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Question

Calculate the volume of concentrated sulphuric acid (molarity = 18 M) required to prepare 250 mL of 2 M acid solution.
 
 


A
27.8 mL
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B
15.4 mL
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C
20.5 mL
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D
23.6 mL
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Solution

The correct option is A 27.8 mL
As per the concept of dilution,
M1V1=M2V2(18×V1)=(2×250)V1=27.8 mL 
Volume of concentrated H2SO4required= 27.8 mL

Chemistry

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