Dissolution Research Paper

Alka-Seltzer is a medical drug that works as a pain reliever and an antacid. The pain reliever used is aspirin and the antacid used is baking soda. When sodium bicarbonate dissolves in water it splits apart into sodium and bicarbonate ions. The bicarbonates reacts with hydrogen ions from citric acid to form carbon dioxide gas and water. This is how the bubbles are made.

Introduction Alka-Seltzer has been on the market since 1931 and has helped to relieve indigestion and upset stomach. The tablets began to fizz and bubble when dropped into water. “The fizziness happens when baking soda (sodium bicarbonate) and citric acid react chemically in water. They yield sodium citrate, water and carbon dioxide gas, which causes bubbles.” Based on this information, we will measure the reaction time of AlKa- Seltzer dissolved in 200 ml of water at 3 different tempertures in the first portion of this experiment.

Moonshine, white lightning, mountain dew, hooch, homebrew, and white whiskey are terms used to describe high-proof distilled spirits that are generally produced illicitly. Moonshine is typically made with corn mash as the main ingredient. Liquor-control laws in the United States that prohibit moonshining, once consisting of a total ban under the 18th Amendment to the United States Constitution, now center primarily on evasion of revenue taxation on spiritous and/or intoxicating liquors, and are enforced by the Bureau of Alcohol, Tobacco, Firearms and Explosives of the United States Department of the Treasury; such enforcers of these laws are known by the often derisive nickname of "revenooers". History

If I had a household product labeled sodium bicarbonate, I would add an acidic substance and expect bubble to be created. As we know acid reacts with bubbles when combined with sodium bicarbonate. 2. Write the chemical equation for the reaction in well A6. B BoldI ItalicsU Underline Bulleted list Numbered list Superscript Subscript3 Words NaOh + AgNO3>>>>NaNO3 + AgOH 3.

My hypothesis was supported because what I hypothesized happened. If what I hypothesized did not happen, then my hypothesis would have been

When temperature is increased, the amount of obtainable energy increases; meaning that particles will move at faster pace at a higher temperature. Thus rate at which molecules diffuse will progressively speed up as the temperature increases. However if temperature of solution is decreased the rate of osmosis will decrease and rate at which molecules diffuse will be significantly less than that of higher

Weighed 1 gram of NaC2H3O2 and mixed it with ionized water. Boiled 12 mL of 1.0M Acetic Acid added into a beaker containing the sodium carbonate on a hot plate until all the liquid is evaporated

Research Question: To investigate and compare how different temperature (5℃, 15℃, 25℃, 35℃, 45℃) can affect the concentration of carbon dioxide in soda water through titration with sodium hydroxide solution. Introduction: Carbon dioxide plays an important role in soft drinks. Soda water is manufactured by pumping carbon dioxide into water under high pressure. Carbon dioxide dissolves in water to form carbonic acid, which is the fizz we find in soft drinks. CO2 + H2O ⇌

Then the scientist will observe the different rates of reaction with temperature. The Boltzmann distribution of law, indicates that high temperature makes molecules gain high energy contents (pubs.acs.org/doi/abs/10.1021/ja). In order to measure the reaction rate, the scientists must use the same volume of water at three different starting temperatures: hot tap

Alka Seltzer mixture mainly consists of 3 active ingredients; aspirin, citric acid and sodium bicarbonate. The functions of the following components are as follows; Aspirin acts a pain reliever and as an anti-inflammatory (which reduces swelling and inflammation). It does this by preventing the action of a substance known as cyclo-oxygenase which produces chemicals in the body. Sodium hydrogen carbonate and citric acid neutralizes and reduces stomach acid when they react with water.

The sodium citrate then dissociates in aqueous solution to form citrate ions that are able to form a buffer solution. This allows the Alka Seltzer to act as an antacid by neutralising the excess acid in the stomach, as H+ is used to form citric acid. The excess HCO3- ions in the aqueous mixture also act as a buffer which helps to reduce the acidity, further functioning as an antacid. (Shakhashiri B, 1989.) The aspirin in Alka Seltzer acts as an analgesic and also as an anti-inflammatory drug.

In this lab we used two processes called Diffusion and Osmosis. Diffusion is the movement of molecules from areas of high concentration to areas of low concentration. Diffusion is a process that requires no energy and involves smaller non-polar molecules. In Figure 1 you can see the molecules spreading throughout the glass from the area of high concentration, so that the areas with low concentration are filled evenly as well. The other process was osmosis.

The dissolution of the salt could be reversed by evaporating the water as shown in part one of the experiment, just as evaporating the water could be reversed by adding water as demonstrated in part two of the

Upon cooling, it was shaken until no bubbles were formed. 20 mL of each brand of soft drinks was titrated with NaOH solution. 3 drops of phenolphthalein was used as an indicator if it has already completely reacted. The acidity can then be calculated referring on the known concentration and volume of base; and the known volume of acid.

Introduction Solubility is a chemical property that is measured in terms of the maximum amount of solute dissolved in a solvent at equilibrium. The resulting solution is called saturated solution. For example when a sample of sodium chloride solution in water is heated the behavior of the reaction is endothermic obstructing exothermic behavior. Another relationship that can be said about solubility is that the solubility of a solid substance increases as the temperature increases. The solubility of solutes is dependent on temperature.