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3 years ago

How many atoms are in 3.5 moles of NaCl?

Chemistry

1 answer:

Ivenika [448]3 years ago

5 0

Answer:

2.11 ×10²⁴ atoms

Explanation:

Given data:

Number of moles of NaCl = 3.5 mol

Number of atoms = ?

Solution:

It is known that 1 mole contain 6.022×10²³ atoms. The number 6.022×10²³ is called Avogadro number.

3.5 mol ×6.022×10²³ atoms / 1 mol

21.1 ×10²³ atoms

2.11 ×10²⁴ atoms

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3 years ago

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3 years ago

Help

Jet001 [13]

Answer:

Explanation:

The formation of ion occurs when an atom that is said to be neutral gains or losses electrons.

At the time it gains electrons, it is regarded that a negative ion (anion) is formed.

When it loses electron, it is regarded that a positive ion (cation) is formed.

Atomic number = No of protons and electrons occurring in a neutral atom.

Given that:

Protons = 14

electron = 18

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= 14 - 18

= -4

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= +2

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3 years ago