Need help ASAP, Which kind of reactions have higher activation energies?
1 answer:
You might be interested in
10.3 g of will produce from 12.7 g
.
In simple terms, a limiting reagent is a reactant that is completely used up in the reaction.
It is also referred to as a limiting reactant or limiting agent.
Now, according to the question,
Since it is a limiting reagent, it will react fully.
The mass of that will be produced will be:-
Equivalent mole of = Equivalent weight of
= 12.7/169.97 = x*2/274x = 10.3 g.
Hence, 10.3 g of will be produced.
It is used to restrict the reaction.
It tells you the estimated amount of compound to be used.
It brings quantitative understanding to chemical reactions.
More information on limiting reagents can be found here :
#SPJ4
Answer:
Hello your question is poorly written below is the well written question
Uranium, an important component of both nuclear weapons and nuclear reactors, has two major isotopes, U-238, which has a half-life of approximately 4.5 billion years, and U-235, which has a half-life of approximately 700 million years. Both were present in equal amounts at the time of the creation of the Earth, 4.5 billion years ago. How many years after the creation of the Earth had the amount of radiation from uranium decayed to half the amount present at the time of the creation of the Earth
Answer : 140 billion years
Explanation:
Given that :
U-238 h1/2 = 4.5 billion years
U-235 h1/2 = 700 million years
At the beginning both Isotopes where present in equal amount
Determine the T years before the amount of Uranium decays to Half
T = ? N'2 = N1 / 2
we know that N = No ( 1/2 )^h where h = time / half-life time
attached below is the detailed solution of the given problem
