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The molarity of the h2so4 solution is 0.149mol/l.
What is molarity?
The number of moles of solute per liter of solution is known as molarity or molar concentration. It is calculated by dividing the number of moles of solute by the total volume of liters of solution.
What is titration?
Titration is the steady addition of a known concentration solution (called a titrant) to a known volume of an unknown concentration solution until the reaction approaches neutrality, which is sometimes signaled by a color change.
According to the question,
2 KOH + H2SO4 → K2SO4 + 2 H2O
No. moles [tex]NaOH[/tex] = [tex]\frac{42.6 * 0.14}{1000}[/tex][tex]\frac{42.6 * 0.14}{1000}[/tex] = [tex]5.96 * 10^-^3[/tex]
From the equation we can see that the no. moles of [tex]H_2SO_4[/tex] must be half that amount so:
No. of moles [tex]H_2SO_4[/tex] = [tex]5.96 * 10^-^3[/tex] / 2 = [tex]2.98 * 10^-^3[/tex]
[tex]c = \frac{n}{v}[/tex] So,
[tex][H_2SO_4][/tex] = [tex]\frac{2.98 * 10^-^3}{20 * 10^-^3}[/tex] = 0.149mol/l
The molarity of the h2so4 solution is 0.149mol/l.
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