November 13, 2024, 04:21:13 PM
Forum Rules: Read This Before Posting


Topic: Recipes for sodium phosphate buffer solution  (Read 10227 times)

0 Members and 1 Guest are viewing this topic.

Offline suzi

  • Very New Member
  • *
  • Posts: 1
  • Mole Snacks: +0/-0
Recipes for sodium phosphate buffer solution
« on: June 15, 2007, 01:28:58 AM »
1. I have to find out for my work:
How many grams of NaH2PO4 X H2O and how many grams of Na2HPO4 (dried) I have to take to get a 0.1 M Buffer solution, which has a pH=7.

2. I have the same question for the dried sodium phosphate:

How many of Anhydrous NaH2PO4 I need to mix with how many grams of Anhydrous Na2HPO4 to get a 0.1 M, pH=7 Buffer solution?

I need to find out the answer ASAP. Thanks for your help.

Offline Borek

  • Mr. pH
  • Administrator
  • Deity Member
  • *
  • Posts: 27844
  • Mole Snacks: +1812/-412
  • Gender: Male
  • I am known to be occasionally wrong.
    • Chembuddy
Re: Recipes for sodium phosphate buffer solution
« Reply #1 on: June 15, 2007, 02:36:24 AM »
Please read forum rules.
ChemBuddy chemical calculators - stoichiometry, pH, concentration, buffer preparation, titrations.info

Offline AWK

  • Retired Staff
  • Sr. Member
  • *
  • Posts: 7978
  • Mole Snacks: +555/-93
  • Gender: Male
Re: Recipes for sodium phosphate buffer solution
« Reply #2 on: June 15, 2007, 08:48:11 AM »
What does mean 0.1 M buffer solution?
What volume of buffer you need?
AWK

Sponsored Links