A 250 mL bottle of alcohol contains 25 mL of ethyl alcohol. What is the percentage concentration by volume(v/v) of ethyl alcohol in the solution?
Given:
Required:
Solution:
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A 250 mL bottle of alcohol contains 25 mL of ethyl alcohol. What is the percentage concentration by volume(v/v) of ethyl alcohol in the solution?
Given:
Required:
Solution:
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Answer:
Given:
Volume of solute: 25mL
Volume of solution: 250 mL
Asked/required:
% volume: ?
Solution:
Volume of solute
---------------------------- × 100%
Volume of solution
% volume: 25 mL
----------- × 100%
250 mL
% volume: 0.1 × 100%
% volume: 10%
Explanation:
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