Respuesta :
HClO4 +NaOH -----> NaClO4 + H2O
moles of NaOH = (0.0832 x 50 ) /1000= 4.16 x10^-3 moles
since the mole ratio of HClO4 to NaOH is 1:1 the moles of HClO4 is also 4.16 x 10^-3 moles
volume of HClO4 is therefore = moles/ molarity
that is 4.16 x 10^-3mol/ 0.167 mol/L= 0.0249L
multiply by 1000 to convert to ml
0.0249 x 1000= 24.9 ml
moles of NaOH = (0.0832 x 50 ) /1000= 4.16 x10^-3 moles
since the mole ratio of HClO4 to NaOH is 1:1 the moles of HClO4 is also 4.16 x 10^-3 moles
volume of HClO4 is therefore = moles/ molarity
that is 4.16 x 10^-3mol/ 0.167 mol/L= 0.0249L
multiply by 1000 to convert to ml
0.0249 x 1000= 24.9 ml
The volume of in milliliters of the HClO₄ needed to neutralize the NaOH solution is 24.9mL
Stoichiometry
From the question, we are to determine the volume of HClO₄ needed to neutralize the NaOH solution
First, we will write the balanced chemical equation for the reaction
The balanced chemical equation for the reaction is
HClO₄ + NaOH → NaClO₄ + H₂O
This means
1 mole of HClO₄ is required to neutralize 1 mole of NaOH
Now, we will determine the number of moles of NaOH present in the solution
From the given information
Volume of NaOH = 50.00 mL = 0.05 L
Concentration of NaOH = 0.0832 M
Using the formula,
Number of moles = Concentration × Volume
Then,
Number of moles of NaOH present = 0.0832 × 0.05
Number of moles of NaOH present = 0.00416 mole
Now,
Since 1 mole of HClO₄ is required to neutralize 1 mole of NaOH
Then,
0.00416 mole of HClO₄ will be required to neutralize the 0.00416 mole of NaOH
Thus, the number of moles of HClO₄ required is 0.00416 mole
Now, for the volume of HClO₄ required
From the formula,
[tex]Volume = \frac{Number\ of\ moles }{Concentration}[/tex]
Then,
Volume of HClO₄ needed = [tex]\frac{0.00416}{0.167}[/tex]
Volume of HClO₄ needed = 0.0249101 L
Volume of HClO₄ needed = 24.9101 mL
Volume of HClO₄ needed ≅ 24.9 mL
Hence, the volume of in milliliters of the HClO₄ needed to neutralize the NaOH solution is 24.9mL
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