Word equation
diammonium sulfide + nitric acid → ammonium nitrate + hydrogen sulfide
Input interpretation
(NH4)2S + HNO3 → NH4NO3 + H2S
Diammonium sulfide nitric acid ammonium nitrate hydrogen sulfide
Balanced equation
Balance the chemical equation algebraically:
(NH4)2S + HNO3 → NH4NO3 + H2S
Add stoichiometric coefficients, c, to the reactants and products:
c1(NH4)2S + c2 HNO3 → c3NH4NO3 + c4H2S
Set the number of atoms in the reactants equal to the number of atoms in the products for H, N, S and O:
H: 8c1 + c2= 4c3 + 2c4
N: 2c1+ c2 = 2c3
S: c1 = c4
O: 3c2 = 3c3
Since the coefficients are relative quantities and underdetermined, choose a coefficient to set arbitrarily. To keep the coefficients small, the arbitrary value is ordinarily one. For instance, set c1 = 1 and solve the system of equations for the remaining coefficients:
c1 = 1 c2=2
c3 = 2 c4=1
Substitute the coefficients into the chemical reaction to obtain the balanced
equation:
Answer:
(NH4)2S + HNO3 → NH4NO3 + H2S
