Sketch the titration curves of the following mixtures. Indicate the initial pH and the pH corresponding to the equivalence point. Indicate the volume of titrant required to reach the equivalence point, and select a suitable indicator from Figure 17-7.

(a) 25.0 mL of 0.100 M KOH with 0.200 M HI; 

(b) 10.0 mL of 1.00 M NH₃ with 0.250 M HCl.

Figure 17-7

Transcribed Image Text:

Indicator Alizarin yellow-R Thymolphthalein Phenolphthalein Thymol blue (base range) Phenol red pH- Bromthymol blue Chlorphenol red Methyl red Bromcresol green Methyl orange Bromphenol blue Thymol blue (acid range) Methyl violet 1 0 Yellow Red (b) 2 8 3 Violet Yellow Red Yellow Yellow 4 Red Git 5 (a) 10 Yellow 6 Yellow Yellow Blue 7 Yellow-orange Blue-violet Yellow Colorless Yellow 1 8 Red Blue 0 Red I 9 Colorless 10 Yellow Red Blue 11 Blue 12 Violet