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2 years ago

What is empirical formula?

Chemistry

2 answers:

Ulleksa [173]2 years ago

6 0

Answer:

the empirical formula of a chemical compound is the simplest whole number ratio of atoms present in a compound.

from the image

N2O4 will be NO2

P4O10 will be P2O5

and so on

Explanation:

brainliest plz

Evgen [1.6K]2 years ago

6 0

a formula giving the proportions of the elements present in a compound but not the actual numbers or arrangement of atoms.

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Answer:

a. increase

Explanation:

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3 years ago

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3 years ago

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Answer:

1.5 × 10⁻⁹M

Explanation:

1. Equilibrium equation

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2. Equilibrium constant

The liquid substances do not appear in the expression of the equilibrium constant.

$k_c=\dfrac{[HBr(g)]^2}{[H_2]}=4.8\times 10^8M$

3. ICE table.

Write the initial, change, equilibrium table:

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I 0.400 0

C - x +2x

E 0.400 - x 2x

4. Substitute into the expression of the equilibrium constant

$4.8\times 10^8=\dfrac{(2x)^2}{0.400-x}$

5. Solve the quadratic equation

192,000,000 - 480,000,000x = 4x²

x² + 120,000,000x - 48,000,000 = 0

Use the quadratic formula:

$x=\dfrac{-120,000,00\pm\sqrt{(120,000,000)^2-4(1)(-48,000,000}}{2(1)}$

The only valid solution is x = 0.39999999851M

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3 years ago

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answer: 3.40625 moles

Explanation: see the attached pics

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2 years ago

Two gases are combined and sealed in a 2.0 L container. The 3.0 L of argon gas and 1.0 L of xenon gas each exert 1.00 atm pressu

mariarad [96]

Answer:

Unless they chemically react with each other, the individual gases in a mixture of gases do not affect each other’s pressure. Each individual gas in a mixture exerts the same pressure that it would exert if it were present alone in the container . The pressure exerted by each individual gas in a mixture is called its partial pressure.

Explanation:

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2 years ago

What is empirical formula?​

What is empirical formula?