Answer:
B: is mostly empty space and contains a small, dense positive nucleus
Explanation:
The number of molecules : N = 1.505 x 10²³
<h3>Further explanation</h3>
Given
0.25 mol N₂O₄
Required
The number of molecules
Solution
Can be formulated
N=n x No
N = number of particles
n = mol
No = Avogadro's = 6.02.10²³
N = 0.25 x 6.02.10²³
N = 1.505 x 10²³
<h3>Answer : </h3>
<h3>→ TRUE </h3>
Explanation:
<h3>Air masses are large volumes of air that</h3><h3> have generally the same temperature and</h3><h3> pressure.</h3>
Answer:
The heat of vaporisation of methanol is "3.48 KJ/Mol"
Explanation:
The amount of heat energy required to convert or transform 1 gram of liquid to vapour is called heat of vaporisation
When 8.7 KJ of heat energy is required to vaporize 2.5 mol of liquid methanol.
Hence, for 1 mol of liquid methanol, amount of heat energy required to evaporate the methanol is =
= 3.48 KJ
So, the heat of vaporization
Therefore, the heat of vaporization of methanol is 3.48KJ/Mol
The answer is 5 liters of CH4(g).
I hope this helps. :)