Chemlab: Chemistry 3/5


Acids, Bases, and Buffers 2: Unknown Solutions

Overview

Getting Started

Techniques

Procedure

FAQ

Full Lab Manual

Introduction & Goals

Chemistry & Background

Key Questions

Prelab Problems

Safety

Procedure

In Your Write-up

Appendix

Experiments Index

ChemLab Home

FAQ Index

Question 1


Help! I don't know how to get started.


Question 2


My solution has a pH of 4. Doesn't that mean it is an acid?


Submissions


Submit a question or an answer to the FAQ

Questions & Answers

Question 1


Help! I don't know how to get started.


Professor Milde


Think about your results from last week. If your phosphoric acid solution from last week was an unknown, how could you characterize it? What techniques could you use and how would the solution behave? What about the buffer you made last week? Questions like this may help you get started. Also doing the prelab problems and using the Acid-Base software may give you some ideas. Work with your partner and see if you can outline a procedure, after thinking about these questions.


Question 2


My solution has a pH of 4. Doesn't that mean it is an acid?


Professor Milde


Your solution has an acidic pH and it may be a solution of a weak acid. But it might also be a buffer with a pH of 4. How could you distinguish between these two possibilities?

Submissions

Submit to the FAQ


You can submit either a question or an answer to a question about this week's experiment. Your submission will be mailed to the site editor, who will respond to you directly and also add your submission to the FAQ page.

Having trouble with the submission procedure? Check your Kerberos installation. If you lose the FAQ Submission window it may be hidden behind another browser window.

Dartmouth College
Trustees of Dartmouth College, Copyright 1997–2004