If you're seeing this message, it means we're having trouble loading external resources on our website.

If you're behind a web filter, please make sure that the domains *.kastatic.org and *.kasandbox.org are unblocked.

Main content

Course: Physical Chemistry (Essentials) - Class 11 > Unit 3

Lesson 7: Acid-base titrations
Science
Physical Chemistry (Essentials) - Class 11
Some basic Concepts of Chemistry
Acid-base titrations
© 2024 Khan AcademyTerms of usePrivacy PolicyCookie Notice

Law of chemical equivalence and titrations

Google Classroom
You might need: Calculator

Problem

10mL of HCl is titrated with a 0.1M NaOH solution. The volume of NaOH added is 50mL.
Later, 0.1M HA2SOA4 solution was added. The volume of HA2SOA4 needed to neutralize the excess NaOH is 5mL.
What is the molarity of the HCl solution?
  • Your answer should be
  • an integer, like 6
  • a simplified proper fraction, like 3/5
  • a simplified improper fraction, like 7/4
  • a mixed number, like 1 3/4
  • an exact decimal, like 0.75
  • a multiple of pi, like 12 pi or 2/3 pi
M.