Answer:
The moles of ammonia present will be "0.274 moles".
Molar mass:
A particular element's molar mass would be the mass of either the material that contains 1 mole of material. It should be the weight of such mole of something in basic words.
To determine the molar mass, multiply the atomic mass per each substance by the component's subscript throughout the chemical equation.
Given:
Weight in grams, w = 4.652 g
Molar mass, m = 17.030 g/mol
We know,
→ Number \ of \ moles (n)= \frac{Weight(w)}{Molar \ mass(m)}Number of moles(n)=
Molar mass(m)
Weight(w)
By substituting the values,
n = \frac{4.652}{17.030}n=
17.030
4.652
= 0.274=0.274 moles
Thus the response above is right