Chemistry, 07.02.2022 14:00, katiemh8302
2) Phenolphthalein (C20H1404) is a dye very commonly used as indicator in acid-base titrations. The simplified
generic expression for the dissociation of this molecule in water is shown in the equation below, where Hin
represents the phenolphthalein molecule and In is the phenolphthalein ion. Their appearance and relevant
properties are also shown below.
HIn (S) + H20 (1) = H30* (aq) + In" (aq)
a. Can this equilibrium be controlled by changing the pH of the solution? Briefly explain.
b. What color do you expect to see in the solution when you add acid to it? Briefly explain.
Answers: 2
Chemistry, 22.06.2019 12:30, azzyla2003
Write the chemical formula for a compound that is made of an element from group 1 and an element from group 17
Answers: 1
Chemistry, 22.06.2019 13:30, bryce99
In a ni-cd battery, a fully charged cell is composed of nickelic hydroxide. nickel is an element that has multiple oxidation states. assume the following proportions of the states: nickel charge proportions found 0 0.17 +2 0.3 +3 0.33 +4 0.5 (a) determine the mean of the nickel charge. enter the answer to 2 decimal places.(b) determine the cumulative distribution function of nickel charge.
Answers: 2
2) Phenolphthalein (C20H1404) is a dye very commonly used as indicator in acid-base titrations. The...
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