Question

the number of neutrons present in 26 g...​

Answer 1

here molar mass of carbon is 13 g

no of moles of carbon atom present is 2 moles

one carbon atom contain 7 neutron (in the given q) so no of neutrons is = 7×2×6.022×10^23

=8.43×10^24

Answer 2

The number of neutrons present in given amount of carbon are $8.43\times 10^{24}$

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 carbon = 26 g

Molar mass of carbon = 12 g/mol

Putting values in above equation, we get:

$\text{Moles of carbon}=\frac{26g}{12g/mol}=2.17mol$

For the given isotope:  $_6^{13}\textrm{C}$

Mass number = 13

Atomic number = 6

Number of neutrons = Mass number - Atomic number = 13 - 6 = 7

According to mole concept:

1 mole of an element contains $6.022\times 10^{23}$ number of particles

So, 2.17 moles of carbon will contain = $(2.17\times 7\times 6.022\times 10^{23})=8.43\times 10^{24}$ number of neutrons

Learn more about mole concept:

https://brainly.in/question/6813757

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