Question

find out the mass of electron in kg which are present in 8 gm of oxygen gas.​

Answer 1

Explanation:

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11th

Chemistry

Some Basic Concepts of Chemistry

Mole Concept and Molar Masses

Number of oxygen atoms in 8...

CHEMISTRY

Number of oxygen atoms in 8 g of ozone is :

MEDIUM

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ANSWER

The number of moles is the ratio of mass to molar mass.

Number of moles of ozone =

46

8

=

6

1

The number of molecules is the product of the number of moles and the Avogadro's number N

A

which is 6.023×10

23

.

Number of molecule of O

3

=

6

1

×N

A

1 molecule of ozone contains 3 O atoms.

Hence, the number of O atoms is thrice the number of ozone molecules.

Number of atom of oxygen = 3×

6

1

×N

A

=

2

1

N

A

=

2

6.02×10

23

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