What is the concentration of a phosphoric acid solution of a 25.00 mL sample if the acid requires 42.24 mL of 0.135 M NaOH for n
2 answers:
Answer: The volume of 0.10 M NaOH required to neutralize 30 ml of 0.10 M HCl is, 30 ml.
Explanation:
According to the neutralization law,
where,
= molarity of NaOH solution = 0.135 M
= volume of NaOH solution = 42.24 ml
= molarity of
solution = ?M
= volume of
solution = 25 ml
= valency of
= 1
= valency of
= 3
Therefore, the concentration of 0.076 M of phosphoric acid of a 25 ml is required to neutralize 42.24 ml of 0.135 M NaOH.
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