Thomas poured 25 mL of 0.60 M HCl into a large bottle. He then added enough water so that the new (diluted) concentration was 0.10 M HCl. How much water did Thomas add

The answer to your question is 150 ml

Explanation:

Data

Volume 1 = 25 ml

Concentration 1 = 0.6 M

Volume 2 = ?

Concentration 2 = 0.1 M

Formula

Volume 1 x Concentration 1 = Volume 2 x Concentration 2

Solve for Volume 2

Volume 2 = (Volume 1 x Concentration 1) / Concentration 2

Substitution

Volume 2 = (25 x 0.6) / 0.1

Simplification

Volume 2 = 15 / 0.1

Result

Volume 2 = 150 ml