Answer:
125 mL will be the volume to be diluted
Explanation:
Dilution formula to be applied in this case:
Concentrated M . Concentrated volume = Diluted volume . Diluted M
Let's replace data:
Concentrated M = 15 M
Concentrated volume: 25 mL
Diluted volume = ?
Diluted M = 3M
Lets replace: 15 M . 25 mL = Diluted volume . 3M
Diluted volume = (15 M . 25 mL) / 3 M → 125 mL
