acidobasiqueexemple.py

Created by lekiksdu04-1

Created on September 22, 2024

850 Bytes


BOÎTE À OUTILS:  dx=rho x/rho eau

d= densité 

rho eau= 1000g.L-1





DÉTERMINER CONCENTRATION:



On calcule la quantité de H2SO4 introduite dans leau 



  -nH2SO4= mH2SO4/ M H2SO4

or

mH2SO4 = rho H2SO4* VH2SO4

et

rho H2SO4= dH2SO4*rho eau

= 27,225g

en tenant compte du % massique

(90% en masse)



mH2SO4= 90/100* 27,225=24,5025g





donc nH2SO4= 24,5025/98
=0,2500 mol






H2SO4+2H2O -> SO42-+2H3O+

/no / excès     //0.     / epsilone/

/no-x. / excès // x.    / 2x.         /

/no-xmax/‘’  //xmax.   /2xmax/







si transfo total et H2SO4 limitant

nf(H2SO4)=0=no-xmax=0

->xmax=no



et nf(H30+)= 2xmax=2no= 2*0,25

-> 0,50 mol



Daprès léquation bilan, chaque mol de H2So4 
consommé va produire 2x + de moles de H3O+ or on utilise
0,25 mol dH2SO4, donc on obtient 2* 0,25=0,5 mol d H3O+

During your visit to our site, NumWorks needs to install "cookies" or use other technologies to collect data about you in order to:

With the exception of Cookies essential to the operation of the site, NumWorks leaves you the choice: you can accept Cookies for audience measurement by clicking on the "Accept and continue" button, or refuse these Cookies by clicking on the "Continue without accepting" button or by continuing your browsing. You can update your choice at any time by clicking on the link "Manage my cookies" at the bottom of the page. For more information, please consult our cookies policy.