MCQ
An analyst wants to convert. $1 L\,HCl$ of $pH =1$ to a solution of $HCl$ of $pH 2$. The volume of water needed to do this dilution is $......\,mL$. (Nearest Integer)
- A$8000$
- ✓$9000$
- C$7000$
- D$6000$
✓
Answer
Correct option: B.
$9000$
b
$\left(M_1 \times V_1\right)=\left(M_2 \times V_2\right)$
$\left(M_1 \times V_1\right)=\left(M_2 \times V_2\right)$
$V _2=10\,L$
$\text { Water added }=10-1$
$=9 \text { Litre }$
$=9000\,mL$
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