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alexandr1967 [171]
3 years ago
9

Consider the chemical system co + cl2 cocl2; k = 4.6 ? 109 l/mol. 2. how do the equilibrium concentrations of the reactants comp

are to the equilibrium concentration of the product?
a.they are much smaller.

b.they are much bigger.

c.they are about the same.

d.they have to be exactly equal.

e.you can't tell from the information given.
Chemistry
1 answer:
ikadub [295]3 years ago
3 0
<span>they are much bigger because </span><span>equilibrium constant shows ratio of  </span><span>concentrations of the reactants to the equilibrium concentration of the product.</span>
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Fe2O3 + 2Al = 2Fe + Al2O3 is this a redox reaction
katovenus [111]

Answer:

<h3>2Al+ Fe2O3 gives 2Fe + Al2O3. The given reaction is a redox reaction. As oxidation and reduction are taking place simultaneously.</h3>

Explanation:

like this...Identify oxidation and reduction with their agents:

<h3>•2Al+ Fe2O3 →2Fe + Al2O3</h3>

<h3>•Fe2O3 is reduced to Fe whereas Al is oxidized to Al2O3</h3>

<h3>In the above reaction:</h3>

<h3>Oxidizing agent:Fe2O3</h3>

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5 0
3 years ago
An analytical chemist is titrating 118.3 mL of a 0.3500 M solution of butanoic acid (HC3H7CO2) with a 0.400 M solution of KOH. T
TEA [102]

Answer:

pH = 12.33

Explanation:

Lets call HA = butanoic acid and A⁻ butanoic acid and its conjugate base butanoate respectively.

The titration reaction is

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number of moles of HA :   118.3 ml/1000ml/L x 0.3500 mol/L = 0.041 mol HA

number of  moles of OH  : 115.4 mL/1000ml/L x 0.400 mol/L  = 0.046 mol A⁻

therefore the weak acid will be completely consumed and what we have is  the unreacted strong base KOH which will drive the pH of the solution since the contribution of the conjugate base is negligible.

n unreacted KOH = 0.046 - 0.041 = 0.005 mol KOH

pOH = - log (KOH)

M KOH = 0.005 mol / (0.118.3 +0.1154)L = 0.0021 M

pOH = - log (0.0021) = 1.66

pH = 14 - 1.96 = 12.33

Note: It is a mistake to ask for the pH of the <u>acid solutio</u>n since as the above calculation shows we have a basic solution the moment all the acid has been consumed.

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3 years ago
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bazaltina [42]

Explanation:

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I believe the answer is C which is supporting a variety of organisms, cleaning oil from oceans, producing oxygen.
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If a 0.10 M solution of a colored substance has a maximum absorbance at 500 nm and an absorbance of 0.26 M at this wavelength, w
Mashcka [7]
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A = kC
Using the first conditions, ewe solve for k.
0.26 = k (0.10)
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A = kC
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Therefore, the absorbance at a concentration of 0.20 M and wavelength of 500nm is 0.52.
7 0
3 years ago
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