The amount of the nitrogen gas, N₂ molecules present is 2.68×10²² molecules
<h3>Avogadro's hypothesis </h3>
1 mole of N₂ = 6.02×10²³ molecules
<h3>How to determine the mole of N₂</h3>
We'll begin by calculating the number of mole of N₂. This can be obtained as follow:
- Mass of N₂ = 1.25 g
- Molar mass of N₂ = 28.02 g/mol
- Mole of N₂ =?
Mole = mass / molar mass
Mole of N₂ = 1.25 / 28.02
Mole of N₂ = 0.0446 mole
<h3>How to determine the molecules of N₂ present</h3>
From Avogadro's hypothesis,
1 mole of N₂ = 6.02×10²³ molecules
Therefore,
0.0446 mole N₂ = 0.0446 × 6.02×10²³
0.0446 mole N₂ = 2.68×10²² molecules
Thus, the molecules of N₂ present is 2.68×10²² molecules
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Number of Atoms in Methanol are calculated as,
Write chemical formula of Methanol,
CH₃-OH
Find out Subscripts:
There is only one subscript (₃) written after Hydrogen, it means there are 3 Hydrogen atoms attached to Carbon atoms.
Add all atoms in molecule:
Carbons = 1
Hydrogens = 4
Oxygens = 1
Total Atoms ______
6 Atoms
Answer:
280
Explanation:
total pressure=partial pressure (He)+partial pressure (N2)+partial pressure (H2)
Answer:
D) He
Explanation:
Helium is in the first period. It only has 1 valence electron so it's very reactive. (This could be completely wrong and I'm sorry if it is.)
The map that would I bring with me as I navigate the wilderness is Topographic maps.
<h3>Why carry Topographic maps?</h3>
Because topographic maps use contour lines to indicate the geometry of landforms, they are excellent for wilderness navigation (mountains, valleys, ridges, saddles).
Reading topographic maps has somewhat lost some of its appeal with the development of reliable, accurate GPS devices and phone navigation apps.
However, no matter how sophisticated and costly your equipment is, it could still run out of batteries, malfunction due to excessive dampness, cease functioning in the cold (cough, iPhones), or fall off a cliff and smash.
Additionally, the satellite signal that your device requires to locate you will always decide to go out at the worst possible time.
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