Question

Calculate the number of moles in 136g of ammonia

Answer 1

Answer:

8moles

Explanation:

We are given the mass of ammonia to be 136g

  Ammonia = NH₃  

Let us find the number of moles in ammonia;

 Number of moles  = $\frac{mass}{molar mass}$  

  Molar mass of ammonia = 14 + 3(1) = 17g/mol

so;

   Number of moles  = $\frac{136}{17}$   = 8moles