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3 years ago

How many electrons in an atom can have the following quantum

Chemistry

1 answer:

gavmur [86]3 years ago

7 0

The answer for the following question is explained.

Therefore the number of electrons present with the values n = 5, l = 2, m = -2, s = +1/2 is one(1).

Explanation:

Here;

n represents the principal quantum number

l represents the Azimuthal quantum number

m represents magnetic quantum number

s represents spin quantum number

n = 5,

l = 2,

m = -2,

s = +1/2

Here, it implies 5d orbital.

In the 5d orbital, 10 electrons.

As the magnetic quantum number is -2, and so it can have 1 electron.

Therefore the number of electrons present with the values n = 5, l = 2, m = -2, s = +1/2 is one(1)

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At 25 °C, what is the hydroxide ion concentration, [OH-], in an aqueous solution with a hydrogen ion concentration of

Otrada [13]

The hydroxide ion concentration, [OH-] = 2.439 x 10⁻¹⁰

<h3>Further explanation</h3>

Equilibrium of water and the ions :

$\tt 2H_2O(l)\rightarrow H_3O^+(aq)+OH^-(aq)$

$\tt Kc=\dfrac{[H_3O^+][OH^-]}{H_2O}$

Kc[H₂O] is the ion equilibrium constant for water ⇒ Kw.

The product of the concentrations of these ions (H₃O⁺ and OH⁻)at equilibrium at 25°C is 1.0 x 10⁻¹⁴ M

[H₃O⁺] [OH⁻] = 1.0 x 10⁻¹⁴ M = Kw

The hydrogen ion concentration of [H⁺]=4.1 x 10⁻⁵ M, so the hydroxide ion concentration, [OH-] :

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3 years ago

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Answer:

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3 years ago

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3 years ago

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Explanation:

Salts are formed when an acid reacts with a base during a neutralization reaction.

When a strong acid and a weak base reacts, it leads to the formation of acidic salt.

When a strong base and weak acid reacts, it leads to the formation of basic salt.

When a strong acid and strong base or weak acid and weak base reacts, it leads to the formation of neutral salts.

$Ba_3(PO_4)_2$ is a salt which is formed by the combination of $H_3PO_4\text{ and }Ba(OH)_2$ . Phosphoric acid is a weak acid and barium hydroxide is a strong base. So, the given salt is a basic salt.

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4 years ago