The value of x in Fe(NH4)2(SO4)2 . H2O can be found by determining the amount in mol of sulfate in the compound.A 0.982 g sample was dissolved in water and excess BaCl2 (aq) was added. The precipitate of BaSO4 was separated and dried and found to weight 1.17g.
a) Calculate the amount in mol, of BaSO4, in the 1.17g of precipitate.
b) Calculate the amount in mol of sulfate in the 0.982 g sample of Fe(NH4)2(SO4)2 . H2O.
c) Calculate the amount, in mol, of iron in the 0.982g sample of Fe(NH4)2(SO4)2 . H2O.
d) Determine the mass, in g, of the following present in the 0.982 g sample of Fe(NH4)2(SO4)2 . H2O:
i. iron
ii. ammonium
iii. sulfate
e) Use your answer from part (d) to determine the amount in mol of water present in the 0.982 g sample of Fe(NH4)2(SO4)2 . H2O.
f) Determine the amount , in mol, of Fe(NH4)2(SO4)2 . H2O and hence the value of x.
Answers
Answer:
The value of x in Fe(NH4)2(SO4)2 . H2O can be found by determining the amount in mol of sulfate in the compound.A 0.982 g sample was dissolved in water and excess BaCl2 (aq) was added. The precipitate of BaSO4 was separated and dried and found to weight 1.17g.
a) Calculate the amount in mol, of BaSO4, in the 1.17g of precipitate.
b) Calculate the amount in mol of sulfate in the 0.982 g sample of Fe(NH4)2(SO4)2 . H2O.
c) Calculate the amount, in mol, of iron in the 0.982g sample of Fe(NH4)2(SO4)2 . H2O.
d) Determine the mass, in g, of the following present in the 0.982 g sample of Fe(NH4)2(SO4)2 . H2O:
i. iron
ii. ammonium
iii. sulfate
e) Use your answer from part (d) to determine the amount in mol of water present in the 0.982 g sample of Fe(NH4)2(SO4)2 . H2O.
f) Determine the amount , in mol, of Fe(NH4)2(SO4)2 . H2O and hence the value of x.
Explanation:
The value of x in Fe(NH4)2(SO4)2 . H2O can be found by determining the amount in mol of sulfate in the compound.A 0.982 g sample was dissolved in water and excess BaCl2 (aq) was added. The precipitate of BaSO4 was separated and dried and found to weight 1.17g.
a) Calculate the amount in mol, of BaSO4, in the 1.17g of precipitate.
b) Calculate the amount in mol of sulfate in the 0.982 g sample of Fe(NH4)2(SO4)2 . H2O.
c) Calculate the amount, in mol, of iron in the 0.982g sample of Fe(NH4)2(SO4)2 . H2O.
d) Determine the mass, in g, of the following present in the 0.982 g sample of Fe(NH4)2(SO4)2 . H2O:
i. iron
ii. ammonium
iii. sulfate
e) Use your answer from part (d) to determine the amount in mol of water present in the 0.982 g sample of Fe(NH4)2(SO4)2 . H2O.
f) Determine the amount , in mol, of Fe(NH4)2(SO4)2 . H2O and hence the value of x.