To what volume must 300cm 3 of 0 60M sodium hyd... - JAMB Chemistry 2018 Question
To what volume must 300cm\(^3\) of 0.60M sodium hydroxide solution be diluted to give a 0.40M solution?
A
450cm\(^3\)
B
300cm\(^3\)
C
200cm\(^3\)
D
150cm\(^3\)
correct option: a
From the dilution law:
C\(_1\)V\(_1\) = C\(_2\)V\(_2\)
C\(_1\) = Initial conc. of NaOH = 0.6M
V\(_1\) = Initial Volume of NaOH = 300cm3
C\(_2\) = Final conc. of NaOH = 0.4M
V\(_2\) = Final Volume of NaOH = ?
V\(_2\) = \(\frac{C_1V_1}{C_2}\)
V\(_2\) = \(\frac{0.6 \times 300}{0.4}\)
V\(_2\) = 450 cm\(^3\)
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