Order
 

1(888) 302 2271 1(877) 741 7256

Essay

ph levels

Essay specific features

 

Issue:

Science

 

Written by:

Mark A

 

Date added:

July 3, 2014

 

Level:

University

 

Grade:

B

 

No of pages / words:

2 / 509

 

Was viewed:

7526 times

 

Rating of current essay:

 
Essay content:

A better definition would be pH=-log[aH1+ ], where aH1+ denotes the activity of the H1+ ion. The activity of an ion is a function of many variables of which concentration is one. It is unfortunate that chemistry texts use a definition for pH that has been obsolete for over 50 years. Because of the difficulty in accurately measuring the activity of the H1+ ion for most solutions the International Union of Pure and Applied Chemistry (IUPAC) and the National Bureau of Standards (NBS) has defined pH as the reading on a pH meter that has been standardized against standard buffers...
displayed 300 characters

Custom written essay

All essays are written from scratch by professional writers according to your instructions and delivered to your email on time. Prices start from $10.99/page

Order custom paper

Full essays database

You get access to all the essays and can view as many of them as you like for as little as $28.95/month

Buy database access

Order custom writing paper now!

  • Your research paper is written
    by certified writers
  • Your requirements and targets are
    always met
  • You are able to control the progress
    of your writing assignment
  • You get a chance to become an
    excellent student!

Get a price guote

 
 

The following equation is used to calculate the pH of all solutions: The activity of the H1+ ion is determined as accurately as possible for the standard solutions used. The identity of these solutions vary from one authority to another, but all give the same values of pH to ± 0.005 pH unit. The historical definition of pH is correct for those solutions that are so dilute and so pure the H1+ ions are not influenced by anything but the solvent molecules (usually water)...
displayed 300 characters

General issues of this essay:
Determine The Primary Activities And Secondary Activities Of Your Organisation. Make A Conscious Decision On Whether Your Organization Should Compete By The Least Cost Strategy Or The Product Differentiation Strategy. Determine The Cost Drivers Of... Point Paper Problem Solution:Global Solutions Supply Chain Differs From B2C to B2B Paper Point By Point Comparison Paper what is it the point of the paper? Point Paper The purpose of paper bags Acid Base Extraction Acid Base Titrations Acid/Base Balance Chemistry: Acid-base Titration Finding Out How Much Acid Is In A Solution Finding Out How Much Acid There Is In A Solution Separation of Acid, Base and Neutral Compounds from a Solid Mixture by Liquid-Liquid Extraction
 

Related essays:

x
Services