2 1
________
3
__________ _____
3 1.84 g/cm 3 98 % 250 mL 0.46
mol/L
(1)98 % _________
(2) ______
5 mL 10 mL 50 mL 100 mL
(3)
_______
(4) __________
A
B H2SO4
C
D
E
4I
1 _____________
2 CH
3CH
218OH _____________ _______
3 4
3min 3min
/cm
A 2 mL 1 mL
1mL18molL1
Na2CO3
3.0
B 2 mL 1 mL 0.1
C 2 mL 1 mL
3 mL 2mol L1 H2SO4
0.6
D 2 mL 1 mL 0.6
D C H
+ D
______mL_____molL1
