2NaOH+CO2=Na2CO3+H2O
M(Na2CO3)=106г/моль
n((CO2)=4,48/22,4=0,2моль
nCO2:nNa2CO3=1:1
n(Na2CO3)=0,2моль
m(Na2C3)=106*0,2=21,2г
w=21,2*100/120=17,7%
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2NaOH+CO2=Na2CO3+H2O
M(Na2CO3)=106г/моль
n((CO2)=4,48/22,4=0,2моль
nCO2:nNa2CO3=1:1
n(Na2CO3)=0,2моль
m(Na2C3)=106*0,2=21,2г
w=21,2*100/120=17,7%