how many atoms are there in 10g of nitrogen (N2).
Answers
Answered by
11
no of moles=given mass/molecular mass
=10/28
=0.35
no of atoms=6.02 * 10^23 * 0.35
=2.10 * 10^23 atoms
=10/28
=0.35
no of atoms=6.02 * 10^23 * 0.35
=2.10 * 10^23 atoms
Answered by
4
2.10 x 10^23
Explanation:
Given mass ÷ molecular mass(nothing but atomic mass)
Given mass = 10 g
Molecular mass of nitrogen (N2) = 14 x 2
= 28 u
As said, given mass ÷ molecular mass
= 10÷28
= 0.35
No.of atoms = 6.02 x 10^23 x 0.35
= 2.10 x 10^23 ( we multiply 6.02 and 0.35 and we get 2.10)
Hope it helped. Please mark as brainliest :)
Similar questions