CHEM 102 LAB EXAM QUESTIONS WITH COMPLETE SOLUTIONS

pH of strong acid - ANSWER-1, 2, or 3 pH of weak acid - ANSWER-4,5,6 What will always be higher than 7 on the pH scale - ANSWER-A weak acid and strong base Strong acids has... - ANSWER-weak conjugate base Weak Acid has... - ANSWER-strong conjugate base What is pKa - ANSWER-Halfway to the stoichiometric point. What is stoichiometric point? - ANSWER-acid=base What is Ka? - ANSWER-concentration of the product over the reactant What does is inflection point? - ANSWER-Tell us the change in direction of the graph. What does the kPa on a graph represent? - ANSWER-It is the halfway to the equivalence point What does the inflection point represent? - ANSWER-It represents the stoichiometric point. Where is the endpoint/stomiertric point and equivalence point located on the graph? - ANSWER- Disposal Process for Potassium Alum - ANSWER-Liquid-sink Cotton-trash Alum-solid waste Disposal Process for percent water in hydrated salt - ANSWER-Solid waste-solid waste container Disposal process for molar volume of carbon dioxide - ANSWER-All solutions- sink Disposal process for volumetric - ANSWER-All neutral solutions-sink NaOH and acid- barrel Disposal process for potentiometric titration - ANSWER-All neutral solutions-sink