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expeople1 [14]
3 years ago
15

When each of the following processes reach equilibrium, does the system in question contain mostly reactants, mostly products, o

r fairly equal concentrations of both reactants and products? Justify your answers.
a. 2 H2(g) +02(g)2 H20(g)
b. H2(g + Br2(g)2HBr(g) K. 91 x 1080 at 25°C K-114 x 1021 at 25°C
Chemistry
1 answer:
jasenka [17]3 years ago
7 0

Answer:

Mostly products

Explanation:

Given the very large equilibrium constants for the two reactions we can consider them to be essentially 100 % complete to the product side.

The equilibrium constant for the reactions are given by:

a. K = p H₂O ² / (p H₂ ² x  p O₂ ) where p are the pressures  K = 91 x 10⁸⁰

b. K = p HBr ² / ( p H₂ x p Br₂ )   K = 114 x 10²¹

These two number are so big that  essentially very, very little amount of reactants are present after reaction.

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sergij07 [2.7K]

Answer:

b. 2.28 M

Explanation:

The reaction of neutralization of NaOH with H2SO4 is:

2NaOH + H2SO4 → Na2SO4 + 2H2O

<em>Where 2 moles of NaOH react per mole of H2SO4</em>

<em />

To solve the concentration of NaOH we need to find the moles of H2SO4. Using the chemical equation we can find the moles of NaOH that react and with the volume the molar concentration as follows:

<em>Moles H2SO4:</em>

45.7mL = 0.0457L * (0.500mol/L) = 0.02285 moles H2SO4

<em>Moles NaOH:</em>

0.02285 moles H2SO4 * (2moles NaOH / 1 mol H2SO4) = 0.0457moles NaOH

<em>Molarity NaOH:</em>

0.0457moles NaOH / 0.020L =

2.28M

Right option:

<h3>b. 2.28 M</h3>
7 0
2 years ago
What causes atoms to form covalent bonds?
navik [9.2K]

Answer:

to attain stability atoms form covalent bonds

7 0
1 year ago
A
Mnenie [13.5K]

Answer:

it should be the second one since London dispersion causes interaction between molecules.

hope I helped.

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I believe A is you’re answer
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