Homework Answers
According to Dilution formula:
C1V1 = C2V2
C1 = 95%, V1 = ? C2 = 70%, V2 = 425 mL
95*V1 = 70*425
V1 = 70*425/95
= 313 mL
Volume of 95% EtOH needed = 313 mL
Volume of water needed = V final - V initial
= 425 - 313
= 112 mL
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