The purpose of this experiment is to investigate and compare the basic content of two antacids and also compare the prices and thus decide which antacid is more cost effective. This experiment is not hugely significant to the wider scientific community however it can help an uninformed consumer purchase a more cost effective antacid and understand how antacids work. The method used in this experiment is called a back titration. This involves adding HCl to an antacid tablet until an excess of HCl is reached and then titrating that solution against a 0.1mol NaOH solution. This will thus give us the number of moles each antacid neutralises. The average number of moles per gram neutralized by the Rennie tablets was 7.8409x10-3 moles. The average number of moles per gram neutralized by the Mylanta tablets was 6.3122x10-3 moles. It is obvious that Rennie antacids can neutralize more acid than Mylanta antacids. The Rennie antacids are also more cost effective as it costs less per tablet, they are more effective at neutralizing acid and therefore require a smaller dosage and also have no side effects unlike the Mylanta antacids which can cause diarrhoea.
Introduction
Background Information
There are several antacids on the market and many claim to be fast working and provide long lasting relief. An antacid is a substance that has a basic content that reduces the pH of gastric juice in the stomach. pH is a measure of the hydrogen ions in one litre of a solution which indicates the acidity (and basicity) of a solution. The scale used to measure the pH ranges from 0 – 14, 0 being very acidic 7 being neutral and 14 being very basic.
The pH of stomach acid ranges from 1 to 2 on the pH scale. The stomach constantly produces hydrochlo...
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...the tablet.
There are a few changes that should be made to the procedure so that the experiment could generate better results. More time should be allowed to dissolve the tablets as if they are not dissolved colour changes are harder to identify during the titration and also the results are less accurate. The acid used should also be more concentrated as a 0.5mol or 0.3mol would mean a smaller amount of acid would be required.
Conclusion
From the results and discussion it is clear that the Rennie tablet is more effective at neutralizing acid and could relieve indigestion better. The Rennie tablets are also much more cost effective as they require fewer dosages and you get double the amount of tablets for only an extra 30c. The hypothesis was correct as the Rennie tablet had the higher basic content and was thus more effective at neutralizing acid.
Multiple studies have demonstrated the prophylactic effect of rectal declophenate (5-9) and rectal indomethacin (10, 11) or combined diclophenate and indomethacin (12), but no studies have evaluated the prophylactic effect of oral NSAIDs. On the other hand, Almeida et al demonstrated data on the ...
There are three types of treatments to peptic ulcers antacids, antihistamine, and proton pump inhibitors (PPI). The most important and most effective remedy is the PPI, which is the strongest type of medicine out of the three types. PPIs work by inhibiting the release of protons (hydrogen ions) from the parietal cells (the source of acid secretion) to the lumen of the stomach1. There are many several types of PPI for the purpose of this research we will examine the efficacy of only two Omeprazole and
Firstly, an amount of 40.90 g of NaCl was weighed using electronic balance (Adventurer™, Ohaus) and later was placed in a 500 ml beaker. Then, 6.05 g of Tris base, followed by 10.00 g of CTAB and 3.70 g of EDTA were added into the beaker. After that, 400 ml of sterilized distilled water, sdH2O was poured into the beaker to dissolve the substances. Then, the solution was stirred using the magnetic stirrer until the solution become crystal clear for about 3 hours on a hotplate stirrer (Lab Tech® LMS-1003). After the solution become clear, it was cool down to room temperature. Later, the solution was poured into 500 ml sterilized bottle. The bottle then was fully wrapped with aluminium foil to avoid from light. Next, 1 mL of 2-mercaptoethanol-β-mercapto was added into fully covered bottle. Lastly, the volume of the solution in the bottle was added with sdH2O until it reaches 500 ml. The bottle was labelled accordingly and was stored on chemical working bench.
