Question

How many molecules of ammonia are present in 34 g of ammonia (Formula = NH3)?

a. 1.8 × 101

b.1.1 × 1023

c.1.2 × 1024

d.2.9 × 10-25

e.3.6 × 1023

Answer 1

Answer:

Explanation:1 mole = 6.022*10²³ 2 moles = 6.022*10²³ * 2 = 12.044 * 10²³ therefore 34 g of NH₃ contains 12.044*10²³ molecules