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pH Scale

pH Scale Screenshot Download Embed
  • pH
  • Dilution
  • Concentration
Java Logo Original Sim and Translations

About

Topics

  • pH
  • Dilution
  • Concentration
  • Acids
  • Bases

Description

Test the pH of things like coffee, spit, and soap to determine whether each is acidic, basic, or neutral. Visualize the relative number of hydroxide ions and hydronium ions in solution. Switch between logarithmic and linear scales. Investigate whether changing the volume or diluting with water affects the pH. Or you can design your own liquid!

Sample Learning Goals

  • Determine if a liquid is acidic, basic, or neutral
  • Place acids or bases in relative order
  • Describe on a molecular scale, with illustrations, how the water equilibrium varies with pH
  • Determine concentration of hydroxide, hydronium and water at a given pH
  • Relate liquid color to pH
  • Predict (qualitatively and quantitatively) how dilution and volume will affect the pH and concentration of hydroxide, hydronium and water
Version 1.2.10

For Teachers

Teacher Tips

Download teacher tips PDF Overview of sim controls, model simplifications, and insights into student thinking ( PDF ).

Video Primer

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Teacher-Submitted Activities

Title Gold Star Contribution Contribution by PhET Authors Level Type
pH Scale inquiry-based intro to acid-base A gold star indicates high-quality, inquiry-based activities that follow the PhET design guidelines. This contribution was designed by PhET. Trish Loeblein MS
HS
UG-Intro		 CQs
Lab
How do PhET simulations fit in my middle school program? This contribution was designed by PhET. Sarah Borenstein MS Other
Alignment of PhET sims with NGSS This contribution was designed by PhET. Trish Loeblein HS Other
PhET Sims Aligned to the Chemistry Curriculum This contribution was designed by PhET. Julia Chamberlain UG-Intro
HS		 Other
pH Learning Goals by developement team (Inquiry Based) This contribution was designed by PhET. Trish Loeblein, Laurie Langdon Other Other
MS and HS TEK to Sim Alignment Elyse Zimmer HS
MS		 Other
On the molecular level, what is the difference between acids and bases? Chris Justus HS Guided
What effect does dilution of an acid or base have on the pH of the solution? Chris Justus HS Guided
Student Guide for PhET - pH Scale in html5 Brian Libby MS
HS		 HW
Guided
pH Scale Guided Inquiry Activity Tony Tracy HS
UG-Intro		 Guided
Lab
HW
Exploring the pH Scale Lyric Portwood MS
HS		 Guided
Introduction to acids & bases Donna Brewster HS Guided
Preguntas de razonamiento para todas las simulaciones HTML5 Diana López MS
UG-Intro
K-5
HS
UG-Adv
Grad		 Discuss
HW

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Translations

Software Requirements

Windows 7+ Mac OS 10.7+ iPad and iPad Mini with iOS Chromebook with Chrome OS
Microsoft Edge and Internet Explorer 11, latest version of Firefox, latest version of Chrome.
Safari 9+, latest version of Firefox, latest version of Chrome.
Latest version of Safari
Latest version of Chrome

Credits

Design Team Third-party Libraries Thanks To
  • Yuen-ying Carpenter (lead)
  • Chris Malley (developer)
  • Emily B. Moore
  • Ariel Paul
  • Julia Chamberlain
  • Kathy Perkins
  • Patricia Loeblein
  • Sharon Siman-Tov (graphic arts)
  • almond-0.2.9.js
  • FileSaver-b8054a2.js
  • fontawesome-webfont-3.0.2.svg
  • jama-1.0.2
  • jquery-2.1.0.js
  • lodash-2.4.1.js
  • pegjs-0.7.0.js
  • text-2.0.12.js
  • Royal Society of Chemistry
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