132.15 amu
Ammonium sulfate
These species are both polyatomic ions. NH4 + (ammonium ) and SO4 2- ( sulfate ) combine with opposite charges to form (NH4)2SO4 which is ammonium sulfate a polyatomic ionic bonding.
Ammonium sulfate is the chemical name for NH4 2SO3.
acidic
(NH4)2SO4 vs Ce(NO3)4. Ammonium sulfate gives 3 ions in solution whereas cerium nitrate will give 5 ions in solution. So Ce(NO3)4 will have lowest freezing point.
0.758 moles of NH3 is the amount of moles in 50 grams of NH42SO4.
First find out how many grams in 1 mole:Nitrogen is 14.007 g/mol, Hydrogen is 1.0079 g/mol, and Chlorine is 35.453 g/molThere are 4 Hydrogen, so 14.007 + 4*(1.0079) + 35.453 = 53.4916 g/mol(50 g)/(53.4916 g/mol) = 0.9347 moles
there is no charge. NH4 has a plus one charge and sulfate (SO4) has a minus two charge. since there is two NH4 the charges balance out