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Class 11
Chemistry
States of Matter
calculate the total number of electrons present in...

Question:
Calculate the total number of electrons present in 1.4 g of dinitrogen gas.

Answer:

Mass of the nitrogen = 1.4 g

Molar mass of nitrogen = 28 g mol^–1

Therefore amount of nitrogen = 1.4 / 28 = 0.05 mol

Number of nitrogen molecule in 0.05 mol

= 6.023 x 10²³ x 0.05

= 3.0115 x 10²²

Also number of electrons in one molecule of nitrogen = 14

Therefore, total number of electrons in 1.4 g of nitrogen

= 3.0115 x 10²² x 14

= 4.22 x 10²³

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Question:
Calculate the total number of electrons present in 1.4 g of dinitrogen gas.

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Question:
Calculate the total number of electrons present in 1.4 g of dinitrogen gas.