Moshe T. answered 12/07/20
Highly Skilled Elementary, High school and College Tutor
Hi,
Mass of NH4^+ = number of moles of NH4^+ x Molar mass of NH4^
0.623 mole NH4^ x 18.039g NH4^+ / 1mol NH4^+
= 11.2383g
Equivalent Weight = molar mass / total charge on ion
EW of NH4^+ = 18.039 / 1
= 18.039
Equivalents of NH4^+ = 11.2383 / 18.039
Answer = 0.623
Hope this helps :)