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Mars2501 [29]
3 years ago
6

Determine the only possible 2 ion for which the following two conditions are both satisfied: The net ionic charge is one-tenth t

he nuclear charge. The number of neutrons is four more than the number of electrons. Express your answer as an ion and as an isotope separated by a comma.
Chemistry
1 answer:
Nadusha1986 [10]3 years ago
3 0

Explanation:

The answer is the Calcium ion. It satisfies the conditions of the question.

Condition 1

The net ionic charge is one-tenth the nuclear charge.

In the Calcium ion,  Ca²⁺. The nuclear charge in this ion is 20. The net ionic charge is 2.

2 / 20 = 1 / 10. So the net ionic charge is indeed one tenth of the nuclear charge.

Condition 2

The number of neutrons is four more than the number of electrons.

Mass Number of Ca²⁺ = 44

Atomic Number = 20

Neutrons =  Mass Number - Atomic Number = 44 -20 = 24

Number of electrons = 20 - 2 = 18

Since Number of Neutrons = 22, Number of electrons = 18. This condition also holds.

As an ion and as an isotope = Ca²⁺, Ca - 42

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Answer:

The answer to your question is P = 0.18 atm

Explanation:

Data

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Volume = 2.3 l

Pressure = ?

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constant of ideal gases = 0.082 atm l/mol°K

Process

1.- Convert the mass of O₂ to moles

                16 g of O₂ -------------------- 1 mol

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                    x = (0.29 x 1)/16

                    x = 0.29/16

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2.- Convert the temperature to °K

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3.- Use the ideal gas law ro find the answer

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-Solve for P

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-Substitution

              P = (0.018 x 0.082 x 282) / 2.3

-Simplification

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-Result

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