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LSU | CHEM 1212
GENERAL CHEM LAB
Professors
- Allen L,
- Kolniak,
- Fulfer,
- Lab Ta,
- Wang,
- Allen
41 sample documents related to CHEM 1212
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LSU CHEM 1212
Cheyenne Roohani Chem 1212 Sect. 3 Yonathan Merid Lab Partners: Christine Palma, Jenna Rhoads Physical and Chemical Properties Purpose: To determine physical and chemical properties of liquids by determining their density, solubility and miscibility. Proc -
LSU CHEM 1212
Cheyenne Roohani Chem 1212 Section 3 Yonathan Merid Lab Partners: Christine Palma, Jenna Rhoads Synthesis of Potassium Alum Purpose: Using basic stoichiometry and tare weighing techniques along with gravity and suction filtration to synthesize Potassium A -
LSU CHEM 1212
Cheyenne Roohani Chem 1212 Section 3 Yonathan Merid Lab Partners: Christine Palma, Jenna Rhoads Classifying Reactions in the Copper Cycle Purpose: To do several reactions in which the products of the first reaction are the reactants of the next and ultima -
LSU CHEM 1212
Cheyenne Roohani Chem 1212 Section 3 Yonathan Merid Lab Partners: Christine Palma, Jenna Rhoads Vitamin C in Fruit Juices Purpose: To determine the molarity of an unstable substance and use the molarity to determine the vitamin C concentration in fruit ju -
LSU CHEM 1212
Cheyenne Roohani Chem 1212 Section 3 Yonathan Merid Lab Partners: Christine Palma, Jenna Rhoads Limiting Reagent Determination Purpose: To determine the limiting reagent in an experiment by evaluating the final products of that experiment. Procedure: The -
LSU CHEM 1212
Cheyenne Roohani Chem 1212 Section 3 Yonathan Merid Lab Partners: Christine Palma, Jenna Rhoads Determining % of Composition of H2O2 Purpose: Using yeast to react with H2O2 to determine the percent composition of a hydrogen peroxide. Procedure: The proced -
LSU CHEM 1212
Cheyenne Roohani Chem 1212 Section 3 Yonathan Merid Experiment 12 Lab Partners: Christine Palma, Jenna Rhoads Qualitative Inorganic Analysis: Groups 1 and 2 Known Purpose: To use groups 1 and 2 cations and undergo a series of reactions to later determine -
LSU CHEM 1212
Cheyenne Roohani Chem 1212 Section 3 Yonathan Merid Experiment 13 Lab Partners: Christine Palma, Jenna Rhoads, Julie Pecquet Qualitative Inorganic Analysis: Groups 1 and 2 Unknown Purpose: To use previous experiments and known results to determine the pre -
LSU CHEM 1212
Cheyenne Roohani Chem 1212 Section 3 Yonathan Merid Experiment 14 Lab Partners: Christine Palma, Jenna Rhoads, Julie Pecquet Qualitative Inorganic Analysis: Group 3 Known Purpose: To use group 3 cations and undergo a series of reactions to later determine -
LSU CHEM 1212
Cheyenne Roohani Chem 1212 Section 3 Yonathan Merid Experiment 15 Lab Partners: Christine Palma, Jenna Rhoads, Julie Pecquet Qualitative Inorganic Analysis: Group 3 Unknown Purpose: To use previous experiments and known results to determine the presence o -
LSU CHEM 1212
Cheyenne Roohani Chem 1212 Section 3 Yonathan Merid Experiment 16 Lab Partners: Christine Palma, Jenna Rhoads, Julie Pecquet Determination of Specific Heat and Various Heats of Reactions Purpose: Use boiling water to determine the specific heat of aluminu -
LSU CHEM 1212
Cheyenne Roohani Chem 1212 Section 3 Yonathan Merid Experiment 17 Lab Partners: Christine Palma, Jenna Rhoads, Julie Pecquet Chemical Equilibria Purpose: To examine chemical reactions and determine the effects of Le Chatliers principle. Procedure: The pro -
LSU CHEM 1212
Cheyenne Roohani Chem 1212 Section 3 Yonathan Merid Experiment 18 Lab Partners: Christine Palma, Jenna Rhoads, Julie Pecquet Rates of Reaction Purpose: Change the concentration of reactants and observe the difference in the rate of reaction. Procedure: Th -
