Answer:
0.098 moles H₂S
Explanation:
The reaction that takes place is
- 2H₂(g) + S₂(g) ⇄ 2H₂S(g) keq = 7.5
We can express the equilibrium constant as:
- keq = [H₂S]² / [S₂] [H₂]² = 7.5
With the volume we can <u>calculate the equilibrium concentration of H₂</u>:
- [H₂] = 0.072 mol / 2.0 L = 0.036 M
<em>The stoichiometric ratio</em> tells us that <u>the concentration of S₂ is half of the concentration of H₂</u>:
- [S₂] = [H₂] / 2 = 0.036 M / 2 = 0.018 M
Now we <u>can calculate [H₂S]</u>:
- 7.5 = [H₂S]² / (0.018*0.036²)
So 0.013 M is the concentration of H₂S <em>at equilibrium</em>.
- This would amount to (0.013 M * 2.0 L) 0.026 moles of H₂S
- The moles of H₂ at equilibrium are equal to the moles of H₂S that reacted.
Initial moles of H₂S - Moles of H₂S that reacted into H₂ = Moles of H₂S at equilibrium
Initial moles of H₂S - 0.072 mol = 0.026 mol
Initial moles of H₂S = 0.098 moles H₂S
Answer: It depends on her as a person. Given the various ways people give/receive affection(Their love language), it cold vary anywhere from endless compliments all the way to doing nice things for you. Most common, is hanging out a lot and communication as a constant.
It could be either PP or Pp
Answer:
A = 0.691g/cm³
B = liquid A at the bottom, liquid B in the middle and the cube at the top
Explanation:
Hello,
a)
Density = mass / volume
Density = ?
Mass = 2.331g
Volume = ?
Length of the side = 1.5cm
Volume of a cube = L³
Volume of the cube = 1.50³
Volume = 3.375cm³
Density = mass / volume
Density = 2.331 / 3.375
Density = 0.691g/cm³
b) since the question doesn't require submitting a diagram, I would go ahead and answer it without any but explaining the basics for you.
Densities:
Liquid A = 1.004g/cm³
Liquid B = 0.6223g/cm³
Cube = 0.691g/cm³
If the three substance don't mix and are place in a granulated cylinder,
Liquid A would be at the bottom
Liquid B would stay at the middle
The cube would be at the top
Reason is that, when two immiscble liquid are placed in a container, the liquid with the higher density will stay at the bottom while that of lower will float on top.
