Multiple ChoiceOn the pH scale, pH is defined as pH=−log10([H+]1). What concentration does pH measure?1views
Multiple ChoiceOn the pH scale, a change of 1 pH unit corresponds to a tenfold change in 10−pH. How many times more acidic (in terms of H+ concentration) is a solution with pH 6 than a solution with pH 9?1views
Multiple ChoiceTypical human stomach acid has a pH around 1–2. Approximately what is the hydronium ion concentration, [H3O+], for a pH of 1.5?1views
Multiple ChoiceOn-the-scalp hair lighteners are formulated to be alkaline to open the hair cuticle and promote oxidation. Which pH range best describes most on-the-scalp lighteners?1views