LSU CHEM 1212
Cheyenne Roohani Chem 1212 Section 3 Yonathan Merid Experiment 19 Lab Partners: Christine Palma, Jenna Rhoads, Julie Pecquet Various Reduction-Oxidation Reactions Purpose: To examine a redox reaction and determine the species being reduced and oxidized as -
LSU CHEM 1212
Cheyenne Roohani Chem 1212 Section 3 Yonathan Merid Experiment 20 Lab Partners: Christine Palma, Jenna Rhoads, Julie Pecquet Synthesis and Purification of Coordination Compound Purpose: To make and purify potassium trisoxalatoferrate(III) trihydrate K3[Fe -
LSU CHEM 1212
Cheyenne Roohani Chem 1212 Section 3 Yonathan Merid Lab Partners: Christine Palma, Jenna Rhoads Identifying Food Dyes by Paper Chromatography Purpose: To use paper chromatography technique to determine the type of dye in unknown substances and different f -
LSU CHEM 1212
Cheyenne Roohani Chem 1212 Section 3 Yonathan Merid Lab Partners: Christine Palma, Jenna Rhoads, Julie Pecquet Investigating Acidic, Basic, and pH Properties Purpose: To determine the pH of different household substances using multiple tests to achieve a -
LSU CHEM 1212
FINALEXAMREVIEW SafetyintheLaboratory 04/05/201013:14:00 DoNOTeatordrinkanythinginthelab/fingersinyourmouthbecausetoxic chemicalsareharmfulifingested Contactwithcorrosivechemicalsdestroyslivingtissue;ALWAYSwear goggles/labapronandimmediatelywashskin MAN -
LSU CHEM 1212
ChemistryLab1212Midterm Experiment1 07/03/201011:29:00 Solubility o Chemicalproperty o Theabilityofasolidorgastodissolveinaliquid o Solutionthatdoesthedissolvingisthesolvent o Substancebeingdissolvedisthesolute Density o Physicalproperty o Masstovolumerat -
LSU CHEM 1212
Experiment 1 Solubility- ability of a solid or gas to dissolve in a liquid Solvent- solution doing the dissolving Solute- substance being dissolved Miscible- when two liquids can completely mix together with each other Immiscible- when two layers form Den -
LSU CHEM 1212
Physical and Chemical Properties Physical Properties: Attributes and characteristics that describe what the chemical species is. o Examples: color, melting point, density Chemical Properties: Attributes and characteristics that depend on how a chemical -
LSU CHEM 1212
Synthesis of Potassium Alum Alums are a class of double salts with the formula of MAl(SO4)212 H2O. M = alkali metal cation (Group 1A or +1 cation. The alum available in grocery stores is potassium alum, KAl(SO4)212 H2O, potassium aluminum sulfate dodecah -
LSU CHEM 1212
The Copper Cycle In this series of reactions, you will start with Cu(s) and then end with Cu(s). In theory, the final amount of Cu should be the same as the initial amount of Cu. The reactions involved in this cycle allow us to look at the different class -
LSU CHEM 1212
Citric Acid inFruit Juices Background A titration is a technique to determine how much analyte (species being analyzed) is present in a sample. This done by reacting the analyte with a known amount of titrant (species added in small increments by a buret -
LSU CHEM 1212
Vitamin C in Fruit Juices This titration uses a reaction specific to the Vitamin C (ascorbic acid). This reaction will be used to determine how much juice is needed to satisfy the Daily Recommended Intake (DRI) of Vitamin C for adults. PART I: Find Molari -
LSU CHEM 1212
Gas Law Stoichiometry Background Oxygen gas (O2) will be generated by the enzyme catalyzed decomposition of H2O2. Using the Daltons Law, the Partial Pressure of O2 is calculated. The pressure, volume, and temperature of O2 generated will be measured and u -
LSU CHEM 1212
Paper Chromatography Background Chromatography is an analytical method to separate components of a mixture. In Paper Chromatography, the paper is the stationary phase or support. The solvent is the mobile phase, which carries the components of the sampl -
