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Standard XII
Chemistry
Properties of Water
43. 1.7 g of ...
Question
43. 1.7 g of ammonium salt was heated with excess of NaOH. The ammonia released in the process neutralises 100 cc solution of N/5 H2SO4. What is the percentage of ammonia in the salt?
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Q.
2.20 g of an ammonium salt was boiled with 75 mL of NaOH till the emission of ammonia gas ceased. The excess of unused NaOH solution required 70 mL of N/2 sulphuric acid for neutralisation. Calculate the percentage of ammonia in the salt.
Q.
2.26
g
of impure ammonium chloride were boiled with
100
m
L
of
N
N
a
O
H
solution till no more ammonia was given off. The excess of
N
a
O
H
solution left over required
30
m
L
2
N
H
2
S
O
4
for neutralisation. Calculate the percentage purity of the salt.
Q.
2.26
g
of an ammonium salt were treated with
100
m
L
of normal
N
a
O
H
solution and boiled till no more of ammonia gas was given off. The excess of
N
a
O
H
solution left over required
60
m
L
normal sulphuric acid. Calculate the percentage of ammonia in the salt.
Q.
1.13
g
of an ammonium salt was boiled with
100
m
L
of
N
N
a
O
H
solution till the evolution of ammonia gas was given off.
60
m
L
of
N
H
2
S
O
4
were required to neutralize the excess of
N
a
O
H
present in remaining solution. Find out the % of
N
H
3
in the salt.
Q.
0.5
g
of impure ammonium chloride was heated with caustic soda solution to evolve ammonia gas, the gas is absorbed in
150
m
L
of
N
/
5
H
2
S
O
4
solution. Excess sulphuric acid required
20
m
L
of
1
N
N
a
O
H
for complete neutralization. The percentage of
N
H
3
in the ammonium chloride is:
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