Question

the number of moles of neutrons found in 2 gms of oxygen atoms will be:
(I need the steps, answer is 1)​

Answer 1

Answer:

Explanation:

2g oxygen atoms means

=2/16=1/8moles

1 mole oxygen contain 8 neutrons (16-8 Mass no- atomic no)

Then 1/8 moles contain

1/8/8=1 neutron

Answer 2

Concept:

• Mole concept
• The nucleus of an atom
• Determining the number of neutrons

Given:

• 2 g of oxygen
• the molar mass of oxygen = 16g
• One oxygen atom contains 8 protons and 8 neutrons

Find:

• The number of moles of neutrons in 2 g of oxygen atoms

Solution:

We know that each oxygen atom contains 8 protons and 8 neutrons.

This means that one mole of oxygen atom contains 8 moles of protons and 8 moles of electrons

We need to find the number of moles of oxygen atoms.

n = weight/molar mass of element

n = 2/16 = 1/8

There is 1/8 mole of oxygen atoms

The number of moles of neutrons is 8 times the number of moles of oxygen atoms.

The number of moles of neutrons is 8n = 8 (1/8) = 1

The number of moles of neutrons is 1.

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