pH Scale & Indicator Color Simulator

Interactive pH scale with 10 common acid-base indicators displayed as color-changing test tubes. Slide pH from 0-14 to see real-time color transitions for methyl violet, thymol blue, methyl orange, bromocresol green, methyl red, litmus, bromothymol blue, phenol red, phenolphthalein, and alizarin yellow R. Calculates [H⁺], [OH⁻], and pOH.

PH AND INDICATORS

Indicators are weak acids that change color depending on the pH of the solution.

CORE FORMULAS

pH Definition

AP EXAM CONNECTION

Unit: Unit 8: Acids and Bases
Learning Objective: SAP-10.A

COMMON MISCONCEPTIONS

Using an indicator that doesn't match the titration endpoint.

KEY TAKEAWAYS

pH indicators signal the end of a titration.

DEEP DIVE: RELATED CONCEPTS

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