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Problem #1: What is the percent by volume of a solution formed by mixing 25ml of isopropanol with 45ml water?Problem#2: A photographic " stop bath" contains 160ml of pure acetic acid in the stop bath? |
Answer» PROBLEM#1:% V / V (percentage of volume per volume) =?V1 (solute volume) = 25 mLV (volume of the solution) = solute + solvent = 25 mL + 45 mL = 70 mLWe apply the data to the formula of volume percentage of the solute per volume of solution, we will have:PROBLEM#2:DIRECTIONS:THE ANSWER IS 2 PERCENTSOLUTION:He gave me a 160ML as developer, Acetic acid as stop bath and hypo (In ... This needs to be diltued to give a 2 percent solution. As Chris SAYS , you have to find out the concentration of the acetic acid. |
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