Introduction: In this assignment, I will be doing two experimentations on examining the impact of temperature on the Alka-Seltzer’s response time. The first experimentation that I will be doing involves some water that is room temperature. The second experimentation that I will be doing involves some water that is very hot. If I want to be able to figure out the impact of the temperature on water, I will have to document the time it will take for the Alka-Seltzer to go into solution. Materials: The materials that I will be utilizing during these experimentations are three to four ice cubes, one cup for measuring, six unblemished cups, one stopwatch, one hot water source, three tablets of Alka-Seltzer, one thermometer that measures from negative …show more content…
The second step that you will need to do is to fill the boiled water up in an unblemished glass cup that reaches the exact amount of sixteen ounces. The third step that you will need to do is to get the recording of the water’s temperature. The fourth step you will need to do is to place two tablets of Alka-Seltzer in the water. The fifth and final step that you will need to do is to get either a stopwatch or a timer and calculate the specific amount of time it will take for these tablets of Alka-Seltzer to completely …show more content…
In each of the experimentations I studied, I have determined how the temperature of the water alters the speed of the Alka-Seltzer tablets being disintegrated. I have selected to differentiate on these two specific components because I wanted to collate and evaluate the number of carbon dioxide being created from the two dissimilar water temperatures. 3. The other key essentials I needed in order to control my experimentations were how much time it took, the quantity of water being utilized, and the temperature of the water. I have controlled both of these key essentials by utilizing a timer, a graduated cylinder, and a thermometer. 5. My hypothesis on the outcomes of each key essential that were being examined in both of my procedures was if the waters temperature gets warmer than before, more carbon dioxide will be created during the time of the reaction, correlated to the temperatures that are slightly lower. My other hypothesis on the outcomes of each key essential that were being examined in both of my procedures was the quicker the Alka-Seltzer tablets disintegrate; the amount of time being wasted for the carbon dioxide getting discharged decreases because this could cause some kind of alteration over the time of the
Our original question was what is the effect of different types of water on an Alka Seltzer tablet? What we were measuring was which type of water will make the tablet dissolve the quickest. Our hypothesis was the salt water would dissolve it the fastest, then the pond the second, and tap would take the longest. The results ended up being that the tap water would dissolve the tablet the fastest, then the pond water, and the the salt last. Our three controls are the amount of salt, the amount of water, and the size of the tablet.
A buffer solution minimises change in PH of a solution when small amounts of acid or alkali are added to the solution, with an an acidic buffer solutions maintaining a PH<7 (ChemGuide, 2017). It works through an equilibrium, so if the concentration of H+ or OH- are changed, equilibrium will shift to oppose this change and return solution PH to original value. The Alka Seltzer mixture contains an excess amount of the bicarbonate ion which is vital for the buffering action taking place within the solution. This is because the excess bicarbonate ion present, allows the solution to act as a buffer as it’s able to react with small quantities of acids and bases added to the solution, therefore resisting a change in PH by neutralising them.
The beginning temperature of the substances used was between 21∘C and 22∘C. By 90 seconds into the experiment the temperature was at 72∘C. Immediately after 90 seconds the experiment had ended because then the temperature of the mixed substance was decreasing to go back to room temperature where it started. The final temperature that my group took was 33∘C at 8 minutes and 12 seconds.
They use a “Siemens Ultramat three nondispersive infrared gas analyzer with a water vapor freeze trap” to collect levels of carbon dioxide. Can one of these determine the amount of carbon dioxide in alka seltzer tablets? Possibly, but they are not readily available. Another way to test carbon dioxide levels is using the eddy covariance technique.
The Effects of Temperatures on Reaction Time of Alka-Seltzer Emily Reynolds October 11, 2015 General Biology Laboratory Northwest Missouri State University Mrs. Heather Meler INTRODUCTION It has been observed that chemical reactions occur at different rates. But, what causes the rates to change? One of the most effective ways to find the answer to that question is through experiments. It has been learned through experimentation that the concentration of a chemical and the temperature can affect the rate of the reaction (Taylor and Mortimer 2002).
In the second portion of this experiment we will keep the temperature constant and divide the ½ tablet of Alka- Seltzer into 2 pieces ,3 pieces and an unbroken ½ tablet. It is my belief that Alka-Seltzer
Sariah 's Science Portfolio Question - How does the amount of a substance affect the rate at which temperature changes? Hypothesis - It could be hypothesized that the more mass of water, there is, the longer it takes to heat up. Materials list - Water, graduated cylinder, 2 cups, thermometer. Safety procedures - Be careful when handling the hot cups; wear shoes that cover your toes; don 't wear dangling jewelry and don 't wear billowing shirts.
If dry ice is placed in Coca Cola, then it will sublimate the fastest because the carbonation bubbles that are in Coca Cola will scrape the sides of the piece of dry ice creating friction and heating it up the fastest. Table 1. Experimental Variables
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).
Exploration Title: Effect of Temperature on rate of Osmosis Submitted By: Abdulkarim Kamal Date Submitted: October 19th 2015 Subject: Biology HL Teacher: Mr. Nick Aim: This is an investigation to determine the relation between temperature of a solution (sucrose) and the rate of osmosis Scientific Context: Osmosis is defined a passive transport process in which a fluid diffuses across a semi-permeable membrane, from an area of high solute concentration to an area of low solute concentration and vice-versa. There are various factors that could potentially influence the rate of osmosis; these factors include volume, concentration, and temperature. If all external factors that may interfere with rate of osmosis are controlled, the results will show equal amounts of fluid on both sides of the barrier (membrane); this is known as an “isotonic” state.
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 ⇌
To be able to conduct this experiment multiple materials were needed, and these materials were a measuring cup, a food scale, and 12 oz of the following drinks; water, Pepsi, Root Beer, Sprite, and Mountain Dew. The measuring cup was used to measure the amount of each soda. This was used to make sure that no mistakes were made while setting up the experiment. A food scale was used to measure the weight in ounces of the drinks. This was done to measure the change in weight over time.
Suggested Title: The only recipe you will need for French Press Coffee! Suggested Title: A guide for Brewing Perfect French Press Coffee! Suggested Title: Read This To Make Delicious French Press Coffee! Also known as Melior or press pot, French Press is one of the simplest ways to brew deliciously full bodied and aromatic coffee. In fact, when you compare it with the espresso and even the latte the method for making French Press comes across as distinctly low tech.
The experiment was about discovering if Schweppes were true in saying that their soda water would not lose its effervescence even if the lid was left open. To investigate if Schweppes soda water was actually able to keep its effervescence even after being un-bottled, the lid being left off, various different temperatures and leaving out to set over the course of various experiments simulating all these scenarios. Drinks are carbonated to provide the bubbly and fizzy taste. Aim: Introduction: In soda water the term effervescence means bubbles or fizz in a liquid and Schweppes has claimed that their soda water will stay effervescence even with the lid left open, soda water is made when carbon dioxide is liquefied and put into the drink with
Heat up a heating pad to 275 degrees °F before placing the beaker on top of the heating pad. Using a pair of tweezers, carefully drop the pieces of aluminum foil into the water. Allow mixture to sit on the heating pad until dissolved, constantly stirring. Once completed, turn the heating pad off. Measure the beaker on the scale once more and subtract the weight of the 10 mL of water as well as the measurement of the