In a laboratory experiment,john uses a mesh to separate soil particles from water.what technique of separation is he using?

hat is the pressure of CO(g) in equilibrium with the CO2(g) and O2(g) in the atmosphere at 25 ????C? The partial pressure of O2(

Lubov Fominskaja [6]

Answer:

The partial pressure of CO is 5.54x10⁻⁴⁹atm. You shouldn't worry because it is very low pressure

Explanation:

First, the balanced reaction is:

CO + 1/2O₂ → CO₂

The energies of formation are:

ΔG(CO)=-137.168kJ/mol

ΔG(O₂)=0

ΔG(CO₂)=-394.359kJ/mol

The energy of the reaction is:

$delta-G_{reaction} =delta-G_{CO_{2} } -(delta-G_{CO} +1/2delta-G_{O_{2} } )\\delta-G_{reaction}=-394.359-(-137.168+0)=-257.191kJ/mol$

The expression for calculate the partial pressure of CO is:

$p_{CO} =\frac{p_{CO2} }{p_{O_{2} }^{1/2}*exp^{-\frac{delta-G}{RT} } } \\p_{CO}=\frac{3x10^{-4} }{0.2^{1/2}*exp(-\frac{-257.191*1000}{8.314*298} ) } \\p_{CO}=5.54x10^{-49} atm$

5 0

2 years ago

Rank the following 0.100 M solutions in order of increasing H3O+ concentration:

Inessa05 [86]

Answer:

HCN < HOCl < HF

Explanation:

The larger the Kₐ value, the stronger the acid.

6.2 × 10⁻¹⁰ < 4.0 × 10⁻⁸ < 6.3 × 10⁻⁴

HCN < HOCl < HF

weakest stronger strongest

5 0

3 years ago

Use the periodic table and example bond table to answer the question.

lyudmila [28]

In keeping with the general trends, K-Br will have the smallest bond energy. The bond energy refers to the energy that keeps the atoms in a bond together.

<h3>What is bond energy?</h3>

Bond energy is the energy that is required to hold atoms together in a bond. This energy must also be supplied when the atoms are to be separated.

We have the bond energies of each of the bons in the question, we have to note that the the smallest value of bond energy is Na-Br hence in keeping with the general trends, K-Br will have the smallest bond energy.

Learn more about bond energies: brainly.com/question/14842720?

7 0

1 year ago

List five household items that contain the same chemicals as cigarettes.

WITCHER [35]

Five household items that contain the same chemicals as cigarettes :-

Perfume
Household cleaning products
Beauty Products
Sunscreen
Water bottles

They contain toxic substances!

hope it helps!

5 0

2 years ago

Which description lists Earth's layers from most superficial to deepest?

Zanzabum

Lithosphere, asthenosfhere , lower mantle

8 0

3 years ago

Read 2 more answers