m(NAOH)=50ml/(1.1g/ml)=45.5g
(1)45.5gX10%=4.55g
(2)CH3COOH+NAOH=CH3COONA+H2O
60 40
x 4.55g
x=6.8g
食醋中醋酸的质量分数=6.8g/200gX100%=3.4%
(3)CH3COOH+NAOH=CH3COONA+H2O
40 82
4.55g y
y=9.3g
溶液中溶质质量分数=9.3g/(45.5g+200g)X100%=3.8%
答:(1)······。
(2)······。
(3)······。
【你先对照答案,看取舍的位数!!!】
这东西要列公式的.....说不清楚.....