Question

The number of neutron in 1.8 gram of water will approximately be

Answer 1

this is the answer to your question

Answer 2

Answer: The number of neutrons in the given amount of water is $4.8176\times 10^{23}$ number of neutrons.

Explanation:

Number of neutrons in 1 mole of water molecule = Number of neutrons in two Hydrogen atoms + Number of neutrons in Oxygen atom

Number of neutrons in water = 0 + 8 = 8 × Avogadro's Number

To calculate the number of moles, we use the equation:

$\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}$

Mass of water given = 1.8 g

Molar mass of water = 18 g/mol

Putting values in above equation, we get:

$\text{Moles of water}=\frac{1.8g}{18g/mol}\\\\\text{moles of water}=0.1mol$

Now, 1 mole of water contains $8\times 6.022\times 10^{23}$ number of neutrons.

So, 0.1 mole of water will contain = $0.1\times 8\times 6.022\times 10^{23}=4.8176\times 10^{23}$ number of neutrons.

Hence, the number of neutrons in the given amount of water is $4.8176\times 10^{23}$ number of neutrons.