Question

buffering capacity of bovine-milk, alka-seltzer, and water as naoh and hcl are added. Quizlet

Answer 1

When the tablet is placed in water, the citric acid reacts with the sodium bicarbonate, producing sodium citrate in solution and releasing carbon dioxide gas. Excess bicarbonate also neutralizes hydroxide ions, helping the solution to resist a change in pH. Alka-Seltzer now also contains aspirin, which is a weak acid.

Answer 2

Buffer capacity (β) is defined as the necessary changes in the acid or base consitution or PH of a solution.

Explanation:

Impact of NaOH (Alkaline) and HCL (acid) on the buffering capacity of bovine-milk -  the effect of alaklination and acidification will change the size of casein molecules in th emilk and allow the pH of milk to restored between the range of 6.0–7.0. The properties such as soluble calcium, ES, and milk whiteness is alos restored by addition of NaOH (Alkaline) and HCL (acid).

Impact of NaOH (Alkaline) and HCL (acid) on the buffering capacity of alka-seltzer : In alka-seltzer when NaOH and hcl are added, they both recats with each other and produces sodium citrate and releases CO2. The sodium citrate acts as an antacid and neutrilises excess of acid and form citric acid. NaOH liberate CO2 and neutrilizes hydroxide ions and resist the changes in pH.

Impact of NaOH (Alkaline) and HCL (acid) on the buffering capacity of water: When NaOH nad HCL are added in water, there is drop in the pH of water as alkalinity components in the water are neutralized by the acid, the concentration of the free hydrogen ions in the water increases .

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