Question
Question: When 10 mL of ethyl alcohol (density = 0.7893 g/mL) is mixed with 20 mL of water (density 0.9971 g/m...
When 10 mL of ethyl alcohol (density = 0.7893 g/mL) is mixed with 20 mL of water (density 0.9971 g/mL) at 25 C, the final solution has a density of 0.9571 g/mL. The percentage change in total volume on mixing is:
A. 3.1 %
B. 2.4 %
C. 1 %
D. None of these.
Explanation
Solution
Mass of a chemical is nothing but the product of density and volume of the chemical.
- We can calculate the percentage of change in total volume on mixing by using the following formula.