1. How many milliliters of CHCl3 are neededto prepare a 2.5% v/v solution in 500 mL of methanol? 2. I a 250-mL solution of ethanol in water is prepared with 4mL of absolute ethanol, what will be the concentration of ethanol in % v/v?
1. How many milliliters of CHCl3 are neededto prepare a 2.5% v/v solution in 500 mL of methanol? 2. I a 250-mL solution of ethanol in water is prepared with 4mL of absolute ethanol, what will be the concentration of ethanol in % v/v?
Chapter7: Solutions And Colloids
Section: Chapter Questions
Problem 7.42E
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1. How many milliliters of CHCl3 are neededto prepare a 2.5% v/v solution in 500 mL of methanol?
2. I a 250-mL solution of ethanol in water is prepared with 4mL of absolute ethanol, what will be the concentration of ethanol in % v/v?
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