What quantity of hcl was present in the initial mixture

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A mixed aqueous solution of HCl and sulfurous acid (H2SO3; Ka1 = 1.39×10-2; Ka2 = 6.73×10-8) is titrated with 0.1000-M NaOH.

The first end point (ethyl orange indicator) is reached after 38.18 mL of NaOH has been added.

The second end point (thymolphthalein indicator) is reached after a total of 55.94 mL of NaOH has been added.

1) What quantity of HCl (units of mol or mmol) was present in the initial mixture?

2) What quantity of sulfurous acid (units of mol or mmol) was present in the initial mixture?

Reference no: EM132413053

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