Question

You are given solutions of HCl and NaOH and must determine their concentrations. You use 94.1...

You are given solutions of HCl and NaOH and must determine their concentrations. You use 94.1 mL of NaOH to titrate 100. mL of HCl and 39.1 mL of NaOH to titrate 50.0 mL of 0.0782 M H2SO4. Find the unknown concentrations.

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Answer #1

NaOH concentration is obtained from titration with H2SO4

Concentration of HCl is obtained from titration with NaOH

Note: The formula used is Number of moles of acid = number of moles of base

or

Molarity of acid volume of acid = Molarity of base volume of base

Also 1 mole of H2SO4 will require 2 moles of NaOH

And volume in mL is converted into volume in L by dividing with 1000 as 1 L = 1000 mL.

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