问一些化学问题（英文的）1)The stepwise formation constants for the complex [Ni(NH 3) 6]Cl 2 are log 10K 1 = 2.72, log 10K 2 = 2.17, log 10K 3 = 1.66, log 10K 4 = 1.12, log 10K 5 = 0.67 and log 10K 6 = -0.03. The log 10β 6 is therefore:
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问一些化学问题（英文的）1)The stepwise formation constants for the complex [Ni(NH 3) 6]Cl 2 are log 10K 1 = 2.72, log 10K 2 = 2.17, log 10K 3 = 1.66, log 10K 4 = 1.12, log 10K 5 = 0.67 and log 10K 6 = -0.03. The log 10β 6 is therefore:
问一些化学问题（英文的）
1)
The stepwise formation constants for the complex [Ni(NH 3) 6]Cl 2 are
log 10K 1 = 2.72,
log 10K 2 = 2.17,
log 10K 3 = 1.66,
log 10K 4 = 1.12,
log 10K 5 = 0.67 and
log 10K 6 = -0.03.
The log 10β 6 is therefore:-
A. 8.31
B. 8
C. 8.34
D. 4.04
2)
There are five dimethylhexane isomers. Which one(s) can exhibit optical activity? (Select ALL correct answers)
A. 3,3-dimethylhexane
B. 2,3-dimethylhexane
C. 2,4-dimethylhexane
D. 2,5-dimethylhexane
E. 2,2-dimethylhexane
3)
Select the active nitrating species in aromatic nitration reactions involving a mixture of concentrated nitric and concentrated sulfuric acids:
A. HO-NO2
B. NO2-
C. NO2+
D. HO-SO2-ONO2
E. [H2O-NO2]+
4)
What class of organic compound is hydrolysed in aqueous acid to produce a carboxylic acid and an alcohol?
问一些化学问题（英文的）1)The stepwise formation constants for the complex [Ni(NH 3) 6]Cl 2 are log 10K 1 = 2.72, log 10K 2 = 2.17, log 10K 3 = 1.66, log 10K 4 = 1.12, log 10K 5 = 0.67 and log 10K 6 = -0.03. The log 10β 6 is therefore:
1)?
2)abce
3)d
4)Ester