Answer:
Actinides
Explanation:
The actinides are valuable primarily because they are radioactive.
Hey there!
Molar mass ( NH4)2SO4 = 132.1395 g/mol
So:
1 mole ( NH4)2SO4 ---------------- 132.1395 g
moles (NH4)2SO4 ----------------- 3.30 g
moles (NH4)2SO4 = 3.30 * 1 / 132.1395
moles (NH4)2SO4 = 3.30 / 132.1395
=> 0.0250 moles of (NH4)2SO4
Answer A
Hope that helps!
