Identification of Hydrates Based on Percent Water Guiding Question What is the identity of the unknown hydrate? c.Compare the experimental and true percent copper for your unknown. Example of a Microbiology Unknown Lab Report by Taylor Autry Introduction. With the given “q” values for all three identiies of the unknowns, one can compare the calculated heat of the reaction to the given value to identify the salt. The flame test yielded a color that matched that of sodium bicarbonate indicating that the unknown compound contained sodium. i. £ Conclusion a.Summarize the major points of your experiment. This method of analysis allows for a quantitative determination of the mass percent of chlorine in the unknown through precipitation of the chloride ions in the form of silver chloride. £ Questions 1. The B. cereus was found using the solution in the Unknown 109 test tube. vP�Y��-��w�������$������ݸ��p�����^U.G����M�~G�QfjK�"�z%�j��L��mF:,D���j_��Q(��C/. This data was confirmed by the boiling point determined in lab which was 68 degrees celsius, and from the GCMS data (refer to Table 2) . Lab Report: £ Title Page £ Summary a.Purpose b.Determine the identity of the unknown copper salt. Download Identification Of Unknown Ketones Lab Report pdf. << /Length 5 0 R /Filter /FlateDecode >> The B. cereus was found using the solution in the Unknown 109 test tube. Get an unknown sample of salt from the instructor. Unknown Lab Report. £ Introduction a.Discuss single replacement reactions. Remove thermometer, add 3.0grams of unknown salt into the calorimeter. Get Help With Your Essay b.Provide the balanced equations for all six copper salts reacting with zinc. c.Compare the experimental and true percent copper for your unknown. The anion test for chloride proved to be positive, resulting in the summation that the unknown compound was sodium chloride. £ Conclusion a.Summarize the major points of your experiment. i. £ Questions 1. c.Compare the experimental and true percent copper for your unknown. Lab Investigation 3 - What is the identity of the unknown hydrate? UNKNOWN REPORTS. Unknown A is m-nitrotoluene). Originally, a sample from the Unknown tube was supposed to be inoculated on a nutrient agar … d.Show all calculations. Final report of the unknowns: report the unknown number, your name, appropriate properties, the results of the solubility tests, the results of the class tests (list the test and whether it was + or - or could not determine), the neutralization equivalent if taken (must be reported for all acids and bases using correct significant figures), all possible compounds within that class and close to that mp or bp (plus or minus … The purpose of this lab is to identify the unknown salts using the change in temperature to calculate heat realeased. In the medical field bacteria and infections of different kinds are the core of the practice. Contact our live support team for any assistance or inquiry. Formula of a sample still looks wet litmus paper by amylase, it in the presence of c.Provide the zinc elimination reaction. Identifying an unknown chloride salt by gravimetric analysis Summary Gravimetric analysis will be performed to identify an unknown chloride salt. In this paper I will discuss the processes of how I came to find my two unknown bacteria. 2. Accurately describe each positive test and include factors such as reaction time, color change, precipitate formation, and the need for heating, stirring, or shaking. Before measuring the temperature, shake the cup to insure the unknown salt reacted/ dissolved completely. The purpose of this lab is to identify the unknown salts using the change in temperature to calculate heat realeased. b.Provide the balanced equations for all six copper salts reacting with zinc. Chemistry in society. b.Provide the balanced equations for all six copper salts reacting with zinc. Identification of Unknown Organic Compounds Introduction The identification and characterization of the structures of unknown substances are an important part of organic chemistry. Reflecting back onto previous labs, what would be another way to identify the unknown copper salt? Flame tests can identify metals present in a sample. reaction of hydrogen with ferric chloride. Lab Report: £ Title Page £ Summary a.Purpose b.Determine the identity of the unknown copper salt. ), the spectra typically must be supplemented with £ Introduction a.Discuss single replacement reactions. c) Determine the oxidizing agent and reducing agent. 2.Consider the following redox reaction: Fe+2 (aq) + Cr2O7-2 (aq)˜ Fe+3(aq) + Cr+3 (aq) a) Determine the oxidation number for each atom. SQA Chemistry. How did you determine the identity of your copper salt? d.Show all calculations. ���@���?T�㢗 'xٟhu��o_R��K���������͚l���9?��h��� ��P� �\���)���/��� =�ҷ9�"�S?�����!‚]�9�F��(Wt�c��ƍ�3����=D 8������'RQ*e��͢��bw=}s�ȂA���QwO��B��oD���H�#�Q�}D]�{{��a�v��8�Q�i�:�0�z:;]�� National 5. Unknown Number 117 Joel Hentrich. laboratory experiment (ALL six parts). Report Sheet: Identification of Unknown Organic Compounds A. Characterizing Known Compounds Carefully record your observations. c) Determine the oxidizing agent and reducing agent. Microbiology. 4 0 obj After collecting the following data and observations, the unknown liquid, #19UL11, was determined to be 2-Butanone. Include a separate entry for the unknown solution's identification number, characteristic temperature, and concentration. b) Balance the equation using half-reactions. Use the order calculator below and get started! Briefly provide a stepbystep procedure for this alternate method. b) Balance the equation using half-reactions. Make sure you include the unknown identification on your report along with the compound name for your unknown (i.e. Reflecting back onto previous labs, what would be another way to identify the unknown copper salt? Determine the temperature and record results. PAG 5 Identify an unknown compound using cation tests, anion tests and flame tests; Scotland. How did you determine the identity of your copper salt? xu�����?��J�f���R+8Q,���a���,�0*L(��J09t�з��^�V@_�xA8;�Ƈx��y�>{4/�5�xe}�������VovJd^{�OB]���o�/�����4���K6�`^�޳y��Y�5��ߑ�[�CΝr�Ќ\�}GŎ|pc�C�C��f��e�',��t��ws�����e>�� Originally, a sample from the Unknown tube was supposed to be inoculated on a nutrient agar … The unknowns chosen were unknown “C” for trials 1 and 2, and unknwon “A” for trials 3 and 4. HC2H3O2 (aq) + OH (aq)˜ H2O (l) + C2H3O2 (aq) Attachments: Lab5Iden.wiz; Lab Report: £ Title Page £ Summary a.Purpose b.Determine the identity of the unknown copper salt. 3. stream April 29 th, 2014. £ Results and Discussion a.Discuss your procedure with the data you collected. £ Introduction a.Discuss single replacement reactions. The correct identification for the gram positive bacterium was Bacillus cereus. Determination of the Identity of an unknown liquid My Name The date My period Partner #1 name Partner #2 name Purpose: The purpose of this lab is to determine the identity of an unknown liquid by measuring its density, melting point, boiling point, and solubility in both water and alcohol, and then Although it is often possible to establish the structure of a compound on the basis of spectra alone (IR, NMR, etc. c.Provide the zinc elimination reaction. You should submit an Unknown Preliminary Report as soon as you have completed the experiments described below:. Spring 2014 INTRODUCTION The purpose of this study was multifaceted: First, it was completed in order to gain a better understanding of how to utilize microbiological techniques learned within the classroom and laboratory environment. 2-Butanone is a ketone with a boiling point of 80 degrees Celsius, and a molecular weight of 72.11 g/mol. Let the salt dissolve and determine the temperature, by placing the thermometer through the top of the third cup. The initial temperature was … 2.Consider the following redox reaction: Fe+2 (aq) + Cr2O7-2 (aq)˜ Fe+3(aq) + Cr+3 (aq) a) Determine the oxidation number for each atom.

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