The functional group most likely to ionize when a base is added to a solution is the carboxylic acid group (-COOH). When a base is introduced, it can accept a proton (H⁺) from the carboxylic acid, resulting in the formation of its conjugate base (-COO⁻). This deprotonation process increases the overall negative charge in the solution, making the carboxylate ion more stable in the presence of the base.
Acetic acid is added to the solution, but the pH of the solution does not change. Sodium hydroxide, a base, is added to the solution, but the pH of the solution does not change.
Sodium carbonate is added to increase the pH of the solution.
No colour
halogen acids are polar in nature and water is also polar . when halogen acids are added in water than hydrogen is converted into hydrogen ion and hydronium ions are solvated in water
functional group
Universal indicator added to a toothpaste solution would likely turn a shade of blue or purple, indicating that the solution is basic due to the presence of substances like fluoride or calcium carbonate found in toothpaste.
The yellow solid separated out is likely to be elemental iodine (I2). When substance X is added to potassium iodide solution, a redox reaction occurs leading to the formation of iodine, which appears as a yellow solid.
The colorless solution X is likely to be a solution of potassium iodide (KI). When chlorine water is added to it, chlorine oxidizes iodide ions (I⁻) to iodine (I₂), which forms a dark brown solution due to the presence of free iodine. This reaction demonstrates the characteristic color change associated with iodine formation.
The metallic ion in the solution is likely copper(II) ion (Cu^2+). This is based on its blue color in a flame test, which gives a blue-green flame, and the formation of a blue precipitate when sodium hydroxide is added, indicating the presence of Cu(OH)2.
In a buffered solution, the added acid would likely be neutralized by the buffer system before causing a significant change in pH. The buffer components would absorb the excess H+ ions, helping to maintain the solution's pH relatively stable. If the amount of acid added overwhelms the buffer capacity, the pH of the solution may shift more significantly.
When astatine solution is added to sodium bromide solution, a reaction is likely to occur where astatine displaces bromine to form astatide ions. This would result in the formation of astatide ions in solution and sodium bromide precipitating out as a solid, which can be observed as a color change or cloudy appearance in the solution.
The substance is likely a base, as bases typically lead to an increase in pH when added to a solution. Bases are substances that can accept protons or release hydroxide ions, causing the solution to become more basic.
supersatureated
When a cooled saturated potassium nitrate solution is added to water, the concentration of the potassium nitrate decreases making it less likely that he substance will precipitate out of solution.
If a seed crystal was added to a supersaturated solution, the resulting solution would be a crystallized solution. The formation of solid crystals that precipitate from a solution is called crystallization.
Solution provided the solution is not saturated.
It will dissolve in the solution.