HARDMCQ SINGLEJEE Mains ChemistryPhysical ChemistryMole _ Equivalent ConceptAchiever Section

The total number of electrons present in 18 ml of water (density of water is 1 g ml–1) is

A.6.02 × 1023

B.6.02 × 1023

C.6.02 × 1024✓ Correct

D.6.02 × 1025

Explanation

1 mole of water = 18grams = 22 6 23 10 .0 x molecules. Density= 1g/ml Therefore, 1 mole of water = 18 ml. Number of electrons in one molecule =6+2+2=10. Number of electrons in 18 ml = 23 10 6.023 10 x x = 24 6.023 10 x .

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