Some might think that by squeezing the bottle, Mr. Squiddy would go up with the water however, he would go down due to the pipette being used. The pipette had a little air bubble at the top of it, when the bottle was squeezed the water filled into the pipette creating an increase in pressure and a subsequently decrease in volume causing Mr. Squiddy to sink. When released, the high pressure subsided and he floated back up. In the crushing cans demo the cans were heated up with a little water inside and set to boil until steam appeared. Once the can was hot enough it was quickly placed in a bowl of ice cold water and the can crushed itself.
Gently stir the pellets until the acid is dissolved by shaking the the apparatus. Lift the calorimeter lid and wash out its contents and the thermometer. Repeat this experiment using 50.0 mL of 1.0M acetic acid. Repeat experiment using 25.0 mL of each 2.0M sodium hydroxide and 2.0M acetic acid. Data Table(s): Reaction equation Mass of solid NaOH Initial Temp.
Laboratory Report Chemistry Mr. Crider Title: Validating the Gas Laws Purpose: The purpose of this lab is to validate Charles’ Law, Boyle’s Law, and I deal Gas Law by attempting experiments that prove all three Kinetic Molecular Theories are in face true. Hypothesis: If the first procedure shows a fixed amount of gas at a constant will both either increase or decrease simultaneously according to Charles’s Law. If an unknown volume of air has mass in the second procedure, then it is a form of matter because of the presence of atoms. If the third procedure has a fixed amount of gas at a constant temperature, then according to Boyle’s Law the volume of the gas will increase as the pressure of the gas decrease or vice versa. Materials: Safety Goggle Laboratory Apron 60-cm3 syringe with end cap 2 utility clamps Ring stand and ring Wire gauze 600-mL Beaker Thermometer inserted into spilt stopper Bunsen Burner Air pump w/ pressure gauge Balance 1 L Graduated Cylinder (or assume syringe vol.
The opposite of boiling is CONDENSATION (Boiling point is 100 degrees). This happens when molecules of gas start to stick together and form droplets of liquid. When water in a pan boils, for example, it turns to water vapour, which is an invisible gas. But almost immediately the water vapour condenses into tiny droplets in the air, which we call steam. Lastly, to get a liquid back to a solid, it simply needs to be FROZEN, (freezing point is 0 degrees) this can happen but putting the liquid in cold place for example a freezer where the temperature is below 0 degrees in order for it to change back to its original state.
Oxygen: B. Reacts the same as hydrogen with gas bubbles rising to the surface. F. I believe we fill the gas generator test tubes almost to the top with the chemical s to eliminate as much air as possible and to speed up the gas transfer to the pipet. 3. Hydrogen and Oxygen Mixture G. A balanced equation for the reaction between Hydrogen and Oxygen is 2H2 + O2 -- 2H2O Data Table: Experiment Results | Gas | Flame reaction | Glowing splint | Limewaterreaction | BromothymolBlue reaction | Hydrogen | Small Poof with flame, then blew flame out | | | | Oxygen | | Glowing splint flamed back up when inserted | | | Hydrogen & Oxygen | | | | | Carbon Dioxide | Puts the flame out | | Turns the limewater a milky color | Turned the blue water to a yellow color | Alka Seltzer | | | Increased the volume of the water/add CO2 | | Breath | | | I saw no reaction | | Questions: Questions: A. We fill the gas generator tubes almost to the top to eliminate as much air as possible and speed up the gas transfer to the pipet.
Part II: Charles Law Lab A sample of gas is sealed in a closed container with a moveable lid and an attached heater. The pressure inside the container will be held constant throughout the entire experiment. There is an attached thermometer that displays the temperature inside the container. As you increase or decrease the heat from the heater, the moveable lid of the container will move and you will use the markings on the side of the container to measure the resulting volume of the gas. 1.
Explain your answer. The freezing of mercury is a reversible physical change because the change can be reversed by melting the frozen mercury so it is liquid again. Practice Problem #10 on page 46 10. Air is mainly a mixture of nitrogen and oxygen, with small amounts of other gases such as argon and carbon dioxide. What property could you use to separate the gases in the air?
We determined that the mass of zinc necessary to completely react with the copper (II) ions in the solution was 1.308g. We added an excess of 0.050 to make sure the copper completely reacted. 1.358g of zinc was then added to the solution. The solution with the zinc was heated and stirred until it was colorless, showing that the reaction was done. Hydrochloric acid was then added to the solution until the bubbles stopped in order to completely get rid of all of the zinc.
Starting at the bottom we have a lifting charge which contains good ole black powder. The lifting charge gets the party started by creating an explosion after it is ingnited by the fuse. An explosion occurs which produces hot rapidly expanding gases . This is an example of the “Law of Volumes” which is an experimental gas law which describes how gases tend to expand when heated. Since all the kenetic energy is contained in a tube the shell has no place to go but up.
When the gas comes out of the ground, it comes out wet. The first stage of the refining process involves on-site heating of the gas to 212 degrees to evaporate any non-methane hydrocarbons and fluids that are mixed into the gas. (Arthur, 2008) The condensate that is generated from this process is then vented into the atmosphere. The condensate often contains the same chemical additives that are added to the well during the fracking process, as well as volatile organic compounds that are naturally occurring in the ground where the gas is stored (Witter,