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AlexFokin [52]
3 years ago
12

Which compound decreases in solubility as the temperature of the solution is increased from 10c to 50c

Chemistry
1 answer:
Marysya12 [62]3 years ago
5 0

Answer:

<u><em></em></u>

  • <u><em>2)NH</em></u><em><u>₃</u></em>

Explanation:

The answer choices of this question are:

  • 1)NH₄Cl
  • 2)NH₃
  • 3)NaNO₃
  • 4)NaCl
<h2 /><h2>Solution</h2>

The key to answer this question is to realize that <em>NH₃</em> is a gas at the given temperatures.

The solutilibty of all gases always decreases when the temperature increases. Thus, the solubility of NH₃ will decrease when the temperature rises from 10ºC to 50ºC.

The reason for this behavior of gases is that the temperature and the kinetic energy of the particles are directly proportional. Thus, as the temperature incrases the kinetic energy of the particles increases.

As the kinetic energy of the molecules of gas in the liquid solution increases, their speeds also increase, meaning that more molecules will escape from the solution to the gas phase, leaving the soluton with less dissolved gas molecules.

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How many moles are equal to 89.23g of calcium oxide, CaO?
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1.59moles

Explanation:

Mass  of CaO = 89.23g

Unknown

Number of moles = ?

Solution:

The mole is a unit of measurement in chemistry used to delineate the number of particles an atom contains.

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learn more:

Number of moles brainly.com/question/1841136

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If the pressure of a gas sample is quadrupled and the absolute temperature is doubled, by what factor does the volume of the sam
Natasha_Volkova [10]

Answer:

D) 1/2

Explanation:

Using Ideal gas equation for same mole of gas as

\frac {{P_1}\times {V_1}}{T_1}=\frac {{P_2}\times {V_2}}{T_2}

Given,

P₂ = 4P₁

T₂ = 2T₁

Using above equation as:

\frac {{P_1}\times {V_1}}{T_1}=\frac {{P_2}\times {V_2}}{T_2}

\frac {{P_1}\times {V_1}}{T_1}=\frac {{4\times P_1}\times {V_2}}{2\times T_1}

V_2=\frac{1}{2}\times V_1

<u>The volume change by half of the original.</u>

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