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Standard XII

Chemistry

Mole Concept

Given that th...

Question

Given that the abundances of isotopes, $^{14} N$ and $^{15} N$ are 99.63% and 0.37% respectively, the average atomic mass of $N$ is:

14.0037 u

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14.37 u

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14.05 u

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14.0025 u

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Solution

The correct option is A 14.0037 u
The average atomic mass of $N$ will be
$= (14 \times 0.9963 + 15 \times 0.0037)$ u
= 14.0037 u

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Similar questions

Q. Given that the abundances of isotopes,

^{14} N

and

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Q. Natural nitrogen is 99.63%

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Mole Concept

Standard XII Chemistry

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Given that the abundances of isotopes, 14N and 15N are 99.63% and 0.37% respectively, the average atomic mass of N is:

The correct option is A 14.0037 uThe average atomic mass of N will be =(14×0.9963+15×0.0037) u = 14.0037 u

Given that the abundances of isotopes, $^{14} N$ and $^{15} N$ are 99.63% and 0.37% respectively, the average atomic mass of $N$ is:

The correct option is A 14.0037 u
The average atomic mass of $N$ will be
$= (14 \times 0.9963 + 15 \times 0.0037)$ u
= 14.0037 u