Group Synthesis Lab Report

The empirical formula for silver oxide for trial one is Ag5O4 and for trial two is Ag3O2. For trial one there is 0.451 grams of silver were produced from 0.504 grams of silver oxide. For trial two there is 0.456 grams of silver were produced from 0.500 grams of silver oxide. The difference between the mass of silver oxide and mass of silver is the mass of oxygen that vaporized into the air. There are 0.053 grams of oxygen vaporized into the air for trial one and 0.456 grams’ oxygen for trial two.

The Cu Later lab experiment is designed to allow you to practice lab skills in implementing and performing a series of reactions. Specifically, four types of chemical reactions will occur: oxidation/reduction; double replacement; single replacement; and decomposition. You will begin with a known amount of copper metal, which, after progressing through several steps, is reproduced. In this experiment you will observe and record the various changes such as heat, color changes, and production that occur. This procedure is used to observe some chemical reactions of copper and its compounds while also performing the lab appropriately as to retain the copper as much as

The two essays that I choose for the synthesis essay are Parkinson’s Alley by Joy Horowitz and The Environmental Issue from Hell: Global Warming Is the Great Moral Crisis of Our Time by Bill Mckibben. Parkinson’s Alley is about residents in California’s Central Valley town of Visalia who have been diagnosed with Parkinson’s. This part of California has the highest number of people diagnosed with the neurodegenerative disease. The pesticides that are used in the surrounding farms seeps into the water that the residents use every day, causing them to get the disease. The Environmental Issue from Hell: Global Warming Is the Great Moral Crisis of Our Time is about how global warming is a moral crisis that, if not combated

-If the copper metal is submerged in the silver nitrate solution then in reaction, a pure, solid (Ag) silver product is created with an excess of (Cu (NO3)2) copper (II) aqueous liquid because a single displacement reaction occurs where the balance equation is then

Humans are born to be social. Their is humongous value for one to belong in a group with people of similar interests because these people will improve upon one's ideas and integrate them into their group and make that one person more valuable to the group. Martin Luther King, Hitler, and Barrack Obama all show how groups bring one more value.

After putting the CH2Cl2 to a beaker containing the drying agent anhydrous sodium sulfate, a sticky white solid was recovered.

The copper (II) chloride was weighed on the scale and recorded. Then beaker was filled with the CuCl and with the proper amount of distilled water. The reactants were then stirred until crystals were dissolved. The wire was removed of any impurities. The weight of the wire was recorded. The wire was wrapped around a pencil to form into a spiral shape. Place wire into solution and leave overnight. The wire was taken carefully from the original beaker to a clean beaker. The wire was gently shook over the beaker then lightly rinsed with water. Once the aluminium was clean, the weight was recorded. Water from the beaker was decanted twice to rinse the copper. The beaker was heated on the hot plate to remove excess water and isolate the copper

You test the procedure by dissolving 10.00 g of ore in an aqueous acidic solution and diluting the solution with water, so that the final volume is 1.0 L. To the solution of dissolved ore, 1.0 L of a 0.025 M NaCl solution is added, to precipitate silver chloride. The mixture is then filtered and the solid washed with 1.0 L of water.

(Co, Fe) doped (La, Ca) based chromites - (La0.8Ca0.2)(Cr0.9-xCo0.1Fex)O3 The transition metal doped perovskite compound, (La0.8Ca0.2) (Cr0.9-xCo0.1Fex) O3 (x=0.03, 0.06, 0.09, 0.12) was synthesized by mixing the powders of lanthanum oxide (La2O3, 99.99%), chromium oxide (Cr2O3, 99.99%), cobalt oxide (Co3O4, 99.99%), ferric oxide (Fe2O3, 99.99%) and calcium carbonate (CaCO¬3, 99.99%) in stoichiometric ratio according to the following equation. 0.4La2O3 + 0.2CaCO3 + ((0.9-x))/2Cr2O3 + 0.1/3Co3O4 + x/2Fe2O3 → (La0.8Ca0.2)(Cr0.9-xCo0.1Fex)O3 +CO2

Purpose: The purpose of this lab is to determine the static electricity of an object by using a simplified version of an electroscope, which will measure the amount of electricity within a object, such as a glass rod, wool and an ebonite rod. Comparing both charges of induction and conduction charges will indicate the charge of an object.

If there is NaCl^ left on the original beaker, funnel or rod, AgNO_3 will react with NaCl, produce AgCl^ precipitation and turn the solution cloudy. If, however, all of the NaCl solution is transferred to the flask, there will be no phenomenon since AgNO_3 solution is has no color. It is important to be familiar with quantitative transferring since when only a small amount of solution is needed, only a limited amount of water can be used to rinse the equipment which leaves students only a few attempts. In addition, electric balances and volumetric glassware ensures the relative accuracy of the mass of 2.2091 g NaCl and the volumes of the 25 mL and 250 mL

The action the group initiates towards the individual and the individual’s responses to this action. Society’s efforts and acculturation to refer to the individual’s efforts. To the individual, socialization and acculturation (learning of a culture) are important prerequisites for getting access to whatever society has to offer.

Comparing the new solution with the original solution , we notice that this one unit gram change of fat in lollipop changes the solution a lot. Remind that the data in the nutrition label of foods sold in market is rounded to the nearest integer. According to the experiment of change the smallest gram values by one unit, rounding the gram values to the nearest integer will changes the solution a lot, thus the number of grams reported on the nutrition label is not significant.

In order to verify the validity of the correlation between the concepts derived from the factor analysis, correlation analysis was conducted. As shown in Table.16, the correlation between Pearson’s correlation coefficients was significant at p <0.05, as well as the relations between concepts were positive (+). Thus, all the variables have a meaningful relationship. Furthermore, it is found that the relationship of all measured variables is consistent with the relationship between the concepts presented in the research model and hypotheses. Consequently, it can be concluded that the direction of the relationship between the variables presented in the research model and the set hypotheses is in agreement with each

Skateboarding means different things to different people. It’s a life style, an art form, a sport, a career, a hobby, a mode of transport, a kid’s pastime, a form of rebellion, a booming industry, a form of expression, family entertainment, a healthy form of exercise, a dangerous activity, and an addiction, but also a culture, an identity, an education, and even a religion to faithful follower s. But the dangerous part of skating stops many people from skateboarding. Injury also has been a common issue since skateboard was created. I summarized three articles that include statistics of skateboarding injuries and express different views from their own perspectives on this issue.