Unlike litmus, universal indicator can show us how strongly acidic or alkaline a solution is, not just that the solution is acidic or alkaline. This is measured using the pH scale, which runs from ...

American Chemical Society: Chemistry for Life.Materials for the Demonstration 4 clear plastic cups Graduated cylinder Universal indicator Water Sodium carbonate Citric acid Flat toothpicks 2 droppers ...

IntroductionAn acid-base indicator is a substance that changes color as the pH of the solution changes. Indicators work because they are weak acids which when in solution, exist in equilibrium with ...

On-Site For each group: Set out 1 set of labeled cups, 1 unlabeled cup, universal indicator, 1 long-handled spoon or other stirring equipment, 1 measuring spoon or cup. If distributing the pH color ...

Goggles and gloves Chemicals 0.1 M HCl 0.1 M NaOH Universal indicator Prior to Lecture (prep time ~ 5 min.) Assemble the ring stand and buret clamp. Secure the two burets in the clamp. Set up white ...