Concentrated hydrochloric acid is 38% HCl by weight and has a density of 1.19 g/mL. A solution
Question:
Concentrated hydrochloric acid is 38% HCl by weight and has a density of 1.19 g/mL. A solution is prepared by measuring 83 mL of the concentrated HCl, adding it to water, and diluting to 1.00 L.
(a) Calculate the approximate molarity of this solution from the volume, percentage composition, and density.
(b) The exact concentration is determined by titration. A 25.00-mL portion of the solution is titrated with 1.04 M NaOH. Phenolphthalein changes color after adding 23.88 mL of the base. What is the concentration of the HCl solution? How does the approximate concentration calculated in part a compare with the exact concentration?
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Step by Step Answer:
a The first step in answering this question is to calculate the mass of HCl in the solution Since the concentrated HCl is 38 by weight we calculate th...View the full answer
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Related Book For 
Chemistry Principles And Practice
ISBN: 9780534420123
3rd Edition
Authors: Daniel L. Reger, Scott R. Goode, David W. Ball
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