Quantum chemistry

My hypothesis was correct, the ideal results reveal that suspect two was person who committed the crime. Sadly, the actual gel revealed very little and it was incredibly difficult to see and did not come out in the photo. The DNA I have obtained should be pure DNA, since it was filtered and separated from the rest of the solution there should be nothing else in it. In order to be certain of this an indicator could be used in order to test for other substances. The main problem with the DNA…

Visual Observation Dry Texture Test Wet Texture/ Rolling Test Smear Test Nutrients Quickness of drying Sand Particles visible with eye. The heaviest. Feels gritty and falls apart Crumbles No smear Few nutrients Dries quickly Does not hold water well Silt Just enough big to see them with a magnifying glass. Not as heavy as sand but heavier than clay Holds together, feels smooth and powdery Holds together, moderate crumbling, cannot be rolled in a strand Some smear More nutrients than sand Takes a…

In this lab experiment, we will be using an unknown volatile liquid in order to understand the direct relationship between the molecular weight of a gas and its vapor density, which will help us determine the molecular weight of the unknown. The necessary tools that are essential in this experiment include: a balance, watch glass, two pieces of foil (2.5x2.5 inches & 3x3 inches), boiling chips, a ring stand, a thermometer, a bunsen burner, and an 800mL beaker. During this experiment, we have to…

First you need to collect all the things you need for the lava lamp. You’ll need something to do it in, such as: a clear vase, a water bottle, a large clear cup, a clear soda bottle, or something along those lines. You’ll also need water, vegetable oil, food coloring, and at least 2-3 alka-seltzers. For the best results with fake lava lamps use 4 parts vegetable oil and 1 part water. The container for the lava lamp should be mostly vegetable oil with some water. You can also add glitter for more…

In this experiment, the effect of environmental conditions on enzyme functions was tested. The materials needed for the experiment was an amylase enzyme to lower the activation energy of the reactions, starch solutions of pH 3,4,5,6,7,and 8, these provided different concentrations to project various environmental conditions. In addition, Iodine solution, and a spectrophotometer were needed. Each cuvette contained a specific pH concentration. Then the enzyme extract was added to each pH…

Purpose The purpose for performing part III of the lab was to investigate and compare the water potentials of different types of plants; namely, tubers (potatoes and yams) and non-tuber fruits (apples). To determine the water potentials, our focus during the lab was to collect data for osmosis rates in different sucrose concentrations. Background Information Now that we have discussed osmosis and free water, we can introduce the idea of water potential to mathematically represent concentration…

According to the average density and the boiling point of the experiment, the probable identify liquid of M4C is Propanol (Isopropyl alcohol), with the density value is (0.788 g/mL) and boiling point is (82.67 *C) compare with the literature value of density (0.785 g/mL) and the boiling point (82.4 *C), which Propanol (Isopropyl alcohol) should be the liquid of M4C. The Propanol (Isopropyl alcohol) has no color. The key of identify the unknown is the boiling point and the density, because if…

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. The purpose of this experiment was to examine the role of attention in the performance of a new motor skill (cup stacking), to determine whether the level of attentional focus on the task impacted performance of the skill. The cup stacking experiment was performed under three different conditions; focused attention, response dual task, and cognitive dual task. Condition one was performed by solely focusing on completion of the task, while condition two, required the participant to respond to…

Back on the date of June 18, 1773 Joseph Priestley was in his science lab exploring and studying about the elements. Priestley had done a lot of experiments to find more about the element now known as oxygen. The first experiment dealt with using the previous methods Carl W. Scheele used. Carl W. Scheele was a chemist from sweden, but in his discovery of oxygen he had other people helping him throughout the process. Joseph had thought in his mind, “ If I can do this scientific inquiry on my own,…