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3 years ago

Consider the following gas phase reaction:

Chemistry

1 answer:

snow_tiger [21]3 years ago

6 0

Answer:

2NO(g) + O2(g) --> 2NO2(g)

now 400 ml of NO × 2 mol of NO2/2 mol of NO

= 400 ml of NO2

now 500 ml of O2 × 2 mol of NO2/1 mol of O2

= 1000 ml of NO2

now 400 ml of NO2 × 1 mol of O2/2 mol of NO

= 200 ml

subtract that from 500 ml of total i.e. 500-200 =300 ml

The total volume of the reaction mixture is 1000 ml -300ml = 700 ml

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You collect a sample of gases from an indoor pool area. The sample contains air and water vapor. The total pressure is 100.18 ki

nikitadnepr [17]

Here we have to choose the partial pressure exerted by the air in the given sample among the given options.

The partial pressure of the air in the sample is C. 96.82 kPa.

As per the Dalton's law of partial pressure the total pressure of the gas in the pool (P) is equivalent to the summation of the partial pressure of water vapor and air pressure.

Mathematically we may write:

$P_{Total}= P_{water vapor} + P_{Air}$

Now the $P_{Total} = 100.18 kilopascalsP_{water vapor} = 3.36 kilopascals.On plugging the values:100.18 kilopascals = 3.36 kilopascals + P_{Air}$

Or, P_{Air}[/tex] = (100.18 - 3.36) kilopascals

Or, P_{Air}[/tex] = 96.82 Kilopascals.

Thus the partial pressure of the air in the sample is C. 96.82 kPa.

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3 years ago

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4 years ago

How many atoms of hydrogen are in two moles of ch4?

ziro4ka [17]

There are four Hydrogen atoms in one molecule of Methane (CH₄).
And there are 6.022×10²³ molecules in 1 mole of CH₄.
So,
Number of Hydrogen atoms is 1 mole of CH₄ are,

= 6.022 × 10²³ × 4

= 2.4 ×10²⁴ Hydrogen Atoms

Now calculating for 2 moles,

As,
1 mole of CH₄ contains = 2.4 ×10²⁴ Hydrogen Atom
Then,
2 moles of CH₄ will contain = X Hydrogen Atoms

Solving for X,
X = (2 moles × 2.4 ×10²⁴ Hydrogen Atom) ÷ 1 mole

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4 years ago

What is an equilibrium constant

skelet666 [1.2K]

The equilibrium constant of a chemical reaction is the value of the reaction quotient when the reaction has reached equilibrium. An equilibrium constant value is independent of the analytical concentrations of the reactant and product species in a mixture, but depends on temperature and on ionic strength.

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3 years ago

This question deals with waste disposal in the Solutions and Spectroscopy experiment. What should be done to waste solutions con

Korvikt [17]

Answer:

b. It should be dumped in a beaker labeled "waste copper" on one's bench during the experiment.

d. It should be disposed of in the bottle for waste copper ion when work is completed.

Explanation:

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It never should be returned to the bottle containing the solution, since it can contaminate the solution of the bottle.

In the Solutions and Spectroscopy experiments there is always wastes.

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3 years ago