Q2. A student attempted to make the maximum amount of sodium nitrate crystals by above given reaction. The student started with 20cm3 of 0.20mol/dm3 NaCl solution.
NaCl(aq) + AgNO3(aq) à AgCl(s) + NaNO3(aq)
(a)Determine the amount of NaCl(aq) used, when the yield of NaNO3 crystals was 90%.
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Answered by
0
Answer:
Following reaction is an example of which type of reaction: NaCl + AgNO3 gives AgCl + NaNO3. Since there is an exchange of ions between the reactants, it is a double displacement reaction.
Explanation:
Moles of
A
g
+
,
35.0
⋅
g
169.9
⋅
g
⋅
m
o
l
−
1
=
?
?
Moles of
C
l
−
,
25.0
⋅
g
58.4
⋅
g
⋅
m
o
l
−
1
=
?
?
The
N
a
+
(
a
q
)
and
N
O
−
3
(
a
q
)
ions are spectators and do not participate in the reaction. Chloride anion is clearly in excess; precipitation
A
g
C
l
is (almost) quantitative. You are free to do the math.
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0
Answer:
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