State a chemist performed a titration experiment

Reference no: EM13180215

A chemist performed a titration experiment in order to determine the concentration of a given aqueous solution of HCl (an acid). She pipeted 20.00 mL of the HCl solution into an Erlenmeyer flask. She then added about 15 mL of deionized water and 3 drops of phenolphthalein indicator dye to the flask. She titrated this mixture with 0.07481 M NaOH (aq), and obtained a permanent, pale pink endpoint after the addition of 24.21 mL of NaOH (aq). Given that the density of the HCl solution was 1.094 g/mL, determine the concentration of the original HCl acid solution in units of

a) molarity

b) percent by mass

Can you explain please?

Reference no: EM13180215

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