A chemist has a solution containing 250 milliliters of 5% salt concentration. She wants to increase the concentration to 15% by adding a 25% salt solution. How many milliliters of the 25% solution should she add?

Fri, 01 May 2026 19:30:41 +0000

**Why More People Are Exploring Salt Concentration Precision**
In today’s hands-on DIY and wellness culture across the U.S., even small chemistry details matter—especially when working with solutions where precision impacts outcomes. From homemade beauty products to municipal water systems and food preparation, understanding how to safely adjust concentration levels is increasingly relevant. A chemist has a 250-milliliter solution with a 5% salt concentration and wants to raise it to 15% by adding a 25% salt solution. This practical question is gaining traction among hobbyists, small-scale producers, and professionals alike—driven by a desire for control, consistency, and safety. As people explore more DIY formulations, mastering solutions math ensures results are both effective and safe. **How A Chemist Has a Solution Containing 250 Milliliters of 5% Salt Concentration Gains Traction**
This type of concentration doubling challenge reflects a growing interest in precision in everyday science. Whether adjusting homemade saline cleaners, enhancing flavor profiles in low-sodium recipes, or optimizing solutions for classroom or community experiments, accurate dilution and strength calculations are essential. The scenario of starting with 250 mL at 5% and increasing to 15% demands careful math—commonly seen in cooking, lab prep, and commercial product development. With rising awareness around ingredient transparency and solution safety, knowledge of such conversions empowers users to make informed choices without guesswork. **Calculating the Right Amount of 25% Salt Solution to Add**
Let’s solve the problem clearly. The chemist starts with 250 mL of a 5% salt solution—this means she has: - Salt mass = 5% of 250 mL = 0.05 × 250 = 12.5 grams