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Paul [167]
4 years ago
5

A mixture initially contains A, B, and C in the following concentrations: [A] = 0.350 M , [B] = 0.900 M , and [C] = 0.350 M . Th

e following reaction occurs and equilibrium is established: A+2B⇌C At equilibrium, [A] = 0.150 M and [C] = 0.550 M . Calculate the value of the equilibrium constant, Kc. Express your answer numerically.
Chemistry
1 answer:
grigory [225]4 years ago
5 0

Answer:

Kc = 1.23456790123

Explanation:

Kc = [C} / ([A} * [B]^2)

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Explanation:

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4 years ago
Write the Ksp expression for the sparingly soluble compound chromium(III) hydroxide, Cr(OH)3.
Klio2033 [76]

Answer and Explanation: Ksp is the Solubility Product Constant and is the equilibrium constant that happens when a solid is dissolved in an aqueous solution.

The dissolution of chromium (III) hydroxide:

Cr(OH)_{3}_{(s)} ⇄ Cr^{3+}_{(aq)} + 3OH^{-}_{(aq0)}

Every equilibrium constant is of the form:

K = \frac{[products]^{coefficient}}{[reagents]^{coefficient}}

Then,

K_{sp} = [Cr^{3+}_{(aq)}][OH^{-}_{aq}]^{3}

The reagent is not included because solids don't take part in euqilibrium constants.

<u>So, Ksp of chromium (III) hydroxide is </u>K_{sp} = [Cr^{3+}_{(aq)}][OH^{-}_{aq}]^{3}<u />

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4 years ago
What tool would you use to find the mass of 10 marbles?​
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I think you would use a balance!

Explanation:

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3 years ago
The correct number of significant figures in the number 1.250100 is:
Elenna [48]
The correct number of sig figs for this number is 7 because all whole numbers count and all zeros after the decimal counts too. So, all the numbers count, which is 7.
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4 years ago
It take 38.70cm³ of 1.90 NaO4 to neutralize 10.30cm³ of H2So4 in a battery. Calculate the molar concentration of H2So4
Anna35 [415]

Answer:

The molar concentration of base Cb = 14.2777M

Explanation:

Volume of acid Va = 38.70cm^3,

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Volume of Base Vb = 10.30cm^3

Also, Equation of the reaction

H2SO4 + 2NaOH = Na2SO4 + 2H2O

No of mole of acid Na = 1

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CaVa/CbVb = Na/Nb

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Therefore, Cb = 14.2777M

The molar concentration of base Cb = 14.2777M

5 0
3 years ago
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