The number of mole present in 2 litre of 0.5 M NaOH is :

  • Option 1)

    2

  • Option 2)

    1

  • Option 3)

    0.1

  • Option 4)

    0.5

 

Answers (2)

As discussed in

Molarity -

 Molarity (M) = (Number of moles of solute)/(volume of solution in litres)

 

- wherein

It is defined as the number of moles of the solute in 1 litre of the solution.

 

  Molarity=\frac{n}{v}

=> n=0.5M\times 2l

=> 1.0

 


Option 1)

2

Option is incorrect

Option 2)

1

Option is correct

Option 3)

0.1

Option is incorrect

Option 4)

0.5

Option is incorrect

That means 1litre solution we have 0.5 mole of naoh                                                                    so for 2litre solution we get                       

2×0.5=1mole of naoh

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