In this week’s lab, the dissolving sugar lab, I created an experiment to investigate the effect that the temperature of water has on the water’s capability to dissolve sugar. I used cold, hot, and room temperature water for this experiment. Mixing sugar and water together makes it a solution. A solution is a liquid mixture where the solute, in this case the sugar, is equally distributed within the solvent, the water. My question was “which temperature of water will the sugar dissolve in the fastest?” With all the information I gathered, I can now form a hypothesis. Since I used water at 3 different temperatures, I formed 3 hypotheses. If I stir the sugar in the cold water, then it will take 45 seconds to dissolve. If I stir the sugar in the room temperature water, then it will take 25 seconds to dissolve. If I stir the sugar in the hot water, then it will take 15 seconds to dissolve. In almost every lab, there’s a independent and dependent variable, a constant, and a control …show more content…
The materials I gathered were 3 grams of granulated sugar, 50 mL of cold, room temperature, and hot water, a glass beaker, a balance, a thermometer, a stopwatch, cups for each water temperature, a spoon, and a straw to stir the sugar in the water. The first step in this lab is to pour 50 mL of hot, cold, and room temperature water into a cup using a beaker. Then using the thermometer, get the temperatures of the three types of water. Next, weigh the wax paper on the balance and later add the amount of sugar you want to use for each cup. After you got the amount of sugar you want, pour it into one of the 3 cups. Use the straw to stir it up until it completely dissolves and the stopwatch to record how long it takes for the sugar to dissolve. Keep repeating this step until you dissolved the sugar in all 3 cups. Make sure your record your results as you perform this
Hypothesis: The Alka Seltzer will dissolve fastest in hot water and slowest in cold water.
2. Drop a gummy bear into each of your prepared beaker or cup and place the beaker or cup
This experiment will show how the temperature of water will affect how quickly a Alka-Seltzer tablet will dissolve. (Rowland) This experiment seemed appealing to me because it sounded interesting to experiment with chemical reactions. “How does the temperature of water affect how quickly an Alka-Seltzer tablet will dissolve?”
Alka Seltzer Dissolving at Different Temperatures. The variable that I will change will be the temperature of the water. that the Alka Seltzer is put in. For my results I will measure the time taken for the Alka seltzer.
From 1773 to 1775 the Americans felt the weight put to them by the supreme approaches. The mix of the brutal duties and the absence of an American voice in Parliament offered ascend to types of protection which drove thirteen settlements in North America to consolidated to break free from the English Domain, joining to wind up noticeably the Assembled Conditions of America. Before the finish of the Seven Years War there was nearly nothing, assuming any, motivation to trust that one day the American settlements would embrace an unrest with an end goal to make a free country state. As a piece of the realm the provinces were shielded from outside intrusion by the English military. Consequently, the pilgrims paid moderately few assessments and
Planning Firstly here is a list of equipment I used. Boiling tubes Weighing scales Knife Paper towels 100% solution 0% solution (distilled water) measuring beakers potato chips Cork borer. We planned to start our experiment by doing some preliminary work. We planned to set up our experiment in the following way.
According to osmosis theory as the concentration of the sucrose solution increases the particles water potential increases and becomes higher than the particles that are in the
Plan 1. Collect 4 different sized beakers 2. Boil some water in the kettle 3. Pour 50ml into each beaker 4. After 1 minute check temperature 5.
Start with the hot water and first measure the temperature. Record it. 8. Then pour 40 ml into the beaker. You can measure how much water was used by looking at the meniscus.
The rate at which Alka-Seltzer tablets reacts with water Statement of problem The aim of the experiment is to find out the rate at which Alka-Seltzer tablets react with water. The input variable that I will change is temperature. The output variable will be measured by the time it takes for the Alka-Seltzer tablets to dissolve.
In a 100ml beaker place 50mls of water, measure the temperature of the water and record this initial temperature onto a table. Set the timer and add one teaspoon of Ammonium Nitrate to the water, stir this continuously until the Ammonium Nitrate has dissolved.
Although many of us enjoy consuming chocolate, it is not very often that we stop and consider the process that takes place before it melts in our mouths. Food science is a complex and fascinating subject, which encompasses multiple disciplines, like food chemistry, food engineering, food packaging, etc. The question I will try to answer for this project is: which type of chocolate will melt faster when exposed to a lamp? Three different types of Hershey’s chocolate will be used: Dark Chocolate, Milk Chocolate and Cookies and Cream. My initial hypothesis is that the Cookies and Cream chocolate will melt faster, based on the aspect and composition of this type of chocolate bar.
Sugaring is a technique very similar to waxing with different benefits. Anyone who has waxed or considered waxing should take this option of hair depilation into consideration. It has been around for thousands of years, originated by the ancient Egyptians; its other term is hallawa, which is what sugaring is referred as in Egypt. Sugaring is similar in the sense of waxing because it is all natural, chemical free, and has about the same hair regrowth rate for hair. Sugaring would be best compared to hard wax because there is no use of strips in the process. It is slightly different in the sense that it can be made right at home for an affordable amount and there is no use of sticks. Wax also becomes a liquid when warmed for use, where as sugaring becomes a paste or gel that is room temperature and only clings to the hair and not the skin, like hard wax. There are kits available to purchase for sugaring, but the cheaper, less expensive route would be to make it yourself. All you need is 2 1/2 cups of granulated white sugar, 1/4 cup of lemon juice, and 1/4 cup of water. You will also need baby powder and a washcloth for the process, but that comes later. You will need a pot, a wooden spoon, and a glass jar if you are interested in storing the sugaring mixture for later. First you will combine the 2 1/2 cups of sugar, the 1/4 cup of water, and the 1/4 cup of lemon juice into a pot and cook on high heat until the mixture starts to boil; make sure to stir the mixture with a wooden spoon consistently. Once the mixture has reached a boil, stir until golden brown and then remove the pot from the heat until it cools down. Let the mixture sit and cool until it is cool enough to touch and then proceed to take the suga...
We then cut our potato tubes with the cork borer and cut them with the scalpel so they were the same length and weighed them. We then put one potato tube in each test tube and then added the same amount sugar solution in to each tube. The concentration of sugar solutions varied in each test tube.
Looking at the table of results above and the graph, it is shown that the higher the temperature got, the shorter the reaction time. The obtained results have been plotted on a line graph of the temperature of hydrochloric acid (y-axis) against reaction time (x-axis). This line graph in fig.2 also clearly shows that as the temperature increases, so does the speed of the reaction, shown by a reduction in the time taken. This corroborates the collision theory, where as the temperature of particles increase, the particles gain more kinetic energy and react with each other upon collision. This is shown as to happen in the hydrochloric acid, where the hydrochloric acid particles collide more with the particles of the magnesium ribbon as the temperature was increased. The above graph shows a gradual sloping curve, which gets steeper at higher temperatures. This shows that the reaction will reach a peak rate of activity as the gaps between the temperature and reaction times continue to decrease. The experiment fulfills the aim and clearly shows that as the temperature of a reaction is increased so does it’s rate of reaction, proving the hypothesis to be correct.