subject
Chemistry, 18.02.2020 17:37 samwamooo

Part III. Ammonia is a weak base and establishes the following equilibrium in water:
NH3(aq) + H2O(l) NH4+(aq) + OH-(aq).
In Part III, the phenolphthalein indicator is used to monitor the equilibrium shifts of the ammonia/ammonium ion system.
The phenolphthalein equilibrium established with water is
Hph(aq)(colorless) + H2O (l) H3O+ (aq) + ph-(aq)(pink or red).
You compared the color of the solutions in three test tubes that initially contained 3 mL of 0.1 M ammonium hydroxide and a few drops of phenolphthalein indicator. In the first test tube, you added 1 M NH4Cl dropwise.
What color change was observed and what did this color change indicate about the shift in the phenolphthalein equilibrium?

ansver
Answers: 1

Another question on Chemistry

question
Chemistry, 22.06.2019 04:30
What are the three major branches of natural science? • earth and space science, life science, physical science •earth and space science, physical science, chemistry •physical science, life science, chemistry •life science, chemistry, physics
Answers: 1
question
Chemistry, 22.06.2019 22:30
Which is a characteristic of the electron sea model for metallic bonding? molecular orbitals overlap to produce bands. electrons flow easily between metal nuclei. electrons are in fixed positions in the orbitals. atomic nuclei are arranged in an irregular pattern.
Answers: 3
question
Chemistry, 23.06.2019 22:00
Calculate the partial pressure, in atmospheres, of o2 in the dry air outside an airliner cruising at an altitude of about 20000 ft (6096 m), where the atmoshperic pressure is 351 mm hg. how much must the outside air be compressed to produce a cabin pressure in which the partial pressure of o2 is 0.200 atm?
Answers: 2
question
Chemistry, 24.06.2019 00:00
Which of the following is not one of the observed characteristics of our solar system?
Answers: 1
You know the right answer?
Part III. Ammonia is a weak base and establishes the following equilibrium in water:
NH3(aq) +...
Questions
question
Mathematics, 22.04.2021 07:40
question
Mathematics, 22.04.2021 07:40
Questions on the website: 13722367