If one mole of nitrogen molecules weighs 28 g, calculate the mass of one molecule of nitrogen in grams.

Academic Chemistry NCERT Class 9

Mass of one mole of nitrogen = 28g

Now, 1 mole of nitrogen contains 6.022 × 10²³ molecules.

Mass of 6.022 × 10²³ nitrogen molecules = 28g

Mass of one molecule of nitrogen = 28 / (6.022 × 10²³) g

= 4.64 × 10^-23grams.

Therefore, one molecule of nitrogen weighs 4.64 × 10^-23 grams.

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Updated on: 10-Oct-2022

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