CPR (MATH13- B10) Members: C06 Wrenbria Ngo C07 Julie – Ann Parañal C08 Dani Patalinghog C09 Marino Penuliar C10 Michael Sadsad CPR (MATH13- B10) Members: C06 Wrenbria Ngo C07 Julie – Ann Parañal C08 Dani Patalinghog C09 Marino Penuliar C10 Michael Sadsad Prof. Charity Hope
Investigating the Determining Characteristics of Cations and Anions Chem 111 Sec 560 Introduction: The purpose of this lab was to study the specific characteristics of cations and anions, and ultimately to be able to identify an unknown substance based on our studies and tests using the logic trees developed through the experiment. A logic tree is a graphical display of the findings from this lab which, through a series of yes/no questions, elimination
AP Chemistry 12/13/11 Round-Trip Copper Reactions Lab The purpose of this lab was to evaluate our skills of decanting a supernatant liquid without losing the solid and successful completion of a series of reactions. This was done through five chemical reactions involving copper. In this lab, elemental copper was put through five different chemical reactions in order to convert it into different compounds. By the end of the fifth reaction, the copper was back to its elemental state. In the
acetanilide containing two impurities. Recrystallization is a very common method that is used to purify solids. This process dissolves a crude solid with impurities in a mildly boiling solvent, and cooling down the mixture afterwards for crystals to reconstruct themselves in solution. This method allows impurities to separate and remain in solution as precipitate or remain uniform in solution. Solids are more soluble in hot solvents than in cold ones, allowing maximum dissolution for proper separation
Overall this experiment was successful, as it was possible to determine which unknown salt solution the cation belonged too, and also the pairing anion. To figure out the cations, many tests and observations were needed to be made. With the gathered flame test results, and the information given in the procedure, conclusions could be made. Solution A is Sr2+ since it tested crimson red. Solution C is Ba2+ because it tested green. Solution D is Li+ because it turned the flame carmine red. Finally,
The purpose of this experiment was to apply the understanding of basic solubility principles and precipitation reactions to identify two unknown cations in a given solution. The first two processes involved adding various acids and basis to the unknown solution to observe different precipitation reactions. The unknown solution contained either silver or lead and either barium or calcium. For unknown solution one, adding a sample of hydrochloric acid to the unknown solution started the experiment
the ability to fabricate and process nanomaterials and nanostructures is the first corner stone in nanotechnology. There exist a number of methods to synthesize the nanomaterials, which are categorized in two techniques “top down and bottom up”. Solid state route, ball milling comes in the category of top down approach, while wet chemical routes like sol-gel, co-precipitation, etc. come in the category of bottom up approach. Secondly, characterization of nanomaterials is necessary to analyze their
product is the start of any experiment. Obtaining this information plays a key role in choosing solvents for processes such a recrystallization. Recrystallization is a procedure for purifying an impure compound in a solvent. It is used only to purify solids in large or small quantities. That is the purpose of this experiment. The product being used for this experiment is acetanilide (C6H5NH). The goal is to purify and recrystallize the organic compound in the appropriate solvent. Acetanilide was first
IntroductionThe complex and interesting optical properties can be shown clearly on Nanostructured metals the collective oscillations of the conduction electrons termed plasmons lead to most striking phenomenon encountered in these structures are resonances . Plasmon modes number of geometries and in various metals ? most importantly in noble metals such as gold, copper and silver. Under certain circumstances are excited by light, which leads to strong light scattering and absorption and an enhancement
This experiment explored the multi-step synthesis of synthesis acetylsalicylic acid commonly known as aspirin. A common procedure used in organic chemistry labs is multi step synthesis. this procedure involves a cascade of reactions that ultimately lead to a desire product. The series of reactions begins with commonly found or readily available reagents which are synthesized into products which can be used for a secondary reaction, and so on and so forth until the final desired product is synthesized