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How to solve this problem- The molarity of a solution obtained by mixing 750 mL of 0.5(M)HCl with 250 mL of 2(M)HCl will be :

The molarity of a solution obtained by mixing 750 mL of 0.5(M)HCl with 250 mL of 2(M)HCl will be :

  • Option 1)

    0.975 M

  • Option 2)

    0.875 M

  • Option 3)

    1.00 M

  • Option 4)

    1.75 M

 
Answers (2)
112 Views
N neha

As we learnt ,

 

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.

 

 M1V1 + M2V2 = MV

M = \frac{M_{1}V_{1} + M_{2}V_{2}}{V} = \frac{0.9 \times 750 + 2 \times 250}{1000}

M = 0.875

 

 

 


Option 1)

0.975 M

Option 2)

0.875 M

Option 3)

1.00 M

Option 4)

1.75 M

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