Question

1.) what mass of zinc is needed to completely react with 4.00 g of silver nitrate?

2.) If excess ammonium sulfate reacts with 22.5 g of calcium hydroxide according to the following unbalanced chemical equation:
(NH4)2 SO4 + Ca (OH)2 → CaSO4 + NH3 + H2O


Now, how do I go from here?

Answer 1

Continue #2: So it says to : Calculate the mass of ammonia, NH3, that can be produced.

Can someone explain how to derive to the answer? Please

Answer 2

TEST VERY SOON

Answer 3

1.
Zn + 2AgNO3 ==> Zn(NO3)2 + 2Ag
mols AgNO3 = grams/molar mass = ?
Using the coefficients in the balanced equation, convert mols AgNO3 to mols Zn.
Now convert mols Zn to grams Zn. g Zn = mols Zn x atomic mass Zn.

2. The balanced equation is as follows:

(NH4)2SO4 + Ca(OH)2 → CaSO4 + 2NH3 + 2H2O

mols Ca(OH)2 = grams/molar mass = ?
Using the coefficients in the balanced equation, convert mols Ca(OH)2 to mols NH3. Then convert mols NH3 to grams.
g NH3 = mols NH3 x molar mass NH3.