Question

How many nitrogen atoms are there in 2.10 moles of nitrogen moles?

a. 2.53 x 10^24
b. 4.20 x 10^23
c. 6. 23 x 10^23

Answer 1

n=N/Na;
N=n×Na



`N = 2.10 * 6.02 * {10}^(23) = 1.2642 * {10}^(23) \: atoms`


`N(N2) = 2 * 1.2642 * {10}^(23) = 2.5284 * {10}^(24) molecules`
answer: a