Question

how many electrons are present in 16 gram of ammonia

Answer 1

Find moles and multiply e amd avgadro no

Answer 2

The number of electrons in given amount of ammonia are $5.66\times 10^{24}$

Explanation:

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

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

Given mass of ammonia = 16 g

Molar mass of ammonia = 17 g/mol

Putting values in above equation, we get:

$\text{Moles of ammonia}=\frac{16g}{17g/mol}=0.941mol$

The chemical formula of ammonia is $NH_3$

Number of electrons in nitrogen atom = 7

Number of electrons in hydrogen atom = 1

Total number of electrons = [7 + 3(1)] = 10

According to mole concept:

1 mole of a compound contains $6.022\times 10^{23}$ number of particles

So, 0.941 moles of ammonia will contain = $(0.941\times 10\times 6.022\times 10^{23})=5.66\times 10^{24}$ number of electrons

Learn more about mole concept:

https://brainly.com/question/14465080

https://brainly.com/question/919137

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