Alka seltzer contains a combination of aspirin, citric acid, and sodium bicarbonate (baking soda). The aspirin works to relieve headaches and muscle pain. The last two ingredients, citric acid and sodium bicarbonate, are simply a mixture of a weak acid and a weak base (when you add alka seltzer to water, the fizzing is the reaction of the two with each other). When you have a weak acid and a weak base, the result is a buffer solution, which works to stabilize the pH.
Aspirin (Acetylsalicylic acid) is also a weak acid which would be water soluble. However, in drinking water it will dissolve slowly. Adding a weak base (sodium bicarbonate) would help force the aspirin into it's conjugate base form, increasing the polarity, and thus increase solubility.
Other WikiAnswers pages indicate a pH of 9.2, a basic solution which is probably to increase the solubility of the Aspirin, as well as both buffering the effects of Aspirin's acidity on the stomach lining, as well as working as an antacid to buffer the stomach acid.
One notes, of course, that Sodium Bicarbonate (NaHCO3) dissociates in water (with the help of acetic acid) into Na+ OH- CO2, I.E. Sodium Hydroxide, a base, and Carbon Dioxide which would be the direct cause of the fizzing effect.
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If it seems to work as it should I would say that all the ingredients are in alka seltzer.
Alka-Seltzer includes aspirin and sodium bicarbonate in its ingredients. A stomach feels upset due to acid. Alka-Seltzer works as a base to neutralize the acid.
Aspirin and sodium bicarbonate are the ingredients in Alka Seltzer. Two tablets are the equivalent of two regular aspirin and baking soda, which is an acid reducer in itself. But the sodium bicarbonate in alka seltzer is heat treated.
Alka seltzer has sodium bicarbonate (baking soda) and citric acid in its ingredients. when the alka seltzer hits the water, the baking soda and citric acid react, forming the CO2 bubbles that rise to the surface.
Aspirin, Citric Acid and Sodium Bicarbonate (NaHCO3)
There is no chemical formula for alka-selzer, as it is a mixture of multiple compounds. The active ingredients in it are sodium bicarbonate (NaHCO3), citric acid (C6H8O7), and sometimes potassium bicarbonate (KHCO3).
Alka-Seltzer is an antacid.
aspririn and citric acid and sodium bicarbonate
The people in the Philippines believe that Alka-Seltzer is not a medicine and that Alka-Seltzer should not be considered a medicine
Alka-seltzer water has a pH of about 9
Can you take alka seltzer with tamiflu
Alka-seltzer is a white tablet that is used for when your stomch is upset.
Jackson McKinsey was the inventor of alka-seltzer in 1931.
Alka Seltzer dissolves in vinegar because vinegar contains water. Alka Seltzer was designed to dissolve in water.
Yes, alka seltzer does not interact with prozac.
Alka Seltzer dizzolves in 33.1 sedonds
because alka seltzer has to deserved in
Can alka seltzer clean your urine
Alka seltzer dissolves best in coke. There is a famous experiment of dropping alka seltzer tablets in to the coke and watch the stream of foam erupt. This can be possible only if alka seltzer can dissolve quickly enough.
The pH level of Alka-Seltzer is 9.2. Pure water has a pH of 7. Alka-Seltzer is sold worldwide and was first introduced in 1931.
The Alka Seltzer boy's name was "Speedy."
"alka seltzer" po ang tamang "spelling" SEE ALKA SELTZER in your encyclopedia
Alka-Seltzer is used for upset stomach, acid indigestion and headache.
Alka-Seltzer contain aspirin, citric acid and sodium bicarbonate.
If you look at the ingredients for Alka-Seltzer, you will find that it contains citric acid and sodium bicarbonate(baking soda). When you drop the tablet in water, the acid and the baking soda react -- this produces the fizz.