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Question

What volume of 4 M H2SO4 is needed to produce 1 L of 1 M H2SO4?

A
350 mL
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B
400 mL
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C
300 mL
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D
250 mL
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Solution

The correct option is B 250 mL
In the two given samples, no. of moles of H2SO4 is constant.
So, (Molarity)1×(Volume)1=(Molarity)2×(Volume)2
(4)×(Volume)1=1×1
(Volume)1=14=0.25L=250 mL
So, 250 mL of 4M H2SO4 is needed.


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