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Acid-base titrations and double titration (NaOH, Na2CO3, NaHCO3)
NEET level
Single correct option
Difficulty 1 of 3
eq116
How many mL of 0.200 M NaOH are required to neutralise exactly 20.0 mL of 0.100 M HCl?
A
20.0
mL
B
10.0
mL
C
5.0
mL
D
40.0
mL
Answer: B
At neutralisation, milli-equivalents of acid = milli-equivalents of base. HCl:
0.100
×
20.0
=
2.00
meq; NaOH:
0.200
×
V
=
2.00
, so
V
=
10.0
mL.
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