What can you say about the solubility of ammonia in water? How will it change the colour of the phenolphthalein ?
Answers
Explanation:
The solubility of ammonia gas in water is about 90 g per 100 mL at 0 °C and about 32 g per 100 mL at 25 °C. The room temperature solubility corresponds to a volume of 460 L ammonia gas dissolving in 1 L of water. The term “ammonium hydroxide” raises consternation among many chemists.
Phenolphthalein is an indicator — a chemical which changes colour depending on whether it meets an acid or a base. It turns purple if it meets something basic, such as ammonia; it stays colourless if it meets an acid like vinegar or a neutral substance like water.
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Answer:
The solubility of ammonia gas in wateris about 90 g per 100 mL at 0 °C and about 32 g per 100 mL at 25 °C. The room temperature solubilitycorresponds to a volume of 460 Lammonia gas dissolving in 1 L of water. It is the name given to a concentrated solution of ammonia in water, which is about 14.8 Molar.
Ammonia is NH3 due to the lone pair at the nitrogen the lone pairs in oxygen from the H2O are attracted forming hydrogen bonds consequently being soluble in water .Solubility of a substance in water relies upon on its polar nature. considering water is polar molecule, it dissolves readily polar molecules.
The phenolphthalein indicator allows chemists to visually identify whether a substance is an acid or a base. Thecolor change in phenolphthalein is a result of ionization, and this alters the shape of the phenolphthalein molecules.