Jump to content

Recommended Posts

Posted (edited)

Bonjour 

est ce que qqn pourrait m’indiquer comment on trouve un pH= 12 pour litem B 1585998034-image.jpg

 

également comment on trouve la vitesse moyenne= 10 m/min pour le qcm 4 1585998052-image.jpg

 

et aussi est ce qu’un liquide newtonien est forcément réel? 

merciii

Edited by C31
  • Solution
Posted

salut

 

le pH d'une base forte s'obtient par pH = 14 + log C

ici C = 0,01 donc 10-2

pH = 14 + (log 10-2) = 14 -2 = 12 🐸

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...