Answer: -
6 mg
Explanation: -
Initial amount N₀ = 192 mg
Half life = 6 hours.
Time given = 30 hours
Number of half lives =
= 5
Amount present after 30 hours = N₀ x []
Amount present after 30 hours = 192 mg x []
= 6 mg
Answer: a. 7.31 g
b. 20.4 %
Explanation:
To calculate the moles :
According to stoichiometry :
3 moles of require = 1 mole of
Thus 0.645 moles of will require= of
Thus is the limiting reagent as it limits the formation of product and is the excess reagent.
As 3 moles of give = 2 moles of
Thus 0.645 moles of give = of
Mass of
Thus theoretical yield for this reaction under the given conditions is 7.31 g.
b)
The percent yield for this reaction under the given conditions is 20.4 %
OPTION D IS YOUR ANSWER.............
Answer:
C : t-BuOMe
Explanation:
The tert -butanol is a tertiary alcohol and when chloride ion attacks the carbocation, it forms t-BuCl.
The reaction of tert-butyl chloride or t-BuCl ((CH3)3C−Cl) with methanol and MeOH (CH3−OH) gives the product tert-Butyl methyl ether or t-BuOMe (CH3)3C−OCH3:
(CH3)3C−Cl + CH3−OH => (CH3)3C−OCH3 + HCl
Hence, the correct asnwer is C : t-BuOMe
Answer:
Self ionization and self dissociation both are the process of ionization of the water.
Explanation:
The ionization process occur in pure water. This process occur when water is in aqueous form, where the water molecules like H2O will deprotonates and to form a hydroxide ions OH-.
It immediately protonates another molecule with water such as H+. It makes hydronium such as H3O+. It is also called auto protolyzes.
Such as an example:
H2O +H2O = H3O+ + OH-