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wariber [46]
3 years ago
10

Calculate the equilibrium constant for the reaction using the balanced chemical equation and the concentrations of the substance

s at equilibrium.
Use the

appropriate significant figures in reporting the answers.

CO(g) + H2O(g) ⇌ CO2(g) + H2(g) [CO] = 0.0590 M; [H2O] = 0.00600 M;

[CO2] = 0.0410 M; [H2] = 0.0410 M

K =______________-
Chemistry
1 answer:
Oliga [24]3 years ago
3 0

Answer:

4.75 is the equilibrium constant for the reaction.

Explanation:

CO(g)+H_2O(g)\rightleftharpoons CO_2(g)+H_2(g)

Equilibrium concentration of reactants :

[CO]=0.0590 M,[H_2O]=0.00600 M

Equilibrium concentration of products:

[CO_2]=0.0410 M,[H_2]=0.0410 M

The expression of an equilibrium constant is given by :

K_c=\frac{[CO_2][H_2]}{[CO][H_2O]}

K_c=\frac{0.0410 M\times 0.0410 M}{0.0590M\times 0.00600 M}

K_c=4.75

4.75 is the equilibrium constant for the reaction.

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In the reaction MgCl2 + 2KOH Mg(OH)2+ 2KCI, if 3 moles MgCh are added to 4 moles KOH, what determines how much Mg(OH)2 is made?
gulaghasi [49]

Answer:-

KOH determines how much Mg(OH)2 is made.

2 mol of Mg(OH)2 formed

Explanation:-

The balanced equation is

MgCl2 + 2KOH --> Mg(OH)2+ 2KCI,

From seeing the coefficients we notice

2 mol of KOH reacts with 1 mol of MgCl2

4 mol of KOH reacts with 1 x 4 / 2 = 2 mol of MgCl2

3 moles of MgCl2 was added but only 2 mol react.

So we see there is excess MgCl2 .

Hence KOH is the limiting reactant.

So KOH determines how much Mg(OH)2 is made.

We see from the balanced chemical equation,

2 mol of KOH gives 1 mol of Mg(OH)2.

4 mol of KOH will give 1 x 4 /2 = 2 mol of Mg(OH)2.

7 0
4 years ago
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Nimfa-mama [501]
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6 0
4 years ago
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lana66690 [7]

1. C

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7 0
3 years ago
Is this statement true or false?<br><br> Gymnosperms reproduce using seeds, but angiosperms do not.
spayn [35]

Answer:

FALSE!

Explanation:

Gymnosperms do use seeds but are exposed like the pine cones of pines. Angiosperms still have seeds, however, they flower or fruit.

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3 years ago
Determine the pH and pOH of a soft drink with a 0.001 M H ^ 4 and state If It acidic, basic, or neutral
Sonbull [250]

Answer:

pH= 3, 00 (acidic solution), pOH= 7,00

Explanation:

The pH indicates the acidity or basicity of a substance. PH values between 0 and less than 7 indicate acidic solutions, 7 neutral and higher than 7 to 14 basic. It is calculated as

pH = -log (H 30+)

pH= -log (0.001)

pH=3, 00  (the solution is acidic because the pH is less than 7,00)

We know that the sum of the pH and pOH is 14, so we solve pOH:

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3 0
3 years ago
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