equilibrium

Co-Authored by Dean J. Campbell* and Ali Patel* *Bradley University, Peoria, Illinois

An experiment that has always fascinated me is observing what happens when CO₂ is bubbled into limewater (which is a saturated solution of calcium hydroxide).^1-2 This experiment can be carried out by blowing bubbles of exhaled breath (which contains roughly 4% CO₂)³ through a straw into limewater.

Dean J. Campbell* *Bradley University, Peoria, Illinois

Can Alkaline Water Change Body pH?

We typically teach students to solve qualitative chemical equilibrium problems using an ICE table, where I, C, and E represent [Initial], [Change], and [Equilibrium] concentrations of each reactant and product in units of mol∙L^–1. At the risk of insulting you, I’ll provide an example, liberated from our class textbook:¹

Q, K, ∆G and ∆G°.

The Wisconsin initiative for Science Literacy led by Bassam Shakhashiri has published Science Climate Concepts Fit Your Classroom - A Workbook for Teachers authored by Dr. Jerry Bell.

Co-authors: Rachel Barnard*, Samantha Cass, and Ryan Sweeder (*: corresponding author) Lyman Briggs College, Michigan State University

After teaching the concepts and calculations for acid and base strength, concentration, percent ionization, and pH I noticed many of my students were struggling to make meaningful connections between these calculations.

A popular method for demonstrating the effect of temperature on chemical equilibrium involves the use of Co²⁺ complexes.