. 2 g Sodium
So, the arrangement will be One mole of calcium > Two gram atoms of nitrogen. > Two grams of Sodium> One atom of silver
Answered by | 13 Feb, 2012, 11:45: AM
