A Summary Of Combustion Of Alkanol

Procedure and Observations To begin the lab, first all the correct equipment and materials had to be collected

Materials I used. Were a petri dish, scapula, liquids, burner, C-clamp, tongs, gas to start the flame, eight different types of powders, and the most importa martial was our goggles for safety. The petri dish was used to put the powder in for testing. The scapula was used for scooping up the powders.

1. What temperature will have the fastest reaction if a catalase enzyme and hydrogen peroxide are mixed together? 2. If catalase enzymes and hydrogen peroxide are mixed together, then the fastest reaction will occur when the test tube is placed in a 30 degrees C water bath because that is the temperature when and hydrogen peroxide react the fastest. 3.

Modifications of this procedure include the use of hot plates instead of Bunsen burners, and heating t-butyl alcohol to 60-65 ℃ instead of 50 ℃. Other modifications include the use of weighing boats to measure an amount of unknown instead of weighing paper, and completing one run of unknown 2 instead of two runs of unknown 2. Summary of

Compare the color of the unknown substance with a flame color chart. Record down the observations into

The topic of research is, “how fast does an Alka-Seltzer tablet make gas?”. In the experiment, the scientists will be measuring the chemical reaction rates that occur, when 1 Alka-Seltzer tablet is placed in a specific temperature of water. The independent variable during the experiment will be the temperature of the water (degrees Celsius). The dependent variable during the experiment will be, the rate in which gas is produced (in seconds). The constants of the experiment, will be the amount of water used and the Alka Selter compound.

The amounts of propanone, distilled water and HCl were following: 1st solution 2nd solution 3rd solution 4th solution 5th solution CH3COCH3 (cm3) (±1.5 cm3) 100 90 80 70 60 H2O (cm3) (±1.5 cm3) 0 10 20 30 40 HCl (cm3) (±1.5 cm3) 50 50 50 50 50 Therefore, the concentrations of propanone were 2M, 1.8M, 1.6M, 1.4M and 1.2M. Half of the solutions were put in fridge to cool down the solutions and others were left to stay in room temperature over night.

The objective of the lab was to transform cooking oil into biodiesel. This was done in a reaction of fresh cooking oil, which is primarily composed of triglycerides, and methyl alcohol, and was catalyzed by sodium hydroxide. The reactants and products were both massed, so as to see how fully the chemical processes have been carried out. These values were compared with stoichiometrically calculated theoretical values in order to evaluate the reaction’s completeness. Biodiesel is chemically composed of fatty acid methyl esters.

I will then pour water into the beaker to 500ml. 16. I will put the thermometer into the beaker and stir the water, leave the thermometer till the temperature stays constant.-this will give the heated water temperature. 17. I will repeat the same method from step 3 – just attaching the chrome tap to the hosepipe 18.

This includes empty soda can without a top, thermometer, ring stand with iron ring attached, glass rod, 100 ml graduated cylinder, matches, and last but not least two different types of fuel source (propanol, ethanol). Upon completion of the experiment, we got a few notable results. We noticed that the amount of heat absorbed by water is mostly constant between the two but the noticeable difference obtained was with the heat per gram of fuel and heat of

Cyclohexane is put into 25mL round-bottom flask. It is heated to a boil. Once it starts boiling, it evaporates up touching the tip of the thermometer and into the condenser, and out into a graduated cylinder to be recorded. Every 1mL of cyclohexane that dropped into the graduated cylinder, was recorded alongside with the temperature. During the first 3mL of cyclohexane temperature was raising at a fast paste.

➢ Select the flask, and then choose 50 mL of crude oil from the Chemicals menu. Then, by selecting the flask and choose “Chemical Properties” option from dropdown. NOTE: Record the grams of gasoline, kerosene, and lubricating oils that are present in the 50 mL of crude oil. ➢ Select the flask, and choose Heating Mantel option afterward select Max Heat and make sure you record the temperature when you see crude oil begins to boil. ➢ When the crude oil begins to boil, Make sure you turn the temperature down to 60% by decreasing the heating metal two times.

Place the the beaker onto a hot plate that is on a low heat setting (about setting 3). Every 5 minutes for 20 minutes, measure the circumference of the balloon and record it in Data Table A. You can measure the circumference of the balloon by looping a piece of string around it then using a ruler to measure the string’s length. Record the data in the data

The purpose of this lab is to use the combined gas law to find the new volume of the can after the temperature has changed. Also in this lab, the volume changes again and it is found using water displacement. The dependent variable in this lab would be the volume. The independent variable in this lab would be the temperature.

II. METHODOLOGY In order to perform this experiment, the students will need a distillation set-up with a connector receiver, an iron ring and stand, a Bunsen burner, a wire gauze, a 250mL round bottom flask, a graduated cylinder, a thermometer, one or two boiling chips, an alcoholic beverage, masking tape, an ice bath, a stirring rod, and, optionally, food coloring. It is imporatnt to avoid playing with the apparatus and equipment so as to avoid breakage and injuries, especially since fire is being dealt with in this experiment.