Discover the Number of Moles in Your Sample!
How many moles of ammonia are there in a 346 g sample of pure NH₃?
Given: Molar mass of NH₃ = 17.031 g/mol
Answer:
The number of moles of ammonia in a 346 g sample of pure NH₃ is 20.35 moles.
Number of moles is defined as the ratio of given mass over molar mass.
Number of moles = Given mass / Molar mass
Given: Mass of NH₃ = 346 g
To find: Number of moles?
We know that the molar mass of NH₃ is 17.031 g/mol.
By using the formula for number of moles and substituting the values, we get:
Number of moles = Given mass / Molar mass
Number of moles = 346 / 17.031
Number of moles = 20.35 moles
Therefore, the number of moles of ammonia in a 346 g sample of pure NH₃ is 20.35 moles.