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Diano4ka-milaya [45]

3 years ago

9

What determines the volume of a gas?

2 answers:

DaniilM [7]3 years ago

8 0

Explanation : Gases, unlike solids and liquids, have neither fixed volume nor shape. They are molded entirely by the container in which they are held. We have three variables by which we measure gases: pressure, volume, and temperature. ... From this, we derive the molar volume of a gas (volume/moles of gas).

Answer : The volume is determined by the pressure, the amount of gas present, and the temperature.

Fittoniya [83]3 years ago

6 0

Gases, unlike solids and liquids, have neither fixed volume nor shape. They are molded entirely by the container in which they are held.

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The energy released by a nuclear fusion reaction is produced when

Igoryamba

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2

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A solid mixture consists of 47.6g of KNO3 (potassium nitrate) and 8.4g of K2SO4 (potassium sulfate). The mixture is added to 130

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<u>Answer:</u> No crystals of potassium sulfate will be seen at 0°C for the given amount.

<u>Explanation:</u>

We are given:

Mass of potassium nitrate = 47.6 g

Mass of potassium sulfate = 8.4 g

Mass of water = 130. g

Solubility of potassium sulfate in water at 0°C = 7.4 g/100 g

This means that 7.4 grams of potassium sulfate is soluble in 100 grams of water

Applying unitary method:

In 100 grams of water, the amount of potassium sulfate dissolved is 7.4 grams

So, in 130 grams of water, the amount of potassium sulfate dissolved will be $\frac{7.4}{100}\times 130=9.62g$

As, the soluble amount is greater than the given amount of potassium sulfate

This means that, all of potassium sulfate will be dissolved.

Hence, no crystals of potassium sulfate will be seen at 0°C for the given amount.

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