<span>The Pauli Exclusion Principle actually states that two electrons cannot occupy the same quantum state. To occupy the same quantum state, they would have the same n (quantum level), l (subshell), ml (orbital), and ms (spin).</span>
Answer:
The half-life is
Explanation:
From the question we are told that
The sample is 90 Y
The first activity is per minute
The second activity is per minute
The duration from 1:00 p.m. on December 3, 2006 to 2:15 p.m. on December 17, 2006 is
Converting to minutes we have
The first order rate constant for this disintegrations can be mathematically represented as
Where is the rate constant
Substituting values
So
The half life is mathematically represented as
So
Answer:
Overall cell notation
Cr2^+(aq)/Cr3^+(aq)// Co^2+(aq)/ Co(s)
Explanation:
Let us consider the two half reaction equations:
Oxidation half equation:
2Cr^2+(aq) -------> 2Cr^3+(aq) + 2e
Reduction half equation:
Co^2+(aq) + 2e --------> Co(s)
Overall reaction equation:
2Cr^2+(aq) + Co^2+(aq) ----> 2Cr^3+(aq) + Co(s)
Overall cell notation
Cr2^+(aq)/Cr3^+(aq)// Co^2+(aq)/ Co(s)
Answer:
His conclusion is wrong
Explanation:
Now we must know that there are various rate laws.
In a zero order rate law, the rate of reaction is independent of the initial concentration of reactants. Hence varying the initial concentration of the reactants results in no change of the rate of reaction.
In first and second order rate laws, the rate of reaction varies with the concentration of one or two reactants in either case respectively.
Having said these, the student does not need to change the temperature but rather designate the reaction as zero order. The rate of reaction is independent of the initial concentration of reactants.
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