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Questions and Answers
What is the total volume of the solution when 20 mL of ethanol is mixed with 160 mL of water?
What is the total volume of the solution when 20 mL of ethanol is mixed with 160 mL of water?
- 140 mL
- 180 mL
- 200 mL (correct)
- 160 mL
How much ethanol is present in the solution by volume?
How much ethanol is present in the solution by volume?
- 160 mL
- 4 mL
- 180 mL
- 20 mL (correct)
What is the formula to calculate volume percentage of ethanol in the solution?
What is the formula to calculate volume percentage of ethanol in the solution?
- Volume of ethanol / Total volume × 100 (correct)
- Total volume × Volume of ethanol
- Total volume / Volume of ethanol × 100
- Volume of water / Volume of ethanol × 100
What is the volume percentage of ethanol in the mixed solution?
What is the volume percentage of ethanol in the mixed solution?
If the volume of ethanol was increased to 40 mL with the same amount of water, what would the new volume percentage of ethanol be?
If the volume of ethanol was increased to 40 mL with the same amount of water, what would the new volume percentage of ethanol be?
Flashcards
Volume of ethanol
Volume of ethanol
The amount of ethanol (in milliliters) used in the solution.
Volume of water
Volume of water
The amount of water (in milliliters) used in the solution.
Total volume
Total volume
The sum of the ethanol and water volumes.
Volume percentage of ethanol
Volume percentage of ethanol
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Calculating percentage
Calculating percentage
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Study Notes
Example Calculation
- Add 4 mL of ethanol to 160 mL of water.
- Calculate the volume percent of ethanol.
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