Answer:
<h2>326,250 J</h2>
Explanation:
The kinetic energy of an object can be found by using the formula

m is the mass
v is the velocity
From the question we have

We have the final answer as
<h3>326,250 J</h3>
Hope this helps you
The question is incomplete, the complete question is shown in the image attached to this answer.
Answer:
a) Br^-
b) FeCl3
c) slower
d) see the first attached image
Explanation:
Aromatic compounds undergo electrophilic substitution sections in the presence of the appropriate electrophile.
In the reaction above, the Br^- nucleophile attacks the Lewis acid FeCl3. Recall that the nitro group is meta directing hence the incoming Br^+ electrophile is directed towards the meta position as shown in the image attached.
Note that the nitro group deactivates the ring towards electrophilic substitution hence the reaction is slower with nitrobenzene than with unsubstituted benzene.
Answer:
First-order with respect to hydrogen.
Explanation:
Hello!
In this case, considering that the rate law of this reaction can be expressed via:

If we want to know m, the order of reaction with respect to hydrogen, we need to relate the experiments 1 and 3 in order to get rid of the pressure of ICl:

Thus, we plug in the given rates, and pressures to get:

So we can cancel wout k and 325^n:

Next we solve for m, the order of reaction with respect to hydrogen:

It means it is first-order with respect to hydrogen.
Regards!
Answer:
Revisa la explación detallada, por favor.
Explanation:
¡Hola!
En este caso, teniendo en mente la definición de ley de velocidad, es posible recordar que esta tiene la forma genérica:
![r=k[A]^m](https://tex.z-dn.net/?f=r%3Dk%5BA%5D%5Em)
En donde k es la constante de velocidad, [A] la concentration de cualquier especie A en la reacción y m el orden the reacción. Ahora, hay tres órdenes de reacción, cero, primer, y segundo orden, y esto pasa cuando m=0, m=1 y m=2 respectivamente. Por lo tanto, si la reacción es de orden cero, la rapidez de reacción resulta igual a la constante de velocidad dado que la concentración estaría elevada a la cero y por consiguiente siempre tendrá valor de 1, por lo que la concentración no afecta la velocidad de reacción. Esto anterior se expresa como:
![r=k[A]^0\\\\r=k](https://tex.z-dn.net/?f=r%3Dk%5BA%5D%5E0%5C%5C%5C%5Cr%3Dk)
¡Saludos!
Answer:
7,1x10⁻⁵M = [OH⁻]
Explanation:
pH is the -log of hydronium ion. pOH is -log of hydroxide ion. Knowing pH + pOH = 14:
14 = 9,85 + pOH
pOH = 14 - 9,85
pOH = 4,15
-log [OH⁻] = 4,15
10^-4,15 = [OH⁻]
<em>7,1x10⁻⁵M = [OH⁻]</em>
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I hope it helps!