A chemistry student weighs out of sulfurous acid , a diprotic acid, into a volumetric flask and dilutes to the mark with distill
1 answer:
Answer: 36.2 ml
Explanation:
Assmed values :
weight of sulphurous acid = 0.104 g
volume of flask = 250 ml
Molarity of NaOH solution = 0.0700 M
Molarity of a solution is defined as the number of moles of solute dissolved per Liter of the solution.
where,
n= moles of solute =
= volume of solution in ml
According to the neutralization law,
where,
= molarity of
solution = 0.00507 M
= volume of
solution = 250 ml
= molarity of
solution = 0.0700 M
= volume of
solution = ?
= valency of
= 2
= valency of
= 1
Therefore, the volume of solution the student will need to add to reach the final equivalence point is 36.2 ml
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