Answer:
<em>The pKa is 13.0.</em>
Explanation:
pKa + pKb = 14
Given, Kb of trimethylamine = 6.3 ×
pKb = - log (6.3 × )
= 1.0
⇒ pKa = 14 - pKb = 14 - 1.0
<u>pKa = 13.0</u>
<em><u></u></em>
<em>Check: For most weak acids, pKa ranges from 2 to 13.</em>
A is the correct answer from what i understand in this question
The correct answer is option C.
1-hexene is an unsaturated hydrocarbon.
2-methylheptane
, 3-ethylpentane and cyclopentane have the suffix -ane, which means they are all alkanes . Alkanes do not have any unsaturation or double bonds.
1-hexene, has the suffix -ene, which means that it is an alkene. Alkanes do have unsaturation or double bonds. As the name indicates, 1-hexene has one double bond.
CH₂=CHCH₂CH₂CH₂CH₃
Answer:
The percent yield is 42.52%.
Explanation:
Theoretical yield of beryllium chloride = 12.7 g
Actual yield of the beryllium chloride = 5.4 g
The formula used for the percent yield will be :
Now put all the given values in this formula, we get:
The percent yield is 42.52%.