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3 years ago

What is the best method for removing water from a hydrated compound?

Chemistry

2 answers:

Readme [11.4K]3 years ago

7 0

Answer:

Heating to remove water of crystallization
Passing through a drying agent (deliquescent or hygroscopic substances)

Explanation:

If solid/crystals, compound can be dried by applying heat to remove the water of crystallization.

Drying agents are also utile in removing moisture from compounds in a dessicator. Substances which absorb water from air can be used as drying agents for gases. For instance, $CaCl_{2}$ , CaO or silica gel is suitable for drying gases, depending on reactivity of the substance.

Hatshy [7]3 years ago

6 0

Answer:

Heating is the best method

Explanation:

When a mass of crystals containing Water of crystallization is heated sufiiciently to a high temperature, water vapor may be driven off the crystals by the action of heat alone.

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3 years ago

A gas occupies 56 L at 73°C. What volume will the gas occupy if the temp. cools to 0°C?

vova2212 [387]

Answer:

44.2 L

Explanation:

Use Charles Law:

$\frac{V1}{T1} =\frac{V2}{T2}$

We have all the values except for V₂; this is what we're solving for. Input the values:

$\frac{56 L}{346K} =\frac{V2}{273K}$ - make sure that your temperature is in Kelvin

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$\frac{56*273}{346} = V2$

Therefore, V₂ = 44.2 L

It's also helpful to know that temperature and volume are linearly related. So, when temperature drops, so will volume and vice versa.

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2 years ago

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marin [14]

Answer:

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Explanation:

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2 years ago

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2 years ago