Question

0.5 मोल नाइट्रोजन (N) परमाणु का द्रव्यमान ज्ञात कीजिए (N = 14)​

Answer 1

Explanation:

given, mole=0.5 and G. M. M=14

since,

mole=weight/G.M.M

so, weight=mole*G.M.M

now, mass or weight=0.5*14

=7 is right answer