apex chemical essay

349mg of solid acetaminophen was weighed and placed into a 5mL conical vial with a triangular spin vane, point facing downward. Next, 2.6mL of 1M NaOH were added to the same vial. An air condenser was attached to the vial; both were clamped to a stability rod above a hot plate. An aluminum block was placed onto the hot plate stabilize the vial. A small thermometer was placed in the same aluminum block. The solution was heated gently and simultaneously stirred for 10 minutes until all solid was dissolved

Laura Caballero February 24, 2017 Physical Science Period 8 Element Biography Hi my name is Aluminum. My symbol is AL, but my name comes from Latin; the original word is “alumen”. My group number is 13, I live in period 3, and I have at least 13 protons and also 13 electrons. Luckily, I was discovered by Hans Oersted in 1825 in Denmark. Like I said before the atomic number is 13. I weigh about 27 (26,982), I have at least 22 isotopes known. My period number is 3, and have several family members

Honors Clinton Introduction Through change in heat, this experiment was done to recognize exothermic and endothermic reactions, which both relate back to the topic of thermochemistry. Thermochemistry is study of energy changes that occur during chemical reactions and state changes. A certain amount of energy is stored in every substance in bonds. A system and its surroundings are used throughout the subject of thermochemistry as a whole. A system is the part of the universe being focused on. The

The water bottles insulation was effective, because when comparing the average change in temperature from the beginning to the end for the insulated bottle (which is 2.7’C) and the non-insulated control bottle (which is 3.9’C), there is a 1.2’C difference in temperature change. To improve my current design, I could model it more after the design of a thermos, a flask that effectively keeps liquids hot or cold. I could add a layer of silver on the inside to prevent heat from coming in and escaping

Intro In this experiment we’ll observe the organism Tetrahymena. The focus of our experiment is to observe Tetrahymena feeding rate when salt is added, we will add .0, .4, .7, and 1 mil liter solution to the organism and see its behavior. Our control group and experimental group will have the same temperature, pressure, PH level and light. The experimental group will be given salt and the control group will not have salt. We already know that the Tetrahymena eat Indian ink and form food vacuoles

NEUR 411- Assignment 3 Ana Persson Intrinsic excitability refers to the predisposition of a neuron to fire action potentials when exposed to an input signal, either pre-synaptic activity or a direct input from a sensory modality (Schulz, 2006). The intrinsic excitability of neurons is responsible for the conversion of synaptic input to the output of a given neuron. The processes leading intrinsic excitability of neurons, also known as intrinsic plasticity, is the constant change of a neuron’s intrinsic

Physiological tolerance lab was done at LaBagh woods forest preserve. we collected data at the LaBagh woods forest on a cold day. class members were divided into groups of 4 members. each group was assigned 3 trees by the professor. each group was given pieces of equipment to record trees data. as we received the equipment each group member assigned themselves what they will be doing. in my group, William measured the distance from the part of the tree 1 in a perpendicular line to the river edge

Hypothesis: The further the away the light meter the lower the intensity will be. I think this because it common sense as if you are moving the more further away from a street light the less amount of the light you can see .So this means that the further away the light meter from the light bulb of course the intensity will be lower . Equipment List • Power Pack • Light bulb • Black drain pipe • Light Meter • Paper • Tape • Scissors • Wires • Crocodile Clips Method 1. First check that

volunteered to work for his dad's Chemical business and he also got into Chemical Technology. After a while Haber decided to take on a scientific career. He soon went to work for one and a half years to work with Ludwig Knorr at Jena. After all that he ended up getting confused and started to wonder if he still wanted a career for science technology during that confusion he got offered in 1894 and a accepted an assistantship at Karlsruhe by a professor of Chemical Technology. In 1896 Haber qualified

Hypothesis: For each element, we believe that its mass and atomic number have a positive linear relationship. We can expect that as the atomic mass increases, the mass of the gas will increase as well. Discussion: Through this experiment, we were look for a relationship between a gas’ atomic mass and its mass. In doing so, we were paying very close attention to two other central ideas of chemistry: accuracy and precision. Accuracy is how close a measured value is to the actual true value, while