Na=6,023*10^(23)cz/mol- wartosc tablicowa
m=10g
Ns(H2S)=10,75*10^21cz
M2(NaHS)=56g/mol
M(S)=32g/mol
M1(Na2S)=78g/mol
2NaHS->Na2S+H2S
n1(H2S)=Ns/Na=(10,75*10^21)/(6,023*10^(23))=0,01785mol
n2(NaHS)=2*n1=2*0,01785=0,0375mol
ms2=n2*M2=0,0375*56=1,9992g=2g
ms1(Na2S)=m-ms2=10-2=8g
56g/mol NaHS -----32g/mol S
2g NaHS ------x
x=(32*2)/56=1,14286g=1,143g
78g/mol Na2S ----- 32g/mol S
8g -------------y
y=(8*32)/78=3,28205g=3,28g
%S=((x+y)*100%)/m=((1,143+3,28)*100)/10=44,23%=44%
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Na=6,023*10^(23)cz/mol- wartosc tablicowa
m=10g
Ns(H2S)=10,75*10^21cz
M2(NaHS)=56g/mol
M(S)=32g/mol
M1(Na2S)=78g/mol
2NaHS->Na2S+H2S
n1(H2S)=Ns/Na=(10,75*10^21)/(6,023*10^(23))=0,01785mol
n2(NaHS)=2*n1=2*0,01785=0,0375mol
ms2=n2*M2=0,0375*56=1,9992g=2g
ms1(Na2S)=m-ms2=10-2=8g
56g/mol NaHS -----32g/mol S
2g NaHS ------x
x=(32*2)/56=1,14286g=1,143g
78g/mol Na2S ----- 32g/mol S
8g -------------y
y=(8*32)/78=3,28205g=3,28g
%S=((x+y)*100%)/m=((1,143+3,28)*100)/10=44,23%=44%