<h2>Hello!</h2>
The answer is: -97.23° C
<h2>Why?</h2>
Applying the Charles and Gay-Lussac's Law we have that:
Where:
<em>k </em>is the proportionality constant
<em>v</em> is the volume of the gas
<em>t</em> is the temperature of the gas
We also have the following relation:
Since we need to know the new temperature (T2) we can find it using the last equation, so:
We are asked to find the temperature in Celsius degrees, we must convert the result:
Therefore, the temperature is -97.23° C
Have a nice day!
The mass of 2.75 mol K₂S is 303.24 grams.
- Applying the mole concept:
Number of moles(n) = given mass(m) / molar mass(M)
n = m / M
- Now applying the formula for the number of moles-
i.e. number of moles of K₂S = mass of K₂S / Molas mass of K₂S
As per question, Molar mass of K₂S, M = 110.27 g/mol
and, number of moles of K₂S, n = 2.75 moles
2.75 = m / 110.27
m = 2.75 x 110.27
= 303.24
m = 303.24 grams.
Hence, the mass of 2.75 mol K₂S is 303.24 grams.
To learn more about the mole concept, refer to:
brainly.com/question/768852
# SPJ2
Answer:
B
Breaking the molecular bonds in the food releases stored chemical energy.
Explanation:
I hope it helps
Answer:
D 17 amu
Explanation:
because all you have to do is add 9+8=17 :)
D) reacts with oxygen
All other are physical properties.
