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If 100mL of 1M HCl is added to 150mL of ...

If 100mL of 1M HCl is added to 150mL of 1M NaOH, What is the final nature and concentration of resultant solution.

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Number of millimoles of acid `=100xx1=100`
Number of millimoles of base `=150xx1=150`
Base is in excess. Hence resultant solution is basic and concentration`=(150-100)/(250)=(50)/(250)=0.2M`
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