Okay I did the math and I'm guessing around 18*C
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: The major product of the reaction between Hydrobromic Acid and 2-bromo-1-butene in the presence of ether and acid is 2,2-dibromobutane.
Explanation:
The mechanism of the reaction is supported by the Markovnikov's rule which explains that in the addition reaction of alkenes by hydrogen-halogen compounds, the incoming halogen substituent goes to the more substituted Carbon. It can also be stated that incoming hydrogen atom goes to the Carbon with more Hydrogen atoms.
The only case when the reverse of Markovnikov's rule takes place is when Hydrogen peroxide is present and the addition reagent is HBr.
This case is not like that and it simply follows the Markovnikov's rule.
I'll add an attachment of the reaction to this now.
Mole ratio:
H2SO4 + Ca(OH)2 = CaSO4 + 2 H2O
1 mole H2SO4 ----------- 1 mole Ca(OH)2
? moles H2SO4 --------- 0.10 moles Ca(OH)2
0.10 x 1 / 1
= 0.10 moles of H2SO4
The Universe
Is Not shrinking
Is Not Expanding
It Does contain billions of galaxies
And it is Not about 10 billion years old
Hope this Helps. :)