If the forward reaction goes close to completion and has a high yield, that means the concentration of products will be higher than the concentration of reactants.

So if the concentration of products is higher, Kc (equilibrium constant) will be greater than 1.

Recall the calculation for the equilibrium constant for reaction. Picture below might help you.

8 0

3 years ago

You are trying to determine the volume of the balloon needed to match the density of the air in the lab. You know that if you ca

defon

The equation to be used are:

PM = ρRT
PV = nRT
where
P is pressure, M is molar mass, ρ is density, R is universal gas constant (8.314 J/mol·K), T is absolute temperature, V is volume and n is number of moles

The density of air at 23.5°C, from literature, is 1.19035 kg/m³. Its molar mass is 0.029 kg/mol.

PM = ρRT
P(0.029 kg/mol) = (1.19035 kg/m³)(8.314 J/mol·K)(23.5+273 K)
P = 101,183.9 Pa

n = 0.576 g * 1 kg/1000 g * 1 mol/0.029 kg = 0.019862 mol
(101,183.9 Pa)V = (0.019862 mol)(8.314 J/mol·K)(23.5+273 K)
Solving for V,
V = 4.839×10⁻⁴ m³
Since 1 m³ = 1000 L
V = 4.839×10⁻⁴ m³ * 1000
V = 0.484 L

5 0

3 years ago

If hydrogen composes 11% of a 100 gram sample of water, what is the mass of the hydrogen in the sample?

RoseWind [281]

It is going to be 11% of 100
11/100*100=11gram

5 0

3 years ago

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Why is the sun considered the center of the solar system?

Margaret [11]

The center of the Solar system should be a point somewhere close to the Sun or may be within the Sun. ... Most planets in our solar system have a elliptical orbit. And we know that comets come all the way from beyond the orbit of Pluto and their orbits are very eccentric.

5 0

3 years ago

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