1/ Đổi: 15.2ml = 0.0152l; 10ml = 0.01l
CH3COOH + NaOH => CH3COONa + H2O
nNaOH = CM.V = 0.0152x0.2 = 19/6250 (mol)
Theo phương trình ==> nCH3COOH = 19/6250 (mol)
CM ddCH3COOH = n/V = 0.304M
2/ mC = 2.4 (g), mH = 0.6 (g)
=> mO = 4.6 - (2.4 + 0.6) = 1.6 (g)
CT: CxHyOz
Theo đề bài ta có: 12x/2.4 = y/0.6 = 16z/1.6 = 46/4.6
=> x = 2, y = 6, z =1
CT: C2H6O hay C2H5OH