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sergiy2304 [10]
3 years ago
9

A certain chip W used in a circuit of a micro computer has a mass of 5.68 milligram ,calculate the amount of W in the micro comp

uter (W=28g/mol)​
Chemistry
1 answer:
Pavel [41]3 years ago
6 0

The amount of W : = 1.22 x 10²⁰

<h3>Further explanation</h3>

Given

5.6 mg of a micro computer

Required

The amount of chip

Solution

A mole is a number of particles(atoms, molecules, ions)  in a substance

1 mole = 6.02.10²³ particles  

Can be formulated :

N = n x No

N = number of particles

n = mol

No = 6.02.10²³ = Avogadro's number

mass = 5.68 mg = 5.68 x 10⁻³ g

mol :

= mass : MW

= 5.68 x 10⁻³ g : 28 g/mol

= 2.03 x 10⁻⁴

The number of atoms :

= 2.03 x 10⁻⁴ x 6.02.10²³

= 1.22 x 10²⁰

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