Nechoufo daba la Physique et Chimie
Attari9a :
1: imprimi le bac
2: Khewi 3 hta 4 swaye3 lewoum wella ghedda
3: Dir Portable silencieux, we sed internet, sed el bab
4: Wer9a double we stylo zere9 we stylo kheder we mistara
5: Lancez wahed compteur fel portable
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Jami3 al ass2ila li mafhemtihach ketebha hena fe commentaire
GHADI NETE3AWNOU 3ELA AL HAL KOULNA
Koul wahed yejaweb 3ela sou2al wahed li 3ajbou fe les commentaires
3OULOUM SVT
TASHIH 3OULOUM SVT
https://baclibre.ma/annalespdff/PhSVTjuin2012correction.pdf
3OULOUM SPH
TASHIH 3OULOUM SPH
https://baclibre.ma/annalespdff/PhSPHjuin2012correction.pdf
3OULOUM SMA
Jouzi tani men Nawawi
+
Mechanic.
Bac PC 2012
Merci.
Mécanique PC :
1- jard al 9iwa : F=m*g, f1=-k*Vg et Farchimède=RO*Hajem_mouzah*g= Ro*(4/3)*pi*r³ (Farchimède mouwajaha nahwa al a3la ) a
is9at
we tel9aw mou3adala tafadouliya ( 3awd attasarou3 bi dVg/dt ) a
2- hal mou3adala tafadouliya li chefnah fel Math ( a*y’+b =c ) a
3- Vlim= lim (t->+oo) [ al hal dyal sou2al li 9ablo Vg(t) ] = B/A a
4- mebyaniyan
Mafhamthoumch, merci.
mafhaamtxi mechanic Pc
Mécanique PC :
1- jard al 9iwa : F=m*g, f1=-k*Vg et Farchimède=RO*Hajem_mouzah*g= Ro*(4/3)*pi*r³ (Farchimède mouwajaha nahwa al a3la ) a
is9at
we tel9aw mou3adala tafadouliya ( 3awd attasarou3 bi dVg/dt ) a
2- hal mou3adala tafadouliya li chefnah fel Math ( a*y’+b =c ) a
3- Vlim= lim (t->+oo) [ al hal dyal sou2al li 9ablo Vg(t) ] = B/A a
4- mebyaniyan
Svp dir m3ana la correction dyal had l wataniate , on en a vraiment besoin
LA khassek anti li tekhedmihoum willa wehelti fe sou2al
nechoufouh ensemble
ostad 1-3 + 1-4 + 1-5 f chimie rah ana ghadi ykhroj 3liya ghir chimie mashad fih walo
Inna wahed tafa3oul ma3a alamoniac wella al a3mida ?
Ostaad dir lina correction par video hna svt rah wlah ta mhtajiinha bzaf o mab9ash lwe9t stp rah maghadish takhod men we9tk bzaf 2 heur maax
pc f chimi soal 1-3 ta9adom niha2i ma3raftchi xf kifax nstakhrjoha
3endena pH we V –> [H3O+] = 10^-pH a
we
[H3O+]=Xf/V hassaba al jadwal al wasfi a]
ne3ewdo we nekherjo Xf
ma3andnachi pH
OK hadak jawab dyal SVT
Sou2al dyalek
ghadi nketbo Qr,eq=[]*[]/[][] bidalat TO
hasebnea Qr,eq –> nekherjo TO
ostad 3afak wahd soal chefto fi wahd lmtihan mafhamtch lihe : 3tawna joj ahmad wahd rcooh o hclo4 galik kol wahd derna lihe mo3ayara m3a ho- o 3tawna joj monhanayat wahd khraj ph=7 olakhor ph =8.3 o gal lik istantij lmonhana dyal lmahlol wahd li howa rcooh ? 3afak ostad mafhamtch kifach n3arfo min khilal ph
lah yhafdek ostad fi ljawab galik bimaana ph> 7 faina lmonhanab kaywafa9 lhimd rcooh .lmochkila ga3 assila li men ba3do mt3al9in bihe bhal mi ghadi nhassbo takiz dyal kol wahd svp
ostad lah yhafek lama jawbnii 3la had soal khayf ythat fi mtihan hak lien dyalo rah bac 2011 sma http://physique-lycee.voila.net/BacSujets/pdf/Bac11SM1.pdf
ostad lah yhafdek had soal ghadi yhama9ni mafhamtch lihe
OK daba ne9edrou nehedrou
HClO4 yatafa3al kouliyan fi al ma2 ( TO =1 ) ithan himd 9aoui
tafa3oulates al mou3ayara houma li ghadi yebeyno lik meziane :
H3O+ + HO- —-> 2H2O HClO4
anawatij hiya al ma2 ithan pH 3enda takafou2 howa 7
RCOOH + HO- –> RCOO- + H2O
anawatij hiya al 9a3ida RCOO- ithan pH 3enda takafou2 > 7 = 8.2
Attarkiz ghadi teste3mel 3ala9at takafou2
C1*V=Cb*Vbe
…
mankdabch 3lik a ostad mafhamtch .3ala9a dyal tarkiz 3arafha ghir dyal ph li ma3rafthach lmochkila menha ghadi n3arfo lmahlol o ga3 assila li men ba3dha 3andhom 3ala9a bihe.chokran
Achnou mafhemtich ?
Vbe men chakel.
C1=Cb*Vbe1/V = 0.10*16*10^-3/10*10^-3 = 0.16mol/l
C2=Cb*Vbe2/V = 0.10*10*10^-3/10*10^-3 = 0.10mol/l
machi dyal tarkiz dyal ph .machi mochkil i9adro mayhotohach
Le pH kan jebdouh be
Tari9at al mamassates chefnaha fel cours :
http://***********/index.php/2011/07/transformations-avec-reactions-acido-basiques-cours-2/
Oustad Allah Yerham Lik l walidin !!!!!!!!!!!!
Chokran Bezaf 3ala Tas7i7 ou 3la l majhoud dyalek M3ana 🙂 🙂 😀 :):)
Kan tmena nradou lik data yawm.
Oustad b9a lik ha tad3i m3ana 🙂 .
Be tawfi9 incha Allah.
Allah ye3awenkoum koulkoum !
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OStad Merci Pour Tous
momkine Tssahah M3ana ba3d l assila f l watani 2013
??