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3 years ago

A solution contains 50g of kcl per 100g of water at 100 degrees Celsius. Is solution saturated, unsaturated or supersaturated

Chemistry

1 answer:

hram777 [196]3 years ago

5 0

<u>Answer:</u>

The solution is Unsaturated

<u>Explanation:</u>

Nature of solution (saturated , unsaturated or supersaturated) depends on solubility of that salt in water. Because solubility of KCl in water is about 360.5g / 100g of water at 100 degree celcius. So, some amount of KCl will remain undissolved in water.Hence, it is an unsaturated solution.

We are given 50g of KCl per 100g water at 100 degrees celcius,

now mass of KCl = mass of K + mass of Cl = 39+35.5 = 74.5g

So, Molar mass of KCl = $\frac{50}{74.5}$ = 0.6711 moles

And Molar mass of 100g water = $\frac{100}{18}$ = 5.55moles

Now, to find property of solution we divide the molar masses,

$\frac{0.67}{5.55}$ = 12.07% this is the quantity of solute in water which makes the solution an unsaturated solution.

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RideAnS [48]

The E°half-cell of the (3) is 0.33 volts .

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Identify the type of bonding within each substance. Co ( s ) ionic covalent metallic CoCl 2 ( s ) covalent ionic metallic CCl 4

krok68 [10]

Answer:

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2. CoCl₂ ( s ) - ionic bonding

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Explanation:

Metallic bonding -

It is the type of bonding present between the atoms of the metals , via the electrostatic interaction between the metal and the delocalized electrons , is known as metallic bonding .

For example ,

Mostly metals show metallic bonding .

Ionic bonding -

It is the type of bonding present between the ions i.e. , the cation and the anion is known as ionic bonding .

For example ,

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For example ,

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Hence , from the question ,

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2. CoCl₂ ( s ) - ionic bonding

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