5 dots for Nitrogen (Lewis electron-dot structure)
Answer:
k = 0,0025 s⁻¹
Explanation:
To calculate the rate constant it is necessary to find out the order of reaction.
For zeroth order the integrated rate law is:
[A] = [A]₀ -kt
The graph of [A] vs t gives a correlation coefficient R² of 0,9948.
The first order is:
ln [A] = ln [A]₀ -kt
The graph of ln [A] vs t gives a <em>R² of 1</em>
The second order is:
1/[A] = 1/[A]₀ -kt
The graph of 1/[A] vs t gives a R² of 0,9939
As <em>R² = 1 </em>for first order, the descomposition of azomethane follows this kinetics order. The lineal correlation is:
y = b - mx
y = 1,412 - 0,0025x
ln [A] = ln [A]₀ -kt
That means:
-k = - 0,0025 s⁻¹
<em>k = 0,0025 s⁻¹</em>
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I hope it helps!
Answer:
See explanation
Explanation:
Solvolysis is a chemical reaction in which the solvent, such as water or alcohol, is one of the reagents and is present in great excess of that required for the reaction. The solvents act as or produce electron-rich atoms or groups of atoms (nucleophiles) that displace an atom or group in the substrate molecule(Encyclopedia Britannica).
For the two reactions, the organic product is the same(the product is drawn in the second image attached). The both reactions occur by SN1 mechanism since the substrate is a tertiary alkyl halide. The nucleophile is CH3OH and the rate of reaction depends on the concentration of the alkyl halide and independent of the concentration of methanol present.
Therefore, changing the volume of the solvent has no effect on the rate of reaction. The two reactions proceed at exactly the same rate since the initial concentration of the alkyl halide is the same for both reactions.
Answer:
We feel cold when we touch an object or matter like ice at a lower temperature than our body temperature. This is because the heat from our body being higher in amount moves to the ice through our skin(by thermal conduction) in order to attain thermal equilibrium between the ice and the body.
Explanation:
The seasons are caused by the tilt of the Earth on its axis is the correct answer.
Summer starts based off each countries calendar so that can't be right. And during Summer days are longer because we have more sunlight so that one isn't right. And as the earth revolves around the sun it stays in relatively the same distance away so that one is incorrect.
Hope this helps. (;
