Chlorides

observe how magnesium chloride affects the germination process in seeds. In a similar experiment conducted by William Brandenburg and Catherine Kleier (2011) it was determined that small amounts of magnesium chloride (0.01 M) increased and improved germination rates of radish seeds while large amounts (0.1 M) were devastating to both germination and later plant growth. However, in the experiment they conducted, the experimental group was exposed to both the magnesium chloride solution and water.…

Purpose I’m writing to propose ATC purchase an alternative traction device instead of snow chains. The current method of complying with mandatory snow chain laws is to purchase metal snow chains for the drivers to carry through the states and provinces where it is mandatory to have them in the trucks during the winter months. Situation Snow chains are cumbersome, heavy, and are often stolen when left behind for the ETLLC group to retrieve. The approximate weight of a set of snow chains is…

Conclusion The empirical formula of the copper chloride hydrate compound is CuCl2 · 2H2O. Discussion of Theory The technique of gravimetric analysis can be used to find the empirical formula of a compound when the amount of it is known. By dehydrating the copper chloride hydrate sample and using it for an elemental copper-producing chemical reaction, one can isolate the masses of the water, copper, and chloride and determine their mole ratios. Since the Law of Definite Proportions states that a…

To prepare the absorbent, we will be using sodium alginate and calcium carbonate.1Sodium alginate is a common additive to foods, so there are several types. The type we will be using is called sodium;3,4,5,6-tetrahydroxy oxane-2-carboxylate. There are several sources to buy sodium alginate. However, we will buy it from Modernist Pantry, which the sodium alginate concentration has already been prepared. Before the preparation of calcium alginate itself, sodium alginate should be kept in a 39.2…

I. Science fair Question What material will make ice melt fastest? II. Background Research Did you ever wonder what makes ice melt fastest? This research paper is going to talk about how ice melt works. Terms that will be discussed in this paper will include freezing point, Phrases of matter, freezing point depression, and solution. Freezing point is the point when water turns into ice (What Makes Ice Melt Fastest). If you have ever lived in a cold climate, you have most likely have seen…

The purpose of this lab was to determine the formula of copper chloride hydrate by dehydration through heating, rehydration through adding water back in, the reaction of aluminum with the copper chloride hydrate to produce solid copper, and the weight of this copper. To accomplish this, a petri dish was weighed and 1.01 g of copper chloride hydrate was added to the dish. The solid salt crystals were broken up to make sure that all of the hydrate would be heated the same. Next, the petri dish and…

solution, because it is the source of the Grignard reagent. Because the halide cannot be eliminated, the next best option is to minimize the amount of halide in the reaction. In this experiment, a small concentration of the halide is reacted with a high concentration of magnesium to ensure maximum contact between halides and magnesium. To do this, magnesium will be placed in the round bottom flask and then halides are slowly added. Another potential source of error is that Grignard reagents must…

Discussion There were four goals for Project 11: Identification, Properties, and Synthesis of an Unknown Ionic Compound. The first goal was to identify the unknown compound, the second goal was to determine the reactivity of the compound, the third goal was to determine the quantitative solubility of the compound in water, and the fourth goal was to find the percent yield of a product from a reaction involving the unknown compound. Determining the identity of the unknown compound was achieved…

are used to create that said compound and there are many different methods that can be used to help isolate those different components. The purpose of this lab is to utilize gravimetrical analysis to isolate and determine the percent composition of chloride present in an unknown compound. Gravimetrical analysis utilizes precipitation that results in the isolation of specific substance based on the reaction that is used. Once the substance has precipitated it is able to be washed and weighed,…

two-part experiment meant to have us practice our skills and then use those skills in actual data collection and analysis. In part one we used a sample of sodium saccharinate combined with a sample of a metal halide salt, our group used copper(II) chloride. The combination of these two samples allowed for the synthesis of a metal complex. In part two of the experiment we used a procedure similar to part one in order to collect phosphorus out of a sample of fertilizer. This sample was then…