Calculate the molarity of pure water`(d = 1 g//L)`

Options

A. 555 M
B. 5.55 M
C. 55.5 M
D. None

Answer

C

Explanation

Consider 1000 mL of water
Mass of 1000 mL of water
= 1000 × 1 = 1000 gram
`"Number of moles of water"=1000/18=55.5`
`"Molarity"=("No. of moles in water")/("Volume in litre")=55.1/1`
= 55.5 M