LSU CHEM 1212
Determination of Aspirin Background The intensity of the color of a solution is directly proportional to the concentration of the colored species in the solution. In a spectrophotometer, light shines through a sample solution and a detector measures the -
LSU CHEM 1212
Melting Points of Antifreeze Colligative Properties Colligative properties are properties of a solution which depend on the concentration of solute dissolved in the solvent. The freezing point of a solution is LOWER than the freezing point of the pure s -
LSU CHEM 1212
Estimating pH Acids donate protons. In H2O, the proton is donated to H2O, producing the hydronium ion. HX + H2O H3O+ + X Acidic solutions have high concentrations of H+ (or H3O+) and low concentrations of OH. Bases accept protons. In H2O, the proton is -
LSU CHEM 1212
Qualitative Analysis Qualitative Inorganic Analysis is the process of determining which metal cations are present in a known or unknown solution. Students work individually through this series of experiments. Basic terms Precipitate: A solid formed as a r -
LSU CHEM 1212
Qual Groups 1 2 procedure, substituting your unknown solution for the known cation mixture in Step 1A1. Carefully record -
LSU CHEM 1212
Qual Group 3 Known Group 3 Flowchart Fe3+(aq), Ni2+(aq), Mn2+(aq), Zn2+(aq), Cr3+(aq) 3A 6 M NaOH Fe(OH)3(s), Ni(OH)2(s), Mn(OH)2(s) [Zn(OH)4]2(aq), [Cr(OH)4](aq) 3C 6 M HNO3 3B H2O2 Fe3+(aq), Ni2+(aq), Mn2+(aq) [Zn(OH)4]2(aq), CrO42(aq) 3D KSCN 3G NaBiO3 -
LSU CHEM 1212
Qual Group 3 Unknown Group 3 Flowchart Fe3+(aq), Ni2+(aq), Mn2+(aq), Zn2+(aq), Cr3+(aq) 3A 6 M NaOH Fe(OH)3(s), Ni(OH)2(s), Mn(OH)2(s) [Zn(OH)4]2(aq), [Cr(OH)4](aq) 3C 6 M HNO3 3B H2O2 Fe3+(aq), Ni2+(aq), Mn2+(aq) [Zn(OH)4]2(aq), CrO42(aq) 3D KSCN 3G NaBi -
LSU CHEM 1212
Determination of Specific Heat and Various Heats of Reactions Background A calorimeter is used to measure the heat exchanged in a chemical or physical change. Since the measurements are made at atmospheric conditions, heat (q) equals the enthalpy change -
LSU CHEM 1212
Chemical Equilibrium Not all reactions go to completion or use up all of the reactants. Some instead reach a balance or equilibrium. At equilibrium, the forward rate of reaction (Reactants forming Products) equals the reverse rate of reaction (Products f -
LSU CHEM 1212
Kinetics: The Clock Experiment Background Kinetics is the study of reaction rates. Rate is how fast a reaction occurs, the change in concentration per change in time. Rate = () [Reactant] / time Rate constant equation or rate law shows the relationship b -
LSU CHEM 1212
Various Reduction-Oxidation Reactions Reduction-Oxidation (redox) reactions involve the transfer of e from one species to another. The REDUCED species gains electrons (or reduces its oxidation number). Cu+2(aq) + 2 e Cu(s) +2 (ox. #) 0 (ox. #) The OXIDIZ -
LSU CHEM 1212
Synthesis&Purificationof CoordinationCompound Acoordinationcompoundisachemicalspeciesthat containsametalcationboundtoligands. Typicallythecationisboundin46placesto formcoordinationnumbers4(tetrahedral),5 (trigonalbipyrimidal)or6(octahedral). Aligandisanio -
LSU CHEM 1212
Calories from Fat in Peanuts and other Nuts Background Food scientists measure the energy produced by food combustion in kilocalories. The Calories found on food labels are actually kilocalories, abbreviated Cal. 1000 calories = 1 kcal = 1 Cal Peanuts an -
LSU CHEM 1212
6753_Klein_00.qxd 5/1/07 5:02 PM Page ii 6753_Klein_00.qxd 5/1/07 5:02 PM Page i 6753_Klein_00.qxd 5/1/07 5:02 PM Page ii 6753_Klein_00.qxd 5/15/07 2:14 PM Page iii ORGANIC CHEMISTRY I AS A SECOND LANGUAGE Second Edition DR. DAVID R. KLEIN Johns Hopkins U
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