MEDIUMMCQ SINGLEJEE Mains ChemistryPhysical ChemistryIonic equilibriumSelf-ionization of Water

The concentration of water molecules in pure water at 298 K is

A.10–7 M

B.55.5 M✓ Correct

C.5.55 M

D.7.26 M

Explanation

To calculate the concentration of water in terms of molarity- Molarity= moles of solute in 1 litre of the solution. Volume=1litre. Mass= 1Kg=1000 grams Number of moles = 1000/18. Molarity=1000/18/1 55.55 M

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