Question

calculate the number of molecule present in 0.5 mole of water?​

Answer 1

Answer:

Hey mate ! Check ur answer below.

Explanation:

• W.K.T. 1 mole of molecules = 6.022×10^23 molecules
• Using dimensional analysis to calculate the number of molecules of H₂O in 0.5 mol H₂O.
• (0.5 mol H₂O) × (6.022×10^23 molecules/mol) = 3×10^23 molecules H₂O to one significant figure
• There are 3×10^23 molecules of H₂O in 0.5 mole.

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Answer 2

From Avogadro's law, 1 mole of any compound contains 6.022×10

23

molecules

∴ 1 mole of H

2

contains 6.022×10

23

molecules of H

2

∴ 0.5 mole of H

2

contains =0.5×6.022×10

23

=3.011×10

23

molecules