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analytique-midterm-2015.pdf - .r, Date: DUr6C l. : 80 MiN....

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Date:le24fevr.,2015C}Jy{2754.r,NOM#6tud.DUr6C:80MiN.EXAME]\MI-SESSIONl.Afindeprdvenirla carie dentaireunevilleajoute dufluorured I'eau de sonrdservoircylindrique(diamdtre:450 m, profondeur:l0m)jusqu'dce quela concentrationdefluor,rreestde1.6ppm(F:19.00 gmol-l).NB. V:rclha)Combiendelitresde0.1MNaF(4l.gggmol-r) doivent6trea.ioutis?b)QuellemassedeNaFsolidepourraitOtreajoutdeaulieudelasolutionde lapartie(aX,c)QuelestlepHdelasolutionde0.lMNaF,6tant domrd queKu:6.8x10-apourI'ionisationdel'HF?NoterquefionF-estune basefaible./o-l&)Vrft*fiv/^,{**o"us'iTh,'/.sffW$.[FJ"=1,6fP*:-1,6'AL-t-l'6Yto-uJLsl,sgYbGrn3*t,f?Yt\ttoloftrtoF..fr,lF-="flF-al,(Yto'TJL-.P,5-5xlo6cl'tJfrlo(-r:O"ln':yl,flrto?L:Q,sfxt0l,ltlYlo'v'wl=6aJ@*nNufwffiNoFVr^,=W=O,IlaqYp-'*ulo,l,?ro(['-(4>*)oTlafttJ=fu--CCIrf"Jl,stlylct=l,3qxnf*(,x4t.qgJoul''=,t6,xro$[email protected]'@F-+Hao5tlr+ott-Hb=dKu=l,t/7rlo*tt@.

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Term
Winter
Professor
HeschelTeitelbaum
Tags
Ion, Acide, Potentiel hydrog ne, Force ionique, Fe CN oa

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