I propose for my hypothesis if the temperature is increases the liquids will the slopes of the chemicals average out or will the slope be greater with the temperature increase?…
This experiment was carried out as described in Class Pak. The heat source power was set to 3 for fractional distillation and to 2 for simple distillation. For both processes, aluminum foil was wrapped around the heat source and flask to trap the heat and speed up the process.…
Discussion: This lab could have been improved by performing the lab simulation multiple times and the data averaged out to reduce the percentage error. The results of this lab correspond to the rules of Boyle’s law, the volume of the container decreased as the pressure increased while the temperature remained the same.…
Boiling water temperature __immediately:104.5; after 5 minutes: 103.0__˚C Step 3: Cold Temperature Measurements Cold tap water temperature _24.5_˚C Ice water temperature after 1 min:4.5, after 5 min:1.0 ˚C Step 4: Volume Measurements Volume of half filled graduated cylinder __12.5__mL Volume of completely filled small test tube __n/a__mL Number of drops in 1 mL ___14_drops Volume of the micro pipet __28__ drops _2___mL Step 6: Density Measurements Part A Mass of empty graduated cylinder _16.9_g Mass of graduated cylinder and water 21.1_g Net mass of the water __4.2_g Density of the water _0.84_ g/mL Part B Mass of graduated cylinder and alcohol…
Since the mass of cold water (100g) is less than the mass of hot water (200g) the temperature change of cold water is greater than hot water.…
1. According to a study of the Mpemba effect by Monwhea Jeng Many factors impact water as it cools and eventually freezes, evaporation can contribute to a loss of mass, Hot water can hold less dissolved gas than cold water and large amounts of dissolved gas escape upon boiling, convection currents and non-uniform temperature distribution happen as water cools, the environmental of the hot sample also impacts the environment around it. Super cooling may also have an important role in the effect, super cooling occours when water freezes not at 0c but at some lower temperature. (Jeng, The Mpemba effect: When can hot water freeze faster than cold? , 2006)…
In the experiment, there are patterns within the data between concentration and temperature. The pattern that is shown in the data is the inverse relationship between concentration and temperature. The pattern is as the temperature increases, the concentration decreases, and vice versa. The results of the experiment support the alternate hypothesis by showing that certain temperatures such as, 0°C, 22°C, and 95°C effect the concentration of the water and potato enzyme solution. In this graph, concentration is on the y-axis and time on the x-axis. In the legend, it displays which line represents which temperature. From the data shown in graph, it can be concluded that a lower a temperature such as, 0°C, will have a higher concentration and a higher temperature such as, 95°C, will have a lower concentration.…
* Use thermometer to measure the temperature of the water in the beaker using Celsius unit. Record measurement in Data Below.…
This essay discusses the mpemba effect and how it works. The definition of the word Mpemba is basically a question where you ask can hot water freeze faster than cold water it can be used as a science fair experiment and to solve other scientific questions.The key aspect discussed in this annotated bibliography is what the mpemba effect is what the history of the experiment is and how it is exactly used that is what it is about.…
I figured the smaller the glassware the more accurate the measurements would be. Which when we were preforming the experiment proved my theory. As the glassware got smaller the easier it was to get the accurate amount of water into the glassware.…
To begin this experiment a water bath was assembled using a 100 mL beaker, and filling it half way with cool tap water. Then, crushed ice was placed in the remainder of the beaker just below the top. Salt was finally added to the beaker and the solution was stirred well. After, a test tube was filled with distilled water, and the temperature was recorded every 30 seconds until the temperature reading was steady for five consecutive 30…
How far is it possible to reconcile the desire for development with the need to manage biodiversity (14)…
The experiments were carried out using a short-wide (SW) glass and a tall-skinny (TS) glass. Orange juice is used as the experiment medium. On visual inspection, these glasses look different in size and shape. Volume of the glasses is given by the relation,…
1. WESCO is a classic intermediary in the channel and must add value for both suppliers and customers to maintain this intermediary position (i.e., otherwise the suppliers might be tempted to “dis-intermediate” WESCO and go direct).…
On Friday October 30, 1987 at Moss Regional Hospital I was born Dana Elaine Gradney to Paul and Rosa Gradney in Lake Charles, Louisiana. I have three older siblings Latreza, Paulrika, and Paul II who came and seen me for the first time before going trick or treating. Once me and my mother was discharged from the hospital my daddy brought us home where we lived in Mossville, Louisiana till the age of two and then my family moved us to Zion, Illinois. In Illinois we were closer to my father’s older siblings I stayed home with my mother while my father worked and my siblings went to school. I have little memory of wearing a snow suit and playing outside with my siblings on Christmas when my brother shot his toy gun piece and it went in the fireplace. Two years later My mother was accepted into nursing school back home so we moved back to Louisiana. I then started Pre-K at Wonderland of Play where I am still friends with three of my fellow classmates today. I then started Kindergarten at Westwood Elementary in Westlake, Louisiana till the fifth grade along with playing softball and school clubs throughout the years. I had many friends’ great memories of sleepovers with family. I remember my parents waking us up saying they heard the reindeers on the roof. They use to trade boxes on our gifts so we would think it was something we didn’t ask Santa for. On my 8th birthday I met my cousin Larissa Tanner for the first time and we became best friends instantly. In 1996 my oldest sister became pregnant with my first niece. On July 8, 1997 Torreyan Kia-Latrece Gradney was born my first niece and my parents first grandchild. In 1998 I moved to Houston, Texas because my mother accepted a better nursing position. I started school at Wilson Intermediate where I met new friends, joined school clubs, had my first boyfriend, and tried out for cheerleading for the first time. My cousin came to Texas every…