Answer:
-87098.82kJ
Explanation:
Hello,
This process could be attained into two steps due to the specified conditions at assuming that it is at -33°C at the beginning:
Δ
Δ
Δ
Thus:
Δ
Once the ammonia is gaseous, the burning chemical reaction is:

So the enthalpy of reaction for the given amount of ammonia is:
Δ
Finally, the total enthalpy is:
Δ
Best regards.
Explanation:
Permanganate is general name for the chemical compound which containes manganate (VII) ion. Permanganate(VII) ion is strong oxidizing agent as manganese is in +7 oxidation state and can be easily reduced and oxidize others.
The balanced half reaction for reduction of the permanganate ion,
to manganese ion,
is shown below:

it will get warm or spread out into the water or
Explanation:
translate the following word equation in the form of balance come alive with your number is aluminium + hydrochloric acid and Aluminium chloride + nitrogen
Answer:
The pH of the solution is 4.69
Explanation:
Given that,
Mass of potassium = 2.643 grams
Weight of water = 50.00 mL
Weight of HCl=100.00 ml
Mole = 0.120 M
We know that,
is a basic salt.
Let's write it as KY.
The acid
would become HY.
We need to calculate the moles of KY
Using formula of moles



The reaction is

The number of moles of KY is 20.98 m
initial moles = 20.98
Final moles 
We need to calculate the value of pKa(HY)
Using formula for pKa(HY)



We need to calculate the pH of the solution
Using formula of pH
![pH=pKa+log(\dfrac{[KY]}{[KH]})](https://tex.z-dn.net/?f=pH%3DpKa%2Blog%28%5Cdfrac%7B%5BKY%5D%7D%7B%5BKH%5D%7D%29)
Put the value into the formula


Hence, The pH of the solution is 4.69