What will be the final concentration when equal volumes of 10% (v/v) and 20% (v/v) ethanol solutions are mixed?
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Answer:
30% (v/v)
Step-by-step explanation:
10=x/v × 100
x= 10v/100
20=y/v × 100
y=20v/100
final concentration = 10v/100 + 20v/100 / v × 100
= 30v/100 /v × 100
=30
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