Answer:
c. 131 kPa
Explanation:
Hello!
In this case, since the relationship between volume and pressure is inversely proportional, based on the Boyle's law:
Considering that the standard pressure is 101.325 kPa, we can compute the final pressure as shown below:
Therefore, the answer is c. 131 kPa .
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Answer:
Opcion D
Explanation:
Una desintegración beta es de a forma:
0
-1
You can find this in opcion D
I hope I will help you : )
<u>Answer:</u> The unknown salt is NaF
<u>Explanation:</u>
To calculate the molarity of solution, we use the equation:
Moles of salt = 0.050 moles
Volume of solution = 0.500 L
Putting values in above equation, we get:
pH + pOH = 14
We are given:
pH = 8.08
Putting values in above equation, we get:
The unknown salt given are formed by the combination of weak acid and strong acid which is NaOH
The chemical equation for the hydrolysis of ions follows:
<u>Initial:</u> 0.1
<u>At eqllm:</u> 0.1-x x x
Concentration of
The expression of for above equation follows:
Putting values in above expression, we get:
where,
= Ionic product of water =
= Acid dissociation constant
= Base dissociation constant =
Putting values in above equation, we get:
We know that:
So, the calculated is approximately equal to the
of HF
Hence, the unknown salt is NaF