Calculate the average atomic mass of boron (B), which has two isotopes: B-10 with 19.9% natural abundance, and B-11 with 80.1% a
1 answer:
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Answer:
a)
1-Pentanamine
2-Pentanamine
3-Pentanamine
3-methyl-2-butanamine
3-methyl-1-butanamine
2-methyl-1-butanamine
2-methyl-2-butanamine
2,2-dimethyl-1-propanamine
b)
2-pentanamine
3-methyl-2-butanamine
2-methyl-1-butanamine
Explanation:
Amines are organic compounds derived from ammonia by replacing the hydrogen atoms, one at a time with carbon-containing groups. The functional groups are R-NH₂, R₂-NH, and R₃-N
Amines are classified into primary, secondary, or tertiary according to the number of substituted hydrogen.
From the given question.
A compound with the molecular formula C₅H₁₃N was given;
The possible eight structural formula of the compound and those that exhibit chirality can be seen in the attached image below.
Answer:
(a) 0.8 s
(b) t = 7.2 s
Explanation:
(a) Half life expression for second order kinetic is:
Where,
is the initial concentration = 1.0 M
k is the rate constant = 1.25 M⁻¹s⁻¹
So,
Half life = 0.8 s
(b) Integrated rate law for second order kinetic is:
Where, is the final initial concentration
For 90% completion, 10% is left. so,
So,
t = 7.2 s