There are 6 bottles of water. Salt is added to the first one, a strong acid namely HCl to the 2nd one, a strong base namely calcium hydroxide to the 3rd one, a weak acid namely vinegar to the 4th one, a weak base namely baking soda to the 5th one and the 6th bottle of water is left in the same way.
What will happen to each bottle, what will each bottle look like and how will each bottle smell if we look at the experiment for the 6th day?
It is difficult to answer this question definitively without knowing the specific amounts of salt, HCl, calcium hydroxide, vinegar, and baking soda added to each bottle. However, some general observations can be made:
1. The bottle with salt added to it may appear cloudy or have visible particles in it. Depending on the type of salt used, it may also have a salty smell.
2. The bottle with HCl added to it may have a strong, acrid smell reminiscent of vinegar or rotten eggs. It may also appear cloudy or have a yellowish color.
3. The bottle with calcium hydroxide added to it may appear cloudy or have visible particles in it. It may also have a slightly soapy smell.
4. The bottle with vinegar added to it may have a sour smell and could appear cloudy or have visible sediment.
5. The bottle with baking soda added to it may have a cloudy appearance and a slightly alkaline smell.
6. The 6th bottle of water, which was left untouched, should look and smell like plain water.
On the 6th day of the experiment, the bottles will have undergone various chemical reactions. Here's what will likely happen to each bottle:
1. Bottle with salt added: The salt will have dissolved in the water, making it taste salty. However, since salt does not generally produce a strong odor, the bottle may not have a distinct smell.
2. Bottle with HCl added: HCl is a strong acid. When added to water, it will dissociate into hydronium ions (H3O+) and chloride ions (Cl-), making the water acidic. The bottle will have a sour taste due to the increased acidity and may exhibit a faint odor resembling vinegar.
3. Bottle with calcium hydroxide added: Calcium hydroxide is a strong base. When added to water, it will dissociate into calcium ions (Ca2+) and hydroxide ions (OH-), making the water basic or alkaline. The water will have a bitter taste and may smell faintly of ammonia.
4. Bottle with vinegar added: Vinegar contains acetic acid, which is a weak acid. When added to water, it will release hydrogen ions (H+) into the solution, making it slightly acidic. The water may have a slightly sour taste and a noticeable vinegar-like smell.
5. Bottle with baking soda added: Baking soda, or sodium bicarbonate, is a weak base. When added to water, it will dissociate into sodium ions (Na+) and bicarbonate ions (HCO3-), slightly increasing the alkalinity of the water. The water may have a slightly bitter taste and a faint smell resembling baking soda.
6. Control bottle (left untouched): Since nothing has been added to this bottle, it will remain the same as regular water. It should have a neutral taste and no specific smell.
Please note that these observations are generalizations based on the knowledge of the chemical properties of the substances involved in the experiment. Factors such as concentration and temperature might influence the exact outcomes.