15. a container of rubbing alcohol comtains 200 ml of isopropyl alcohol and 600 ml of water. find the percentage by volume of alcohol in the solution.
16. a 350 ml bottle pf vinegar comtains 17.5ml of acetic acid. calculate the percentage by volume of acid
17. a 15k gold contains 15 grams of gold and 9 grams of cooper. find the % m/m gold concentration.
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Answer:
Mass by volume percentage:
It is the mass of solute dissolved in 100 mL of the solution.
Explanation:
28.57%
Mass of solute=40gm
Volume of solvent=140ml
Mass by Volume percentage=
(Mass of solute/Volume of solvent)×100
=(40/140)×100