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ohaa [14]
3 years ago
14

Helppp meee Please

Chemistry
1 answer:
Fynjy0 [20]3 years ago
5 0

Answer:

what do you need help with?

Explanation:

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The rate of decomposition of N2O5 in CCl4 at 317 K has been studied by monitoring the concentration of N2O5 in the solution. 2 N
pav-90 [236]

Answer:

Average rate of reaction is 0.000565 M/min

Explanation:

Applying law of mass action for the given reaction:

Average rate = -\frac{1}{2}\frac{[N_{2}O_{5}]}{\Delta t}=\frac{1}{4}\frac{\Delta [NO_{2}]}{\Delta t}=\frac{\Delta [O_{2}]}{\Delta t}

Where, -\frac{1}{2}\frac{[N_{2}O_{5}]}{\Delta t} represents average rate of disappearance of N_{2}O_{5}, \frac{1}{4}\frac{[NO_{2}]}{\Delta t} represents average rate of appearance of NO_{2} and \frac{[O_{2}]}{\Delta t} represents average rate of appearance of O_{2}

Here,-\frac{[N_{2}O_{5}]}{\Delta t} = -\frac{(2.16-2.36)}{(177-0)}M/min=0.00113M/min

So average rate of reaction = [tex]-\frac{1}{2}\frac{[N_{2}O_{5}]}{\Delta t}[/tex] = \frac{1}{2}\times (0.00113M/min)=0.000565M/min

7 0
3 years ago
A 45 kg box is sitting on a window ledge 2.0 m above the ground. What is the potential energy of the box?
Travka [436]

Answer:

<h3>The answer is 900 J</h3>

Explanation:

The potential energy of a body can be found by using the formula

PE = mgh

where

m is the mass

h is the height

g is the acceleration due to gravity which is 10 m/s²

From the question we have

PE = 45 × 10 × 2

We have the final answer as

<h3>900 J</h3>

Hope this helps you

5 0
3 years ago
What happens to electrons in the photoelectric effect?
11111nata11111 [884]
The photoelectric effect occurs when light shines on a metal. ... Light of any frequency will cause electrons to be emitted.
5 0
3 years ago
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If 448.85 mg of KOH is dissolved in 400 ml of water, what will be the pH of the solution?
emmasim [6.3K]
I have provided the steps and solution within the attachment. The pH of the solution would be 12.30, this indicates that the solution is basic, as a higher value of pH indicates presence of more hydroxide ions and less of hydrogen ions in the solution.

8 0
4 years ago
Describe what conditions exist in water molecules to make them dipolar.
lesantik [10]
<span>The bent geometry of the water molecule gives a slight overall negative charge to the oxygen side of the molecule and a slight overall positive charge to the hydrogen side of the molecule. This slight separation of charges gives the entire molecule an electrical polarity, so water molecules are dipolar.</span>
4 0
3 years ago
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