Solved

Titration of HCl

Posted on 2014-10-19
4
117 Views
Last Modified: 2014-10-21
Directions: Draw into a clean dry 125-mL Erlenmeyer flask about 75 mL of standardized HCl solution (about 0.1 M) from the stock solution on the reagent shelf. This amount should provide all the standard acid you will need; do not waste it. Record the molarity of the HCl.

How do you calculate the molarity of 75 mL of HCl?
0
Comment
Question by:pzozulka
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
  • 2
4 Comments
 
LVL 84

Accepted Solution

by:
ozo earned 500 total points
ID: 40391273
The reagent label should list it and be about  0.1 M
0
 
LVL 8

Author Comment

by:pzozulka
ID: 40391279
Interesting...my lab partner recorded 0.1030 M, but I can't figure out how she got that number. Further in the calculation section, it asks for Molarity of the standardized HCl as well. If it was simply 0.1 M I don't think they would ask to calculate this.

Does the molarity change based on how much HCl you put into your flask? Because I know molarity is MOL per Liter. But in my case it's 75 mL.
0
 
LVL 84

Expert Comment

by:ozo
ID: 40391293
What did the label on the reagent bottle indicate?
I don't see where they ask you to calculate it, it looked like they merely asked you to record it.
In order to calculate it, you would need to know more about how the stock reagent was prepared.

Was there any source of HCl in your flask other than the stock reagent?
The total amount of HCl in the solution should be proportional to the molar concentration of the solution and to the volume of the solution.
0
 
LVL 8

Author Comment

by:pzozulka
ID: 40394944
After talking with the lab partner, it was labeled on the bottle. :)
0

Featured Post

Enroll in July's Course of the Month

July's Course of the Month is now available! Enroll to learn HTML5 and prepare for certification. It's free for Premium Members, Team Accounts, and Qualified Experts.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Introduction On a scale of 1 to 10, how would you rate our Product? Many of us have answered that question time and time again. But only a few of us have had the pleasure of receiving a stack of the filled out surveys and being asked to do somethi…
Foreword (May 2015) This web page has appeared at Google.  It's definitely worth considering! https://www.google.com/about/careers/students/guide-to-technical-development.html How to Know You are Making a Difference at EE In August, 2013, one …
Although Jacob Bernoulli (1654-1705) has been credited as the creator of "Binomial Distribution Table", Gottfried Leibniz (1646-1716) did his dissertation on the subject in 1666; Leibniz you may recall is the co-inventor of "Calculus" and beat Isaac…
Finds all prime numbers in a range requested and places them in a public primes() array. I've demostrated a template size of 30 (2 * 3 * 5) but larger templates can be built such 210  (2 * 3 * 5 * 7) or 2310  (2 * 3 * 5 * 7 * 11). The larger templa…
Suggested Courses

615 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question