Unknown Salt Synthesis Essay

When dealing with glass objects such as a glass beaker or thermometer, be sure to hold the item. In instances where glass is broken during the experiment, do not clean up the area yourself! Notify your instructor immediately.

either barium (Ba 2+ ) or calcium (Ca 2+ ). Part C consisted of a series of cation flame tests using metal

In reference to the analysis of anions, Table 1 shows that a precipitate was formed when our unknown was combined with HNO3 and AgNO3, thus indicating the presence of a chloride ion. Because our unknown did not form a precipitate due to HCl and BaCl2, separate, effervesce, or smell, we concluded that neither sulfate, nitrate, carbonate nor

The 1954 film Salt of the Earth directed by Herbert J. Biberman, is set in New Mexico and is about the Hispanic miners working for Delaware Zinc, a mining company, and the plot of the movie is about how the miners go on strike till they are treated equally the same as the other non-Hispanic miners. The miners’ strike goes on for months and the company decides to hold out on the workers by scaring the old workers with new miners to take their jobs, and during that time the wives of the miners decided to take it upon themselves to put themselves on the frontlines with the men because the women are also fighting for something else sanitation. News gets out about the strike and many supporters send letters with money

World War Two resulted in a chaotic destruction that overwhelmed Europe. These feelings of dismay are concisely summarized in Ruta Sepetys’ Salt of the Sea.. An impactful quote states, “war had bled color from everything, leaving nothing but a storm of gray.” The war in 1945 had drained any and all feelings of hope and spirit out of European people. In it’s wake, the war left a cloud of devastation and despair. Florian and Joana have to overcome this war, their fate, and guilt in order to return to their past selves and survive their journey in a German and Russian warzone.

Based the data collected, the identity of the unknown #42 is lithium chloride. Because the unknown compound produced a bright red pinkish flame, shown in Table 1, the possible cations based on the CRC Handbook were lithium or strontium 1.The known 1M lithium chloride also produced the same colored flame as the unknown, suggesting that the unknown compound has lithium. Since lithium produces no precipitate with the compounds in Table 2 and strontium produces a precipitate with the same compounds, the observations in Table 2 indicate that the unknown’s cation is lithium 4. Using the solubility table, process of elimination, and the results in Table 3 the possible anions for the unknown compound were chloride and bromide4. The production of precipitate

Eleven mystery test tubes labeled from K-1 to K-11 contained: 6M H2SO4, 6M NH3, 6M HCl, 6M NaOH, 1M NaCl, 1M Fe(NO3)3, 1M NiSO4, 1M AgNO3, 1M KSCN, 1M Ba(NO3)2, 1M Cu(NO3)2 respectively. The contents of the test tubes were determined by chemical experiments. Solution K-1 contained NiSO4 because when solution K-9, ammonia which was identified by its pungent odor, was added, an inky dark blue color was made. Iron (Fe (NO3)3) was determined to be in test tube K-2. KSCN was found in test tube K-11 since Fe (NO3)3 and KSCN makes a bloody color when mixed together. Flame tests were conducted in which K-8

The purpose of this experiment was to find the amount and percent of water in a hydrated salt. Hydrated salt contains water molecules chemically bound to it while anhydrous salt is a substance that fire can readily remove the water molecules. Using the gravimetric analysis method, the sample salt was measured, heated, and was measured again after cooled down to room temperature; this procedure allowed the weight of water lost in the salt to be obtained. After two trials, the water in the salt was determined to have an average percent water of -35.04%. The null hypothesis, the heat will not affect the amount of water lost, was rejected ,however, the alternative hypothesis, the heat will allow for there to be water lost, was not supported.

The first part of the Identification and Synthesis of an Unknown Ionic Compound (Project 3 Week 1) experiment was to determine the unknown compound #202 that is given to the experimenter. The second part to the experiment (Project 3 Week 2) was to discover different tests the experimenter can conduct in order to prove that they have the specific ionic compound that they discovered in part one. Some of the ways that the experimenter can determine the unknown compound #202 they have includes, preliminary tests, physical state tests, solubility testing, analysis of anions, analysis of cations and flame tests (Dealing with Unknown Compound). There are many ways an experimenter can determine the ionic compound that they have, including pH tests, flammability tests (liquids and solids), solubility tests and heavy metal tests, just to name a few (Identifying Unknown Chemicals in Science Labs).

“Salt, A World History,” is an extensive aspect of world history by Earth’s one edible rock - salt. The book begins at the start of recorded history, and highlights humanity’s dependence on salt, up to roughly present day times. It focuses on the effect salt had on, and its contributions to, humankind. The book details how salt affected, economics, religion, science, and culinary practices all over the world.

The main objective of this experiment is to carry out qualitative analysis to identify metal cations in unknown solution 1.

The cations in both the known and unknown samples were identified by using qualitative analysis, of which were determined to be acidic, basic, or neutral by using litmus paper. Acid-base reactions, oxidation-reduction reactions, and the formation of complex ions are often used in a systematic way for either separating ions or for determining the presence of specific ions. When white precipitate formed after adding hydroxide, aluminum ion was determined to be present in the solution. However, nickel was determined to test positive when the solution changed to a hot pink color after adding a few drops of dimethylglyoxime reagent and iron was present when the solution was a reddish brown color when sodium hydroxide was added to the mixture at the very beginning of the experiment. Qualitative analysis determines that ions will undergo specific chemical reactions with certain reagents to yield observable products to detect the presence of specific ions in an aqueous solution where precipitation reactions play a major role. The qualitative analysis of ions in a mixture must add reagents that exploit the more general properties of ions to separate major groups of ions, separate major groups into subgroups with reactions that will distinguish less general properties, and add reagents that will specifically confirm the presence of individual

A study of limiting salt consumption leads to lowering blood pressure of patients with kidney disease. People in America unconsciously intakes an enormous amount of salt every day. Consuming an excessive amount of salt is consistently associated with risk of heart diseases, and worsening kidney function. Thus, individuals should intake less sodium each day.

On the 4th of July 2015, Matt Stone won Nathan 's Coney Island hot dog eating contest by eating 62 hot dogs and buns n 10 minutes. Those 34 hotdogs (not counting the buns) contained 25,358 mg of sodium. How many g of sodium did he eat? How many ng of sodium did he eat? (4)

The worst thing a parent can experience is when your own child commits a crime. Should parents forgive their own flesh and blood no matter what, and if so, what is unforgiveable? In what way can religion help the parent to forgive such a crime as rape or is it even possible? These dilemmas are mentioned in the short story “Spilled Salt”, written by Barbara Neely, published in 1990.