What is the difference between luminous flame and non-luminous flame? The luminous flame is a yellow, orange, and bright flame. The non-luminous flame is a blue, purple, and dark flame. The non-luminous flame is a type of flame that is undergoing almost complete combustion. What is the cause of the difference? The cause of the difference is the quantity of oxygen that is mixed with gas. In
was weight to be 3.029 grams using mass by difference since it was weighed on a 150 milliliter beaker. 9.23 milliliters of the acetic anhydride and 14 drops of 85 percent phosphoric acid were added to this beaker. A Bunsen burner provided by the laboratory was then used to boil the just mixed combination by producing a flame underneath the positioned beaker on top, and then allowed to cool for several minutes after the Bunsen burner flame was terminated. Two quantities of distilled water were then
Purpose: Collect the experimental data necessary to construct a solubility curve for potassium nitrate (KNO3) in water. Materials: Balance, hot plate, microspatula, 4 boiling tubes (18 x 150-mm), boiling tube holder, boiling tube rack, 400-mL beaker, thermometer, graduated cylinder, stirring rod, iron ring, utility clamp, wire gauze, marking pencil, potassium nitrate (KNO3), distilled water, safety goggles, lab apron Procedure: 1. Using a marking pencil, the boiling tubes were labeled 1 through
Objective The ability to analyze a substance and determine properties of the substance is an important skill for AP Chemistry students. Major concepts for the “Analysis of Alum” laboratory are percent composition, water of hydration, and molecular formula. They will be used in three different experiments to determine the melting point of alum, the mole ratio of hydrated water to anhydrous alum, and percent of sulfate ion contained in alum. The values acquired in the lab should be close to the calculated
In order to preform this experiment you will need; cotton swabs, agar plates, microscope, unused slides, oil immersion, nigrosin, and crystal violet. The first task we must do is use the cotton swabs and swab an item out side of the laboratory, that has the capability of containing either yeast, bacteria, and mold. My lab partners and I chose to swab one of our group members cell phone. Once we swabbed the phone with the cotton swab, we then each had a plate of agar. To start the process of the transfer
bath, a boss head was used to hold the syringe down. My partner then started the stop clock and I was on hand to count the number of bubbles produced each minute. I intended to work out an average number of three readings. After washing the equipment out we intended to repeat the experiment with 5% and 10% concentrations of glucose. Results I could not get results out of the experiments undertaken, due to the fact that the mixture in the syringe was leaking out. This effected my counting
After the calorimeter constant is found we can move on to part two of the experiment, where we will test each of the four salts in the calorimeter to find out if the salt will be used for a hot or cold pack. Our goal is to first determine the q_dissolution and then to find the heat of dissolution. A -〖∆H〗_dissolution will be an exothermic reaction which indicates that the salt would go in a hot pack. While a 〖∆H〗_dissolution will be an endothermic which indicates that the salt would go in an ice
cross on the paper becomes obscured stop the clock and record the result 7. Rinse out the beaker where the reaction took place 8. Repeat with five different temperatures, using ice to cool down the Sodium Thiosuphate, and repeat it all twice. The equipment I will use is: · Hydrochloric acid · Sodium Thiosuphate · 2 x Measuring cylinders · 2 x Test tubes · stop clock · 2 glass beakers · 2 thermometers · Bunsen burner · water · tripod · heat mat · gauge · paper with pencil cross I will make sure my
Objective: Making alum called potassium aluminum sulfate dodechydrate, from aluminum and potassium hydroxide. Materials: Aluminum foil weighing 1.0254 g ripped into small pieces, 250 mL beaker, Buchner funnel, filter paper, graduated cylinder, 25 Ml of 3 MKOH solution, Stirring rod, 35 Ml of sulfuric acid, 50 Ml of Aqueous ethanol solution. Procedure: we started this experiment by gathering aluminum foil, in the lab manual it does not clearly state how small the piece of foil need to be, so we cut
Intro In Lab #5 five we will be exploring the cycle of copper through many chemical reactions. What we are going to do is take a piece of copper metal put it through a series of reactions that change it¡¦s state of matter and chemical formula, but in the end, we will return it to it¡¦s normal solid state. The idea of this lab is to try to recover as close to 100% of the copper we started with. Theoretically, this is possible, but for inexperienced college students, retrieving 100% of the copper metal
