I think it is D but i'm not sure
hope I helped :)
Hey there!
(NH₄)₂SO₄ = 14 * 2 + 1 * 8 + 32+ 16 * 4 => 132 amu
Explanation:
nH2O=35/18
xH2O=35/18x6.02x10 powered by 23
so, the answer is

im sry if im wrong
Answer:- 0.158 moles
Solution:- Moles are calculated on dividing the grams by the molar mass.
25.0 grams of
are given and we are asked to calculate the moles.
For this we need the molar mass so let's calculate it first.
Molar mass is the sum of atomic masses of all the atoms present in the molecule.
Molar mass = 
= 158.036 gram per mol
Now, we will divide the given grams by molar mass to get the moles and the set is shown as:

= 
So, there are 0.158 moles of
.