NaOH + HCl ===NaCL +H2O
40 36.5
Xg
Na2CO3 + 2HCl===2NaCL +CO2 +H2O
106 73
yg
x+y=18.6
36.5x/40 +73y/106=146X10%=14.6
x=8g
naoh的质量分数=8/18.6=43%
NaOH + HCl ===NaCL +H2O
40 36.5
Xg
Na2CO3 + 2HCl===2NaCL +CO2 +H2O
106 73
yg
x+y=18.6
36.5x/40 +73y/106=146X10%=14.6
x=8g
naoh的质量分数=8/18.6=43%