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What volume of 0.5M H2SO4 will exactly neutralize 20cm3 o...

What volume of 0.5M H2SO4 will exactly neutralize 20cm3 of 0.1M NaOH Solution?

A.

2.0cm 3

B.

5.0cm 3

C.

6.8cm 3

D.

8.3cm 3

Correct answer is A

The balanced equation is given as:

H2SO4+2NaOHNa2SO4+2H2O

Molarity of NaOH=0.1M

Volume of NaOH=20cm3

Molarity of H2SO4=0.5M

mol NaOH = 0.1×20cm3=2molNaOH

2molNaOH×1molH2SO42molNaOH=1molH2SO4

volumeofH2SO4=moleofH2SO4molarityofH2SO4

= 1mole0.5M=2cm3H2SO4