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Solve! 4L of 0.02 Maqueous solution of Nacl was diluted by adding one litre of water. The molarity of the resultant solution is

4L of 0.02 M aqueous solution of Nacl was diluted by adding one litre of water. The molarity of the resultant  solution  is  

  • Option 1)

    0.004

  • Option 2)

    0.008

  • Option 3)

    0.012

  • Option 4)

    0.016

 
Answers (1)
348 Views
V Vakul

As learnt in

Molarity -

Molarity = \frac{Moles \: of \: solute}{V\! ol.of\: solution(L)}

-

 

 Number of moles of NaCl = 4 x 0.02 = 0.08

Total final volume = 5 L

M = 0.08 / 5 = 0.016 M


Option 1)

0.004

This option is incorrect

Option 2)

0.008

This option is incorrect

Option 3)

0.012

This option is incorrect

Option 4)

0.016

This option is correct

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