REPORT SHEET LAB Acids, Bases, pH, and Buffers 19 A. Reference Colors for pH Using Red Cabbage Indicator PH Colors of Acidic Solutions pH 1 Red 2 Red Pink Light Lavendar blue Violet 6 Violet B. Measuring pH Substance Household cleaners vinegar ammonia Drinks, juices lemon juice Xapple juice 3 4 56 pH Detergents, shampoos shampoo detergent Xhair conditioner Health aids mouthwash antacid aspirin 7 1. Color with Indicator Pink | Bright green Binx-Purple Violet Aqua Viole+ Pink-Green Pink 8 9 Colors of Basic Solutions Aqua Blue Green Green Bright Green Yellow Green Yellow Green 10 11 12 13 Color of Neutral Solution blue Violet 2. pH Using Indicator 2 A 3. pH Using pH Meter 4. Acidic, Basic, or Neutral? Acidic Questions and Problems Q1 Complete the following table: [H0*] [OH] 2.0106 5.0 %109 ? 3.5x10-3 ? 2.06 X10 ? 1.6X100 160.25 X10-5 -12 PH 5.7 9.8 11.54 9.6 Acidic, Basic, or Neutral? acidic Basie Neutral C.1 Effect of adding acid Solution 1. Initial PH HO 0.1 M NaCl High pH buffer Low pH 4.0 buffer C.2 Effect of adding base Solution 1. Initial PH HO 6.8 0.1 M NaCl 6.2 High pH buffer 10.0 Low pH buffer 8. 6.2 10.6 4,0 2. pH after 5 drops of HCI 1.4 1.3 9.6 3.8 2. pH after 5 drops of NaOH 12.7 12.6 10.2 4.2 3. pH after 10 drops of HCI 1.2. 1.1 9.4 3.7 3. pH after 10 drops of NaOH 13.0 12.8 10.2 4.4 4. pH change 4. pH change 5. Buffer yes or no? 5. Buffer yes or no?