设氧化钠为xg,过氧化钠为yg
Na2O + H2O = 2NaOH
x 9/31x 40/31x
2Na2O2 + 2H2O = 4NaOH + O2 (气体)
y 9/39y 40/39y 8/39y
由题可知
x+y=70
(40/31x+40/39y)/(98-9/31x-9/39y+40/31x+40/39y)=50%
化简得
x+y=70
39x+31y=2418
解方程组得
x=31,y=39
即
Na2O为31g,Na2O2为39g
设氧化钠为xg,过氧化钠为yg
Na2O + H2O = 2NaOH
x 9/31x 40/31x
2Na2O2 + 2H2O = 4NaOH + O2 (气体)
y 9/39y 40/39y 8/39y
由题可知
x+y=70
(40/31x+40/39y)/(98-9/31x-9/39y+40/31x+40/39y)=50%
化简得
x+y=70
39x+31y=2418
解方程组得
x=31,y=39
即
Na2O为31g,Na2O2为39g