Titration Help: Standardize HCl Using Oxalic Acid & CaCOH Solution

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Discussion Overview

The discussion revolves around the preparation of a standard solution of oxalic acid for use in a titration experiment to determine the concentration of a calcium hydroxide (CaCOH) solution and subsequently standardize a hydrochloric acid (HCl) solution. The context is primarily focused on a laboratory setting, involving calculations and procedural approaches for the titration process.

Discussion Character

  • Homework-related
  • Technical explanation

Main Points Raised

  • One participant seeks guidance on how to prepare a standard solution of oxalic acid and perform calculations for a titration lab involving CaCOH and HCl.
  • Another participant suggests that any textbook on analytical chemistry would provide information on alkalimetric titration, including recipes and methodologies.
  • A later post reiterates the importance of considering oxalic acid as a diprotic acid, indicating that it requires half the amount of moles to neutralize the base.
  • A participant shares their experience from the lab, noting success with calculations but challenges during the titration process, such as overfilling the volumetric flask.

Areas of Agreement / Disagreement

Participants generally agree on the procedural aspects of preparing the standard solution and the nature of oxalic acid as a diprotic acid. However, there are no explicit resolutions to the initial participant's uncertainties regarding the calculations and lab approach.

Contextual Notes

The discussion does not resolve specific mathematical steps or assumptions regarding the titration process, leaving some aspects of the procedure and calculations open to interpretation.

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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