2 Calculate the pH of each of the following solutions and la

2 Calculate the pH of each of the following solutions, and label each as acidic, basic, or neutral Solution [H,0.1-1.0 × 1o-M [h4,0+]-0.001 M [H,0,]-3.7 × 10-6 M pH Acidic/Basic/Neutral A student measured the mass of one dose of a store brand antacid tablet to be 0.750 g. The studer the tablets and used 0.126 g to neutralize a solution of acid. What percentage of the antacid tablet to neutralize the acid solution? Show your work. Circle all of the pairs of compounds below that represent a conjugate acid-base paiz a H,S/HS c Ca(OH)2/CaSO 5 Red cabbage is not the only natural source of pigments that can be used as pH indicators. The flowers of hydrangea plants come in many different colors. Many people believe that the different color plants are separate species, but this is not true. In fact, some gardeners plant one color shrub and discover that it changes color over time. Suggest a reason this might be the case

Solution

Ans 2 :

pH = -log[H3O+]

pH = -log(1.0 x 10^-9)

pH = 9 ; basic

pH = -log[H3O+]

pH = -log(0.001)

pH = 3 ; acidic

pH = -log[H3O+]

pH = -log(3.7 x 10^-6)

pH = 5.43 ; acidic