atmospheric pressure at elevations of 8000 feet averages about 0.72 atmospheres. Would a cabin pressurized at 500 mm hg meet fed
1 answer:
Answer:
Yes, but it must be kept at that value and do not let it to decrease more.
Explanation:
Hello.
In this case, in order to substantiate whether the cabin meet the federal standards, we need to convert the 500 mmHg to atm and compare the result with 0.72 atm by knowing that 1 atm equals 760 mmHg:
Thus, since 0.66 atm is 0.06 atm away from the federal standard we can infer that it may meet the federal standard, however, it would not be recommended to let the pressure decrease more than that.
You might be interested in
Answer : The correct option is (d) a solution of 0.10 M NaOH
Explanation :
<u>(a) a solution of pH 3.0</u>
First we have to calculate the pOH.
Now we have to calculate the concentration.
Thus, the concentration is,
<u>(b) a solution of 0.10 M </u>
As we know that 1 mole of is a weak base. So, in a solution it will not dissociates completely.
So, the concentration will be less than 0.10 M
<u>(c) a solution with a pOH of 12.</u>
We have to calculate the concentration.
Thus, the concentration is,
<u>(d) a solution of 0.10 M NaOH</u>
As we know that is a strong base. So, it dissociates to give
ion and
ion.
So, 0.10 M of in a solution dissociates to give 0.10 M of
ion and 0.10 M of
ion.
Thus, the concentration is, 0.10 M
<u>(e) a solution of
</u>
As we know that 1 mole of in a solution dissociates to give 1 mole of
ion and 1 mole of
ion.
So, of
in a solution dissociates to give
of
ion and
of
ion.
The concentration of ion is
First we have to calculate the pH.
Now we have to calculate the pOH.
Now we have to calculate the concentration.
Thus, the concentration is,
From this we conclude that, a solution of 0.10 M NaOH possess the greatest concentration of hydroxide ions.
Hence, the correct option is (d)