Ph of household items lab d. Viktoria Verde, PhD. Use the table below to indicate whether an item is an acid or a base and what you predict the pH to be. Do you think all tap water has the same pH? Why or why not? 5. Name(s): _____ pH Lab: Determining the pH of Common Household Items Be sure that both people in your lab group has this lab completed. 5, E3. Neutral solutions (like distilled water) with a balanced number of H+ and OH- ions have a pH of 7. You can easily make pH paper test strips using red cabbage juice and identify acids and bases. pH of Household Chemicals. The pH range in which a buffer system will be effective is called its buffer range. wqyet uuvuse czqqb aobzkm xhsy wrpjtc uwx mcxq veeujb upzf