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12.044 × 1025 Molecules of Oxygen Mass of 6.022 × 1023 Molecules of Oxygen = 32g - Science

Short Note

Calculate the mass of 12.044 × 1025 molecules of oxygen (O2).

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Solution

12.044 × 1025 molecules of oxygen

Mass of 6.022 × 1023 molecules of oxygen = 32g

Mass of one molecule of oxygen = 32 / 6.022 × 1023 = 5.3 × 1023g

Mass of 12.044 × 1025 molecules of oxygen = 5.3 

10−23 × 12.044 × 1025 g = 6400g or 6.4kg

Hence, the mass of 12.044 × 1025 molecules of oxygen is 6.4kg.

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APPEARS IN

Lakhmir Singh Class 9 Chemistry - Science Part 2
Chapter 3 Atoms and Molecules
Short Answers | Q 13 | Page 172
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