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A Sample Of Oxygen Gas Is Collected Over Water At 22°C And 98.67 KPa Pressure. If The Partial Pressure Of The Water Is 2.67 KPa,

Gwar [14]

Answer:

The partial pressure of the oxygen gas is 96.00 KPa

Explanation:

The law of partial pressures states that, in a mixture of gases, the total pressure of the mixture is equal to the sum of the individual pressures of each gas, as if each gas were alone in the mixture.

So:

Total pressure = ∑ individual pressures

Total pressure = Partial pressure of the water + Partial pressure of oxygen

98.67 KPa = 2.67 KPa + Partial pressure of oxygen

Partial pressure of oxygen = 98.67 KPa - 2.67 KPa

Partial pressure of oxygen = 96.00 KPa ← answer

4 0

4 years ago

Which of the following isoelectronic series is correctly ranked from largest ionic radius to smallest ionic radius? 1. N 3−, O 2

love history [14]

Answer:

Option 1: N⁻³ > O⁻² > F⁻ > Na⁺ > Mg⁺²

Explanation:

Ionic radius is the radius of an atom´s ion in ionic crystal structure. In an ion that lose an electron, to form a cation, the radius of the ion gets smaller, because the repulsion between electrons decrease because fewer electrons are present. Conversely, adding on electron to a neutral atom, to form an anion, causes electron - electron repulsions to increase, so the size of the radius of the ion gets bigger.

Isoelectronic species are ions or elements that have the same number of electrons in their electronic shells but have different overall charges, because of their different atomic numbers.

In a isolelectronic series (same number of electrons), the increase of the positive charge (given by the number of protons in the nucleus), will cause a decrease in radius beacuse the greater electrostatic attraction between the electrons and the nucleus. Consequently, the ion with the greatest nuclear charge will have the smallest ionic radius and the ion with the smallest nulear charge will have the largest ionic radius.

We will use this principle to solve our problem.

In our case, the given ions are:

N⁻³ : Z = 7, e⁻ = 10
O⁻²: Z= 8, e⁻ =10
F⁻: Z = 9, e⁻ = 10
Na⁺: Z= 11, e⁻ = 10
Mg⁺²: Z=12, e⁻ =10

where Z= number of protons, and e⁻ = number of electrons.

Hence the decreasing order of ionic radius is:

N⁻³ > O⁻² > F⁻ > Na⁺ > Mg⁺²

Have a nice day!

4 0

3 years ago

Convert 154 kPa to atmospheres

mixer [17]

Answer:

1.51986 atm

Explanation:

You can also search "154 kPa to atm" and a converter will appear

7 0

3 years ago

Explain how to separate sugar from supersaturated sugar solution guys pls help

brilliants [131]

A “supersaturated” solution contains more dissolved material. supersaturated solutions lies in the temperature of the water. more sugar will dissolve in hot water than in cold. Meaning that by separating the 2, only the supersaturated sugar would dissolve leaving the regular sugar untouched.

5 0

3 years ago

If a female expresses trait l and the dad doesn't will the child have it

IRISSAK [1]

Answer:

yes

Explanation:

4 0

3 years ago