An acid is a substance that produces hydrogen ions, H+ or hydrodium ionsH3O+ in solution. There are three “kinds of acids”: Arrhenius, BrØnsted-Lowry, and Lewis Acid. An Arrhenius acid is a substance the increases the concentration of hydrogen ion, H+ or hydronium ions H3O+when dissolved in water. You must have water. A BrØnsted-Lowry acid is any substance that donates a hydrogen ion, H+ to another substance. A Lewis acid is any substance that accepts a lone pair of electrons.A strong acid is one that breaks apart close to 100% when in solution (example HCl). When dissolved in water, HCl breaks apart into H+ and Cl- ions. Not all acids break apart. A weak acid is/are chemicals that do not break apart well. Acids have a sour taste, they are: corrosive and electrolytes. Acids react with active metals (group 1 or 2) to produce hydrogen gas, H2 They also react with bases to produce salt and water (a neutralization reaction). An Arrhenius base is any substance that increases the concentration of hydroxide ions (OH-) when dissolved in water. A BrØnsted-Lowry base is one that accepts a hydrogen ion, H+. A Lewis base is any substance that donates a lone pair of electrons. Bases have a bitter taste, bases react with acids to produce a neutralization reaction, and solutions that are basic feel slippery. On the pH scale, 7 is neutral. An acidic solution will have a greater hydrogen ion than hydroxide ion concent...
The Standing Committee of the Institute of Medicine used a broad range of research and studies in order to ensure upmost accuracy when compiling the DRI chapter for niacin. One reference, Grace A. Goldsmith M.D., presents information useful for setting the niacin DRI in her article “Niacin-Tryptophan Relationship in Man and Niacin Requirements.”
Acid is produced naturally in your stomach to help you digest food and to kill bacteria. This acid irritates the stomach lining so our body produces a natural mucus barrier which protects it. Sometimes this barrier may be damaged thus allowing the acid to damage the stomach causing inflammation, ulcers and other conditions. Other times, there may be a problem with the muscular band at the top of the stomach that keeps the stomach tightly closed and this allows the acid to escape and irritate the oesophagus. This is called 'acid reflux' and can cause heartburn and/or oesophagitis. Proton pump inhibitors such as omeprazole stop cells in the lining of the stomach from producing too much acid. This can help prevent ulcers from forming or assist the healing process. By decreasing the amount of acid, they can also help to reduce acid reflux related symptoms such as heartburn.
Since acids increase the amount of H+ ions and bases increase the amount of OH-ions. In the ph scale, the strength of acidity and basicity can be measured. The ph scale is a range of 1-14, with 7 as the neutral number. On the ph scale 8-14 is classified as a base and 1-6 is classified as an acid.
Acid-Base balance is the state of equilibrium between proton donors and proton acceptors in the buffering system of the blood that is maintained at approximately pH 7.35 to 7.45 under normal conditions in arterial blood. It is important to regulate chemical balance or homeostasis of body fluids. Acidity or alkalinity has to be regulated. An acid is a substance that lets out hydrogen ions in solution. Strong acid like hydrochloric acid release all or nearly all their hydrogen ions and weak acids like carbonic acid release some hydrogen ions.
Analysis of Aspirin Tablets Aim --- To discover the percentage of acetylsalicylic acid in a sample of aspirin tablets. ----------------------------------------------------------------- In order to do this, the amount of moles that react with the sodium hydroxide must be known. This is achieved by using the method of back titration.
An error that occurred in the experiment was during the ceric nitrate test because solution 4 should have produced a color change. During a base hydrolysis of aspartame, aspartic acid, phenylalanine and methanol are produced, therefore the ceric nitrate test should have been a positive for alcohol. A reason that this could have shown a negative result is because methanol is a volatile substance and it could have evaporated out, which would have caused a negative ceric nitrate test
The objective of this project is to assist in the research of kidney stones, and hopefully figure out which (if any) products will effectively break down kidney stones. During the initial week of the experiment chemicals are mixed synthesizing kidney stones through filtration techniques. The following week home remedies are tested with each of the samples produced during week one. The test conducted are constructed to investigate if the home remedies lime juice and Coca-Cola will break down the
A. a 0.112 per cent w/v solu-tion of orthophosphoric acid adjusted to pH 7.0 using a 4.2 per cent solution of sodium hydroxide,
Acidity can be defined as the amount of acid found in a certain mixture for example in water.
pH levels shows how acidic or basic a substance is. A substance that is neither acidic or basic is called neutral. pH levels are very important in measuring the acidity of something for scientists. The scale ranges from 0 to 14. A pH of 7 is neutral, a pH less than 7 is acidic, and a pH greater than 7 is basic. Sour and fruity candy are very acidic. Some sour candies reach very low pH levels, such as warhead sour spray, which has a pH of one p...
second test tube also add 6 mL of 0.1M HCl. Make a solution of 0.165