Mixed Gases Lab Report

6-3: This process is used by cells to manufacture _biochemical energy from nutrients into adenosine triphosphate (ATP), and then release waste products__

For example, in the experiment when I poured Hydrochloric acid in a test tube and then one magnesium ribbon, the substances started to bubble. Other than that, when I took the wooden split and lit it, I burned the green paper and it changed brown around the edges of the paper.

Change in color once chemicals were combined (experiments b,c,d,e,f,g,h,j,l); Precipitate formation (experiments g,j,l), and formation of gas bubbles (experiment a).

Identifying the three components of the unknown mixture, a 1.5 g sample was obtained and dissolved in 30 mL of diethyl ether. This solution was then poured into a separatory funnel with a funnel with the stopcock closed, and inverted twice so that there would be a formation of different layers in the mixture. In order to extract the base from the mixture, approximately 14 mL of 10% hydrochloric acid was added into the funnel and mixed. To mix the hydrochloric acid thoroughly the funnel was gently shaken with the pressure released by removing the stopper intermittently. The solution then separated into an aqueous layer at the bottom, and an organic layer at the top (containing the acid).1 The aqueous layer (containing the base) was released into an

The objective of this lab experiment is to measure the material in the gas phase and to see how the ideal gas experiment could apply to the physical. In this the material we used was, a sip-lock plastic bag, a large plastic beaker, thermometry, dry ice, water, and butane lighter.

Objective In this combinatorial experiment, an acid and alcohol were used as reactants in order to produce esters. In order to determine the acid and alcohol used in the reaction, gas chromatography and the smell of the esters formed were used to determine the acid and alcohol. Raw Data Experiment 1 (CA1 with 2 alcohols) and Experiment 2 (CA2 with 2 Alcohols) were performed in this lab. Table 1: Physical Observations of Products Formed in Each Experiment Experiment Number Product Forms Physical Observations 1 2 Smell of cinnamon 2 2 Smell of artificial fruit/candy 3 2 Smell of strawberries 4 2

Aquatic organisms use oxygen just like terrestrial organisms. The oxygen percentage of the atmosphere is approximately 20%. The oxygen percentage of water is much lower, at 1%. Many factors affect how oxygen and other gases dissolve in water. The purpose of the experiment was to discover if temperature is a factor for gases dissolving in water. In a beaker, 225mL of water was filled at varying temperatures between 0 degrees Celsius and 65 degrees Celsius. Three 12cc capacity syringes were filled with 7cc of Diet Mountain Dew, the syringes were then pointed upward, pressed of excess carbon dioxide leaving 5cc of seltzer, capped, and plunged into the water. A stopwatch was then used to time for three minutes, after which the syringes were removed

One discrepancy that has to be explained would be for Part F(Chemical Reactivity Of Some Representative Elements), question 3 is we failed to obtain a result because time ran out before we could complete the experiment. However, based on my research, the calcium hydroxide salt would be more soluble than the magnesium hydroxide salt because the calcium is more reactive than magnesium. This is because calcium has 20 electrons thus, an electronic configuration of 2.8.8.2. However, magnesium has 12 electrons thus, an electronic configuration of 2.8.2 . In other words, calcium has four electron shells but magnesium has three making it easier for calcium to lose an electron as the distance between the nucleus and the electrons in calcium is further

Introduction Chemical reactions occur all around us, even in us. Millions of reactions occur in our bodies every day, let alone outside of out bodies (ChemHealthWeb.gov, 2015). Human bodies create energy by using glucose in a series of chemical reactions to release energy. This is called respiration and it occurs in all living cells. Some chemical reactions are visible such as oxidation.

The Earth absorbs solar energy and most of this energy is later released as heat, or IR radiation.

Thank you Kiyana, this class has shed some light on my ignorance, because I never stop to think how we get the gas and electricity that powers our world I just flip a switch and pay the bill every month or just go to the gas station and put gas in my truck, this is why learning is such a powerful tool it allows us to be an active participant in the world we live in and make conscious decision concerning some of he things we usually take for granted. I just thought that there was an endless supply of oil being manufacture somewhere in the middle east and all we had to do was buy it and have it shipped to us whenever we needed

In the lab, we purposed to identify ions and separate them, so that we perform individual test to analysis their groups. We performed two trial in this experiment. In the first trial, we used the identification of cations. To do that, we followed careful procedure and used proper regnant for this type of ions.

During this lab, the main focus was on making accurate and precise metric, and pH measurements. The pH of a solution is a measure of the molar concentration of hydrogen ions in the solution and as such is a measure of the acidity or basicity of the solution. A buffer is a solution that can resist pH change when adding acidic or basic components. The main function of buffer is to neutralize small amounts of added acid or base, which maintains the pH of the solution relatively stable. It has the ability to resist pH change because the acid and base that are presented in appreciable amounts at equilibrium and are able to neutralize small amounts of other acids and bases when added to the solution. Sodium chloride is a compound formed from the

In a practical sense, this is a useful way of converting the maximum possible amount of B into C and D; this is advantageous if, for example, B is a relatively expensive material whereas A is cheap and plentiful.

Overall, the experiment succeeded that the metals show the theoretical properties. Differences existed in the mathematical calculation of the actual length. These differences, however, it can be accounted for by experimental error; more over there are uncertainty on purity of the