A better and more scientific term for indigestion is dyspepsia. Indigestion is caused by too much acid in the stomach. Indigestion tablets contain bases, which neutralise the excessive hydrochloric acid. The three indigestion tablets that I used all contained calcium carbonate as the active ingredient.
Filter funnel, small - about 35 mm diameter White tile optional Each working group requires: The concentration of hydrochloric acid should not need to be greater than 0.
The concentration needed depends on the formulation of the tablets being tested. This can either be calculated from the tablet formulation if this is straightforward some contain ingredients such as sodium alginate which make the calculation unreliableor by running a test titration using an acid concentration of 0.
The latter result can then be used to calculate a suitable concentration. A total of, say, four or five brands should be sufficient for an interesting exercise in comparing brands.
Once the tip of the burette is full of solution, close the tap and add more of the solution up to the zero mark. Do not re-use the acid in the beaker — this should be rinsed down the sink.
Continue to add the acid until a red colour begins to be seen in the flask that quickly returns to yellow-orange. Refill the burette, if necessary.
Teaching notes Titrating a powdered tablet containing insoluble ingredients such as calcium carbonate, magnesium carbonate and magnesium hydroxide is slow, as you need to allow for the solid to react with the acid.
In particular they ought, if possible without prompting, to read the instructions on each packet concerning the recommended dosage. This could lead to suggestions for further investigations for improving comparisons, but it is unlikely that these will be feasible at school.
This experiment is likely to be more useful in investigative-style work for 14—16 year olds, rather than illustrating the development of understanding of the concept of acidity. However, this experiment enhances such understanding for many students. However, there is a lack of easily found information on the quantitative composition of simple indigestion tablets on the web.
Page last updated October Indigestion is caused by excess acid in the stomach. Indigestion tablets neutralise some of this acid. This experiment shows how you can measure the amount of hydrochloric acid neutralised by one tablet.
This is one measure of the effectiveness of the tablet. This collection of over practical activities demonstrates a wide range of chemical concepts and processes.
Each activity contains comprehensive information for teachers and technicians, including full technical notes and step-by-step procedures.- An Investigation to see How the Concentration of Hydrochloric acid affects the Rate of Reaction with Calcium Carbonate I am going to investigate how concentration of hydrochloric acid affects the rate of reaction between hydrochloric acid and indigestion tablets which contain mainly calcium carbonate.
Mg (s) + 2HCl (aq) -> MgCl 2 (aq) + H 2 (g) Magnesium + Hydrochloric acid-> Magnesium Chloride + Hydrogen Aim The aim of this investigation is to observe the effect that the concentration of hydrochloric acid (independent variable) has on the rate of reaction (dependent variable) between the magnesium ribbon and the hydrochloric acid.
Investigation of Hydrochloric Acid with Indigestion Tablet Introduction In this coursework I will be talking about the experiments, which I have done over two weeks. This gave different results by using different concentrations of hydrochloric acids (HCl) and indigestion relief tablet.
In this classic experiment, from the Royal Society of Chemistry, students carry out a titration to determine how much hydrochloric acid is required to neutralise an indigestion tablet.
Students use different indigestion tablets and compare the results. The resource is set out as teachers' notes followed by the students' page which presents the task to be investigated.
\ Indigestion Tablets Investigation. Indigestion Tablets Investigation. Let us write you a custom I have chosen to use 20cm3 of dilute hydrochloric acid as this completely covers the entire tablet and the reaction will be completed inside 8 minutes.
There will be a reaction between the acid and the indigestion tablet because indigestion. The principle is that the stomach produces hydrochloric acid. This acid provides a medium for the digestion of protein by the enzyme protease. It also kills microbes that may be in the food. An excess of acid can lead to indigestion and indigestion tablets (may) work by neutralising the excess acid.