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The molarity of pure water is...

The molarity of pure water is

A

18

B

50

C

55.6

D

100

Text Solution

Verified by Experts

The correct Answer is:
C

Mass of 1 L or 1000 ml water = 1000 mL `xx` 1 g m`L^(-1)` (Density of water at `4^(@)`C) = 1000 g
Number of moles of water in its 1L `=(1000g)/(18gmol^(-1))=55.55mol`
Hence, molarity of pure water is 55.6.
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Knowledge Check

  • The molality of pure water is

    A
    55.5
    B
    50.5
    C
    18
    D
    60.5
  • The molarity of pure water at 4^(@)C is

    A
    `1M`
    B
    `2.5M`
    C
    `5M`
    D
    `55.5M`
  • The temperature at which molarity of pure water is equal to its molality is :

    A
    `273K`
    B
    `298K`
    C
    `277K`
    D
    None
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