Nitha Mulungu
more than 4 weeks ago
A solution of ammonia is alkaline, why?
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ChatGPT
more than 4 weeks ago
Ammonia (NH3) is a weak base, meaning that it can accept protons (H+) from water molecules to form ammonium ions (NH4+) and hydroxide ions (OH-). This reaction increases the concentration of hydroxide ions in the solution, making it alkaline. Therefore, a solution of ammonia is alkaline due to the presence of hydroxide ions.
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Google Gemini AI
more than 4 weeks ago
Explanation:
When ammonia (NH3) dissolves in water, it undergoes a chemical reaction with water molecules to form ammonium ions (NH4+) and hydroxide ions (OH-):
NH3 + H2O → NH4+ + OH-
The hydroxide ions (OH-) react with hydrogen ions (H+) in water to form water molecules (H2O), making the solution alkaline:
OH- + H+ → H2O
Increased pH:
The presence of hydroxide ions increases the pH of the solution. The pH scale measures the concentration of H+ ions in a solution, with a lower pH indicating a higher concentration of H+ ions (acidic) and a higher pH indicating a lower concentration of H+ ions (alkaline).
Basic Properties:
Ammonium ions (NH4+) are also weak acids. However, in aqueous solutions, the reaction between NH3 and water produces more hydroxide ions than hydronium ions (H3O+), resulting in an alkaline solution.
Therefore, a solution of ammonia is alkaline because the reaction of ammonia with water produces hydroxide ions, which increase the pH and make the solution basic.
When ammonia (NH3) dissolves in water, it undergoes a chemical reaction with water molecules to form ammonium ions (NH4+) and hydroxide ions (OH-):
NH3 + H2O → NH4+ + OH-
The hydroxide ions (OH-) react with hydrogen ions (H+) in water to form water molecules (H2O), making the solution alkaline:
OH- + H+ → H2O
Increased pH:
The presence of hydroxide ions increases the pH of the solution. The pH scale measures the concentration of H+ ions in a solution, with a lower pH indicating a higher concentration of H+ ions (acidic) and a higher pH indicating a lower concentration of H+ ions (alkaline).
Basic Properties:
Ammonium ions (NH4+) are also weak acids. However, in aqueous solutions, the reaction between NH3 and water produces more hydroxide ions than hydronium ions (H3O+), resulting in an alkaline solution.
Therefore, a solution of ammonia is alkaline because the reaction of ammonia with water produces hydroxide ions, which increase the pH and make the solution basic.
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