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What is alka-seltzer, the tablet that dissolves in water?

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Currently there are "7 comments" on this Question:

  1. Ligia says:

    Jun 30, 2010 Alka-Seltzer® tablets fizz furiously when dropped into water. The moment the tablet starts dissolving, a chemical reaction occurs that releases

  2. Jodi says:

    That could work if you used a balloon and a sensitive scale. Make sure that you convert the mass of the CO2 into moles, then use that for moles of Carbonate to estimate the mass. Another way: Since your chemical equation predicts that All of your Carbon is escaping as Carbon Dioxide, then you can weigh everything before and after, and the weight lost from Carbon Dioxide could be converted to moles, and you can then establish how many of moles Cabonate you had. The problem here is that you need a very sensitive scale, or a lot of AlkaSeltzer.

  3. Mariah says:


  4. Lexie says:

    This happens because heat makes the particles of the tablet speed up and move around quickly, causing the tablet to dissolve. Generally the solubility of solid materials in liquids is increasing with an increase of the temperature. More:http://wiki.answers.com/Q/Why_does_a_alka-seltzer_tablet_dissolve_slower_in_cold_water

  5. Maurita says:

    I’m fairly certain that they do not. Unless you mean "dissolve faster in cold water than in gasoline", which is probably true. More:http://wiki.answers.com/Q/Why_do_alka_seltzer_tablets_dissolve_faster_in_cold_water

  6. Larissa says:

    In hot water the molecules move around more quickly. This means that when they bombard the alka seltzer tablet, they do so more quickly and with more force. This has the effect of dissolving the tablet more quickly. More:http://wiki.answers.com/Q/Why_do_alka_seltzer_tablets_dissolves_faster_in_hot_water

  7. Chrystal says:

    Alka-Seltzer reacts with water to dissolve, creating carbon dioxide. They should time how long it takes the tablet to dissolve in each liquid and hypothesize in Detail:http://www.ehow.com/info_8066489_coke-alkaseltzer-science-projects.html

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