2020
1
2 2B
3
4
H 1 C 12 N 14 O 16 Na 23 Al 27 Si 28 P 31 S 32
Cl 35.5 Cr 52 Cu 64 Zn 65
3 48
1
A FAST
B 5G 5000 Si
C
D
B
A A B
Si B C
CD
D B
2
A
B 35Cl 37Cl
CNH 5 NH4Cl NH 5
DCO2
B
A
A B35Cl37Cl 17 18
35Cl 37Cl B CNH 5 NH 4Cl NH 5
C DCO2 C O
D B
3
A
B
C
D
D
A
A B
B C C
D D D
4 NA
A25 1L pH=9 CH3COONa 1109 NA
B 22.4L NO 11.2L O 2 NA
C 22.4L 19NA
D 0.4mol HNO 3 0.2NA
D
A25 1L pH=9 CH3COONa c(H +)=10- 9mol/L
c(OH -)=10- 5mol/L 110- 5NA
A BNO O2
