Stehiometrija

Submitted by Ana100 on Tue, 03/18/2014 - 18:17
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Izracunaj masu NaCl koja se dobija reakcijom 300cm3 rastvora HCCCcl,c=0.1mol/dm3 i 600cm3 rastvora NaOH,c=0.1mol/dm3.

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milicaradenkovic - Tue, 03/18/2014 - 19:59

HCl+NaOH--------------------->NaCl+H2O

n(kiseline)=c*V=0.3*0.1=0.03 mol

n(baze)=c*V=0.6*0.1=0.06 mol

n(NaCl)=n(kiseline)=0.03 mol

m(NaCl)=n(NaCl)*Mr=0.03*58.5=1.755 g