物质的量的浓度
m(H2O2)=1.1*50=55g
2H2O2=======2H2O +O2
2mol 22.4
X=0.00536mol 60/1000
H2O2初始物质的量的浓度:0.00536/0.05=0.107mol/L
2H2O2=======2H2O +O2
68 22.4
y=0.137g 45/1000
剩余H2O2质量为:0.00536*34-0.137=0.04524g
放出氧气质量为:《(45/1000)/22.4》*32=0.06428g
H2O2的质量分数:0.04523/(55-0.06428)=0.82%