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3 years ago

What is the oxidation number for CI? -2 +2 -1 +1

Chemistry

1 answer:

jeka943 years ago

8 0

Answer:

-1

Explanation:

Chlorine is present in group seventeen. It has seven valance electrons. it is the member of halogen group. These are six elements Fluorine, Chlorine, Bromine, Iodine, Astatine. Halogens are very reactive these elements can not be found free in nature. Their chemical properties are resemble greatly with each other. All halogen member need one electron to complete the octet and thus show -1 charge.

Properties of chlorine:

1. it is greenish-yellow irritating gas.

2. its melting point is 172.2 K

3. its boiling point is 238.6 K

4. it is disinfectant and can kill the bacteria.

5. it is also used in manufacturing of paper, paints and textile industries.

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3 years ago

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3 years ago

What is the molarity (M) of .5 liter of a solution that has 205 g of NaCl dissolved in it?

jeka94

Answer:

<h2>Molarity = 7 mol / L</h2>

Explanation:

Since the mass of NaCl and it's volume has been given we can find the molarity by using the formula

<h3> $C = \frac{m}{M \times v}$ </h3>

where

C is the molarity

m is the mass

M is the molar mass

v is the volume

From the question

v = 0.5 L

m = 205 g

We must first find the molar mass and then substitute the values into the above formula

M( Na) = 23 , M( Cl) = 35.5

Molar mass of NaCl = 23 + 35.5 =

58.5 g/mol

So the molarity of NaCl is

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C = 7.00854

We have the final answer as

<h3>Molarity = 7 mol / L</h3>

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3 years ago

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Answer:

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Explanation:

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2 years ago

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