Titration Help: Standardize HCl Using Oxalic Acid & CaCOH Solution

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SUMMARY

The discussion focuses on the preparation of a standard solution of oxalic acid (approximately 0.05M) for the purpose of determining the concentration of a calcium hydroxide (CaCOH) solution and subsequently standardizing hydrochloric acid (HCl). The user describes the process of mixing a calculated amount of solid oxalic acid with water in a 250 ml volumetric flask. Key considerations include the diprotic nature of oxalic acid, which requires half the amount of moles to neutralize the base. The user successfully completed the lab, despite minor issues with titration technique.

PREREQUISITES
  • Understanding of molarity and solution preparation
  • Knowledge of diprotic acids and their neutralization reactions
  • Familiarity with volumetric flasks and titration techniques
  • Basic analytical chemistry principles, particularly alkalimetric titration
NEXT STEPS
  • Research the preparation of standard solutions in analytical chemistry
  • Learn about the titration process and techniques for accurate measurements
  • Study the properties and reactions of diprotic acids, specifically oxalic acid
  • Explore common errors in titration and how to avoid them
USEFUL FOR

This discussion is beneficial for chemistry students, laboratory technicians, and educators involved in analytical chemistry, particularly those focusing on titration methods and solution preparation.

Dynamis
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Question:
Prepare a standard solution of oxalic acid (approx. 0.05M). Use it to find the conc of the given solution of CaCOH. Use this to standardize the given solution of HCl.

So basically I am suppose to do this as an inclass lab. I will be given a 250 ml volumetric flask where i will have to mix water and a calculated amount of oxalic acid in solid form in it. How will I do the calculations and how will I approach this lab. I'm so lost. Any help would great, thanks in advance!
 
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Any textbook on analytical chemistry covers alkalimetric titration, together with precise recipes and how-tos.
 
Dynamis said:
Question:
Prepare a standard solution of oxalic acid (approx. 0.05M). Use it to find the conc of the given solution of CaCOH. Use this to standardize the given solution of HCl.

So basically I am suppose to do this as an inclass lab. I will be given a 250 ml volumetric flask where i will have to mix water and a calculated amount of oxalic acid in solid form in it. How will I do the calculations and how will I approach this lab. I'm so lost. Any help would great, thanks in advance!

keep in mind that oxalic acid is a diprotic acid, so it will take half the amount of oxalic acid (moles) to neutralize all of the base.
 
Thanks for the response guys, I did pretty good on this inclass lab exam today, as far as the calculations went, but the actual titrating and stuff was a little weird as I overfilled my volumetric flask and some other weird stuff. Overall I did alright, but thanks anyway for the help.
 

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