The weight of the magnesium atom was unknown, and it is not possible to weigh the atoms directly due to their incredibly small size and weight. Crucible, clay triangle, Bunsen burner, 10cm magnesium ribbon, scale, flask tongs, retort stand, ring clamp, weight scale. The weight of the crucible after heating it for one minute over the Bunsem burner and allowing it to cool for five minutes was, as shown in Figure 1 above, 26.7 grams. The combined weight of the 10 centimetre magnesium ribbon along
The objective of this lab is to try to separate the different compounds that are contained in cereal. Cereal are composed of different components such as sugar, vegetables oils, vitamin, minerals, and other preservatives. In this experiment we will try to separate the different compounds. I believe that the law of conversation of mass should come into effect in this experiment. The reason being is because the mass of the reactants must equal the same amount as the product even if the reactants go
Procedure To begin with this project, a gel electrophoresis chamber must be built. In this chamber, a plastic box will be the chamber, a stainless steel wire will replicate electrodes, batteries will be the power outlet, and the wells will be replicated by using a styrofoam comb. Hold the plastic box horizontally. First cut two separate pieces of the stainless steel wire with your wire cutters (Remember the gauge must be no smaller than 18 and no larger than 24!). The wire should be a few centimeters
To complete the objective of this density lab, the following equipment were used two 600-mL beakers, 250-mL Erlenmeyer flask, hot plate, ring stand, 250-mL beaker, stirring rod, balance, Büchner funnel, filter paper, stopper, water aspirator, watch glass, fume hood, 10 mL and 50 mL graduated cylinder. To synthesize aspirin a boiling-water bath was prepared by adding 300-mL tap water to the 600-mL beaker and placed on a hot plate with a ring stand around the beaker. Then 2.1g of salicylic acid, 4-mL
Materials and Methods Materials 2 trials worth of materials were prepared for this experiment. 400ml of fish water from the fish water carboy were poured into each of the 2 beakers. Also, 2 new goldfishes were collected for each trial and were placed into one of the fish water beakers. In other words, for the first trial, a set of 2 goldfishes were subjected to both the control and the experimental condition. Then, for the second trial, a new set of 2 goldfishes were subjected to another set of
The design of a laboratory can be crucial when it comes to the efficiency, effectiveness, safety and security. Therefore, it is important that a laboratory is designed and planned out carefully at the start. When designing a laboratory, there are many things that must be taken into consideration to be able to get the best out of the lab. The most important feature that a laboratory should have is safety. There can be many potentially dangerous hazards in a science lab. This means that there are many
Different laboratories conduct different experiments which could involve radioactive chemicals, pathogenic micro-organism which can cause infectious diseases, flammable and explosive substances (Hse.gov.uk, 2015). So the laboratory personnel have a greater effect on the safety as it affects them and the laboratory environment because each individual workers attitude will decide whether they will undergo injury or damage to themselves or the laboratory (Hse.gov.uk, 2015). So without
A Comparison of the Laboratory and Industrial Processes When going through the process of fermentation in a laboratory they use certain methods to achieve their goals and some of the methods that they use are completely different from the ones that are used in the industry of fermentation. A fermenter is a container that maintains optimum conditions needed to grow a particular organism I will be using different criteria’s to compare the laboratory and industrial process of fermentation
Safe working practices in a laboratory are regulated to ensure a safe and manageable environment within a laboratory in order to make practises efficient and safe. In a laboratory all staff and employees should know the types of hazard they are dealing with when it comes to chemicals and substances, they should also be aware of events that they may have never come across before and they also need to be aware of the personal protective equipment and facilities that reduce the risks which include showers
biology and psychology courses. My deepened interest towards the neural basis of memory and learning and its impacts on neurodegenerative diseases such as Alzheimer’s eventually lead me to attain an undergraduate research opportunity in the Mizumori laboratory. The Mizumori laboratory’s primary focus is to understand the neural mechanism of natural and adaptive behaviors. Spatial navigation, a behavior central for an animal’s survival has remained the model under analysis in this lab. Consequently, dysfunction