Jump to content

UE ACIDE BASE


Go to solution Solved by saraahh,

Recommended Posts

Posted

Bonjour,

 

sur le cours du TAT pour un acide fort la formule est : ph=-log 2 10^-1 = 0,7,  je ne comprends pas car je sais que -log 10^-1 = 1 mais ce calcul j'arrive pourrait t'on m'expliquer ?

 

bn soirée

  • Ancien Responsable Matière
  • Solution
Posted

coucou @1310 ! 

-log(2x10^-1)= -log2 -log10^-1 = -0.3+1 = 0.7

le 0.3 c'est une valeur donnée ou à connaitre

 

bonne soirée 

CDL

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Recently Browsing   0 members

    • No registered users viewing this page.
×
×
  • Create New...