Answer:
The pH of solution is 2.88 .
Explanation:
The reaction is :

We know,
for this reaction is = 
Also, since volume of water is 1 L.
Therefore, molarity of solution is equal to number of moles.
Also, ![K_a=\dfrac{[CH_3COO^-][H^+]}{[CH_3COOH]}](https://tex.z-dn.net/?f=K_a%3D%5Cdfrac%7B%5BCH_3COO%5E-%5D%5BH%5E%2B%5D%7D%7B%5BCH_3COOH%5D%7D)
Let, amount of
produce is x.
So,
![K_a=\dfrac{[x][x]}{[0.1]}\\1.76\times 10^{-5}=\dfrac{[x][x]}{[0.1]}](https://tex.z-dn.net/?f=K_a%3D%5Cdfrac%7B%5Bx%5D%5Bx%5D%7D%7B%5B0.1%5D%7D%5C%5C1.76%5Ctimes%2010%5E%7B-5%7D%3D%5Cdfrac%7B%5Bx%5D%5Bx%5D%7D%7B%5B0.1%5D%7D)

We know, 
Therefore, pH of solution is 2.88 .
Hence, this is the required solution.
can turn on and off because it is active through an electric current and when the current is gone it no longer works . electromagnets<span>, - devices that create a magnetic field through the application of electricity. Wrecking yards employ extremely powerful electromagnets to move heavy pieces of scrap metal or even entire cars from one place to another. Your favorite band uses electromagnets to amplify the sound coming out of its speakers. And when someone rings your doorbell, a tiny electromagnet pulls a metal clapper against a bell.</span>
First question I believe is B
The second one is also B
I really hope it helped
<span>Associating the need of surgeon in practice , we write a software of human body biocycle law . this software can provide a science reliance in the time selection of surgical operation plan to the main surgeon
(just an example^)</span>
Answer:
<h2>7.54 atm </h2>
Explanation:
The required pressure can be found by using the formula for Boyle's law which is

where
P1 is the initial pressure
P2 is the final pressure
V1 is the initial volume
V2 is the final volume
From the question we have

We have the final answer as
<h3>7.54 atm </h3>
Hope this helps you