Lab Report Purpose of Experiment We are conducting this experiment to determine if; ice melts faster in regular soda or diet soda, ice melts faster in regular soda or water, ice melts faster in sugar solution or water or ice melts faster in salt solution (Mg SO 4) or water. Description of Experiment Different solutions of water, regular soda, diet soda, sugar solution and salt solution will be placed in beakers, weighed and acclimated to room temperature. Water will be used as the control. A colored ice cube will be inserted into each solution and the time will be monitored to determine the melting times. The observations, comparisons and data will be recorded and analyzed to obtain a conclusion as to whether or not the hypothesis is true. Data, Observations and Calculations Please see attached data sheets.
Post Lab Questions and Conclusions Water = . 7 g / minutes > diet soda = . 63 g / minutes > regular soda = . 43 g / minutes > salt solution = .
38 g / minutes > sugar solution = . 32 g / minutes 1 a. Regular soda and diet soda Observation: My diet soda always needs fresh ice, it melts very fast. Hypothesis: Diet soda melts ice faster than regular soda due to the lack of sugar in the diet soda. Experiment: Get regular soda and diet soda and gather all data and observe what happens when a colored ice cube is placed in each solution. Data & Observations: See data sheets Conclusion: Diet soda melted the ice faster than the ice melted in the regular soda because the regular soda contains sugar.
The Essay on Specific Purpose To Persuade My Audience To Eat A Healthy Diet
Specific Purpose: To persuade my audience to eat a healthy diet I. Introduction 1. Attention Getter: When you think of someone happy, successful, beautiful which image comes to your mind? An image of someone tired, overweight, sweaty, who is sitting in front of TV with a bowl of potato chips and a large glass of cola? Probably not. Most of us visualize a healthy person as someone who is active, ...
Regular soda is less dense than diet soda. 1 b. Regular soda and water Observation: The ice melts in my water so much faster than the ice in my husband’s soda. Hypothesis: Water melts ice faster than regular soda melts ice.
Experiment: Get regular soda and water and gather all data and observe what happens when a colored ice cube is placed in each solution. Data & Observations: See data sheets Conclusion: Water melted the ice faster than the ice melted by the regular soda due to the sugar content in the soda. 1 c. Sugar solution and water Observation: Adding sugar solution to water increases the time it takes an ice cube to melt. Hypothesis: Water melts ice faster than sugar solution does. Experiment: Get sugar solution and water and gather all data and observe what happens when a colored ice cube is placed in each solution.
Data & Observations: See data sheets Conclusion: Water melted the ice faster than the ice melted by the sugar solution because the sugar solution is more dense, this could be seen by the melted colored ice cube floating on the top of the sugar solution. 1 d. Salt solution and water Observation: Adding salt to ice melts it very fast (i. e.
, salt spreaders on an icy road), therefore, salt solution will melt an ice cube faster then water will melt it. Hypothesis: Water melts ice slower than salt solution. Experiment: Get salt solution and water and gather all data and observe what happens when a colored ice cube is placed in each solution. Data & Observations: See data sheets Conclusion: Water melted the ice at the same rate as the salt solution melted the ice, however, the salt solution had much less volume than the water and the mass of the ice cube melted was more in the water than the salt solution. The salt solution was more dense that the water of the melted ice cube as it was floating on the top of the salt solution after it melted. 2.
Waiting for 10 minutes before placing the colored ice cube in the solution was necessary to let the solutions acclimate to a base temperature. 3. All samples were weighed so the rate of mass of melted ice / time to melt could be recorded and compared. 4. The differences in the rates of melting can be attributed to the following factors: the contents of the solutions (salt, sugar, saccharine) the size of the ice cube being melted the starting temperature of the solution the density of the solution the volume of the solution.
The Term Paper on Sublimation of Dry Ice in Water
Purpose Dry ice is just frozen carbon dioxide (-78 C), CO2 is kind of interesting as, unlike water, when it is cooled at atmospheric pressure; it goes directly from a gas to a solid! And when warming, it goes directly from a solid to a gas! Liquid CO2 is not stable at atmospheric pressure, however in a CO2 fire extinguisher; the CO2 is liquid (at about 840 psi). However, if one uses the ...
