4. A weighed portion of Fenoterol was placed in a 50 ml flask and made up to the mark with the titration solution. Then 5 ml of the resulting solution was transferred into a 50 ml volumetric flask, brought to the mark with a titration solution and titrated with 0.01 M HCl. Calculate how many ml of HCl was spent on titration if the content of the analyte in the sample was 100%. Write a diagram of the quantification process, indicate the indicator, fix the equivalence point. (The molecular weight of the analyte is 303.36).

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