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3 years ago

What is the charge of a hypothetical ion with 85 protons and 87 electrons?

1 answer:

3 0

There is a charge of -2 on an ion.
A neutral atom always have equal number of protons and electrons. if an atom loses and electron, an ion gets positive charge and if an atom gains electron it gets negative charge.
An atom with 85 protons means it also have 85 electrons but when it gains two electrons it becomes ion and then the number of electrons is 87. So that is why an ion have -2 charge.

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If 0.50 mol/L of butane is added to the original equilibrium mixture and the system shifts to a new equilibrium position, what i

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Consider the isomerization of butane with equilibrium constant is 2.5 .The system is originally at equilibrium with :

[butane]=1.0 M , [isobutane]=2.5 M

If 0.50 mol/L of butane is added to the original equilibrium mixture and the system shifts to a new equilibrium position, what is the equilibrium concentration of each gas?

Answer:

The equilibrium concentration of each gas:

[Butane] = 1.14 M

[isobutane] = 2.86 M

Explanation:

Butane ⇄ Isobutane

At equilibrium

1.0 M 2.5 M

After addition of 0.50 M of butane:

(1.0 + 0.50) M -

After equilibrium reestablishes:

(1.50-x)M (2.5+x)

The equilibrium expression will wriiten as:

$K_c=\frac{[Isobutane]}{[Butane]}$

$2.5=\frac{2.5+x}{(1.50-x)}$

x = 0.36 M

The equilibrium concentration of each gas:

[Butane]= (1.50-x) = 1.50 M - 0.36M = 1.14 M

[isobutane]= (2.5+x) = 2.50 M + 0.36 M = 2.86 M

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3 years ago

What happens when acetylene reacts with silver powder?

horrorfan [7]

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2 years ago

A solution that contains a large amount of salt and a small amount of water is said to be a _______ solution. A. diffused B. uns

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Answer:

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Explanation:

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2 years ago

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In the asked question, it is given that the water is the solvent and from the given solutes we have to pick which would make an aqueous solution with the highest concentration of solute possible.

Thus the most appropriate answers could be the Ammonia and hexanol which can make the highest possible concentration of solute as ammonia is the gas which is highly soluble in water and hexanol is an alcohol which has an affinity for water. Thus the correct option is I & III

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Answer:

New volume is 25.0 mL

Explanation:

Let's assume the gas sample behaves ideally.

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