On mixing `15.0` ml of ethyl alcohol of density `0.792"g ml"^(-1)` with 15 ml of pure water at `4^(@)C`, the resulting solution is found to have a density of `0.924"g ml"^(-1)`. The percentage contraction in volume is :

Molality of pure ethyl alcohol (density 0.92 g ml) is :

When 10 mL of ehtyl alcohol (density = 0.7893 g mL^(-1)) is mixed with 20 mL of water (density 0.9971 g mL^(-1)) at 25^(@)C , the final solution has a density of 0.9571 g mL^(-1) . The percentage change in total volume on mixing is

When 10 mL of ehtyl alcohol (density = 0.7893 g mL^(-1)) is mixed with 20 mL of water (density 0.9971 g mL^(-1)) at 25^(@)C , the final solution has a density of 0.9571 g mL^(-1) . The percentage change in total volume on mixing is

Give reason when 30 mL of ethyl alcohol and 30 mL of water are mixed, the volume of resulting solution is more than 60 mL.

If 20 mL of ethanol (density =0.7893g//mL) is mixed with 40mL water (density = 0.9971g//mL) at 25^(@)C , the final slution has density of 0.9571g//mL . Calculate the percentage change in total volume of mixing. Also calculate the molarity of alcohol in the final solution.

If 20 mL of ethanol (density =0.7893g//mL) is mixed with 40mL water (density = 0.9971g//mL) at 25^(@)C , the final slution has density of 0.9571g//mL . Calculate the percentage change in total volume of mixing. Also calculate the molality of alcohol in the final solution.

If 20 mL of ethanol (density =0.7893g//mL) is mixed with 40mL water (density = 0.9971g//mL) at 25^(@)C , the final slution has density of 0.9571g//mL . Calculate the percentage change in total volume of mixing. Also calculate the molarity of alcohol in the final solution.

30 mL of methyl alcohol (density = 0.8 g/cc) is mixed with 70 mL of water (density = 1.0 g/cc) at 25^@C to give a solution of density 0.94 g/cc. Find the mole fraction, molarity and molality.