A titration of 25.00 mL of an unknown HCl solution with 0.1240 M NaOH starts at a buret reading for NaOH of 0.53 mL.  The phenolphthalein indicator turns light pink in the acid solution for over 30 seconds at a buret reading of 27.30 mL.    5.    What was the volume of NaOH dispensed?  6.    How many moles of NaOH were dispensed?     7.    Write the balanced molecular equation for the neutralization reaction:    8.    How many moles of HCl are present in the acid solution?    9.    What is the molarity of the unknown HCl solution?

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Q: Calculate the pH of each aqueous solution: (a) 0.0037 M HCl; (b) 0.0045 M KOH.

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Q: 4. How can you tell whether a given chemical is an electrolyte or not, looking at its formula?

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Precipitation Titration

Precipitation analysis is used to analyze drugs, and to measure the salt content in food and beverages. It is an important concept from the examination point of view many practical questions are asked on the topic. This topic is significant in the professional exams for both undergraduate and graduate courses, especially for