Paragraph 1 The objective of the experiment is to test; how will water temperature affect the rate of reaction of an alka-seltzer tablet? The dependent variable of the experiment is the dissolving time. When an alka-seltzer tablet starts to fizz it begins to dissolve, due to the citric acid and sodium bicarbonate the tablet contains (Clark, “Why does Alka-Seltzer fizz?).
Introduction: The aim of this experiment was to see whether water, Powerade or orange juice contained more electrolytes. Electrolytes are responsible for controlling the total amount of water in the body, regulating blood volume and maintaining muscle and nerve function. A lack of these electrolytes can cause headaches, fatigue, confusion, hallucinations and muscle spasms. I found that water and distilled water were less conductive than the orange juice and Powerade and orange juice proved to be the most conductive.
The hypothesis that the scientist will be testing is that alka seltzer tablets with smaller particles will react faster than tablets with larger particles. This would happen because the water would not have to break down the tablets as much as it would with the tablets with larger particles. Without having to break down the tablet, the water could begin reacting immediately with the tablets having smaller particle size. The scientist will do this by placing tablets of alka seltzer, each with different particle sizes, into water, and measuring the
Before the water reach to the consumer 70% of the permeate water goes to potabilization or remineralization while 30% goes the demineralization. In potabilization plant four chemicals are added which are: Sodium hypochlorite It is added for final disinfection of treated water Sodium fluoride This chemical must be existed in the potable water because when it dissociate fluoride is produced as shown in the chemical reaction: NaF → 〖Na〗^++ F^- The fluoride used to protect the teeth in two ways: Protection from demineralization - when bacteria in the mouth combine with sugars they produce acid.
Introduction The goal of the experiment is to examine how the rate of reaction between Hydrochloric acid and Sodium thiosulphate is affected by altering the concentrations. The concentration of Sodium thiosulfate will be altered by adding deionised water and decreasing the amount of Sodium thiosulphate. Once the Sodium thiosulphate has been tested several times. The effect of concentration on the rate of reaction can be examined in this experiment.
With a lot solutes in the urine the surface will probably be very dense with the urinometer, which will cause it to float more and read a lower number. The release of ANP will help get rid of the surplus of solutes and caffeine, this means that the flow rate volume for coke will probably be a high
Hydrochloric acid is a chemical used in the process of digestion and is a vital to our ongoing health and well being. The concentration of hydrochloric acid in the stomach is approximately 0.05 – 0.1 moles/litre (M). However hydrochloric acid at 18% is used in many industrial processes and has the capacity to melt steal. Aim The purpose of this experiment is to investigate how altering the concentration of hydrochloric acid, when reacting with sodium thiosulfate, can change the rate of a reaction.
Rinse the Erlenmeyer flask with about 10 ml of solvent and pour the solvent through the funnel, too. Remove the funnel, add two or three boiling chips and reattach the thermometer and adapter to the still pot. • Discard the magnesium sulfate remaining in the Erlenmeyer flask by dissolving it in tap water and pouring the solution down the drain. • Before beginning the distillation, weigh a clean, dry 1 narrow mouth screw cap bottle on a balance. Remove the cap of the bottle, and insert the clean, dry plastic long-stem funnel in the neck of the bottle.
My group recorded higher heart rate compare to the class average when we used caffeine on the Daphnia as seen in Figure 2. Several errors could have accounted for this data. This including perhaps the Daphnia’s heart rate may have changed because of fear while being moved from the bowl to the microscope slide. Another possible error could have also been the amount of time that it took to change the solutions, which could have accounted for slight variations in heart rate. Temperature is yet a further error to account for as the microscope slide temperature was constantly changing to view the specimen, and change the dosage of caffeine or alcohol.
The aim of this experiment was to create Butyl Ethanoate by the process of reflux esterification using 1-Butanol (, 16mL) and Ethanoic Acid (17.4M, 10mL) as raw materials. A catalyst sulphuric acid (18.0M, 2.0mL) was used to offer an alternate reaction pathway and forcing the equilibrium to shift to the right as it is a dehydrating agent result in a greater yield of ester. All reactants were heated under reflux for a total time of 45 minutes, boiling chips were added into the pear shaped flask to encourage even boiling and prevents the occurrence of superheating.
Alka-Seltzer tablets are used to treat headaches, stomach and body aches and also heartburn. They consist of citric acid (C6H8O7), baking soda (NaHCO3), and aspirin (C9H8O4). The fizzing observed is a result of a chemical reaction between the citric acid and baking soda which form carbon dioxide in turn causing the fizzing. When the tablets are dropped into water they dissolve and dissociate into the ions in the equation: C6H8O7 (s) → 3H+ (aq) + C6H5O7 3- (aq).
If I had a chance to do this experiment once again. I would improve this experiment by actually testing, whether temperature affects the rate of reaction of the alka seltzer tablet, by having the water be hot, warm and cold, and determine at which temperate does the tablet dissolve faster. I could also change the amount of water I used during the experiment, as I only used 100ml of water in a 400ml beaker. I would also change the temperate of the room. A further investigation can study how temperature affects the rate of reaction between water and alka seltzer tablets.
Alka-Seltzer is something that when it gets put into water it has a chemical reaction because it starts to bubble up and when it starts to bubble up the bubbles are carbon dioxide gas. Chemical reactions start when matter is mixed with other matter, you can recognize new compounds by their color or by their acid levels or how a compound looks, feels, or how it acts. Substances create a solid compound. The chemical reaction also happens from more products and properties. They can have one or more products or properties.