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?
2.0cm 3
5.0cm 3
6.8cm 3
8.3cm 3
Correct answer is A
The balanced equation is given as:
H2SO4+2NaOH→Na2SO4+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