Chem 201 Lab October 21‚ 2011 Lab #6: Preparation of 2-chloro-2-methylbutane – an Sn 1 Reaction Purpose The purpose of this experiment was to prepare an alkyl halide‚ 2-chloro-2-methylbutane by reacting 2-methyl -2-butanol (t-amyl alcohol) with hydrochloric acid. Alkyl halides are of wide interest because they are widespread and have diverse beneficial and detrimental impacts .The overall reaction is given below: Procedure 1 ml of 2-methyl-2-butanol was measured using 1 ml syringe and
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# Now You See It – Copper Cycle Lab The purpose of the lab is to discover what happens when someone executes a series of procedures‚ beginning with copper metal. What is done | What is observed | 1. Started with copper‚ Cu (s). | reddish‚ brownish‚ orange-ish‚ powder-like | 2. Added nitric acid‚ HNO3 (aq). | acid turns blue and smells like chlorine. | 3. Added water‚ H2O (l). | stayed the same | 4. Added sodium hydroxide‚ NaOH (aq). | changed consistency‚ gel-like | 5. Heated the
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Lab Report for Chemical Changes and Conservation of Mass Lab Previous to the reaction‚ the magnesium appeared to be a solid‚ white‚ black‚ and grey substance with many small dark particles within the substance. The hydrochloric acid was a clear liquid that looked like water It weighed 42.2 grams in total. During the reaction‚ the two substances produced bubbles‚ creating smoke and became warm with a smell that is irritating to the human nose. After the reaction‚ it appeared to be a clear‚ bubbly
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Pre Lab Questions 1. What are the basic units of length‚ mass‚ volume‚ and temperature in the SI system? Length= meters (m) Volume= kilograms (kg) Temperature= Kelvin (K) 2. What decimal power do the following abbreviations represent: a) M=10^6 b) K=10^3 c) M=10 ^-3 d) N=10^-9 e) µ=10^-6 3. What is the number of significant figures in each of the following measured quantities? a) 351 g 3 b) 0.0100 mL 4 c) 1.010 mL 4 d) 3.72 x 10^-3 cm 3 4. What is the length of a crystal
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Rate of reaction Design Lab Background: Reaction rate is most commonly defined as the speed at which a reaction takes place. This rate can be altered by many factors such as temperature‚ pressure‚ concentration‚ volume‚ or the use of a catalyst. In order for a reaction to occur‚ the atoms must collide in the correct orientation to break the bonds and must also have more energy than the needed activation energy. If their energy is not high enough‚ the reaction will not be able to take place. By
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Helicopter Lab * Objectives: the objective is to study the effect of variables on the helicopters’ flight. The goal is to observe which can stay in the air for the most time. * List of materials: 3 patterns for a paper helicopter‚ scissors‚ tape ruler‚ and paper clip. * Procedures: 1. Cut the solid lines and fold the dashed ones. Fold A toward you and B from you to form wings. Then fold C and D inward to overlap‚ forming the body. Fold up the bottom on the dashed line and hold it
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Blood Lab Report Introduction A blood experiment was performed testing four different patients blood to find out their specific blood types. Blood types are categorized in four blood groups based upon the antigen ( proteins on the surface of blood cells that can cause a response from the immune system) ("Rh factor" 2006) on the surface of the red blood cell. The blood groups are A‚ B‚ AB and O‚ names which are broken down from the ABO blood group system. Although simulated blood was used
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have a policy of Nondisclosure in an organization? a. It means that certain information can’t be made public under the company’s policy. 4. What Trends were tracked when it came to Malicious Code in 2009 by the Symantec Report researched during this lab? a. Swifi‚ Interrupdate‚ Fostrem‚ Kuaiput‚ Mibling‚ Pilleuz‚ Ergrun‚ Bredolab‚ Changeup‚ Induc 5. What is Phishing? Describe what a typical Phishing attack attempts to accomplish. a. Stealing online account information by posing as a legitimate company
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Acid/Base Titrations Pre- Lab Questions 1. Using your textbook or a handbook‚ look up the formula and structure of potassium hydrogen phthalate (KHP) used to standardize the solution of NaOH in this experiment. Calculate the Molar Mass of KHP. Molar Mass= 204.22 g/mol Formula: KC8H5O4 2. Using your textbook or chemical dictionary‚ write the definition of indicator. Indicator- a substance added at the beginning of the titration that changes color at (or very near) the equivalence
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(heritable) traits in different organisms over time. If you’re thinking apes becoming humans you’re already wrong. There’s even evidence of evolution like fossils‚ DNA samples‚ similarities in bone structure‚ and even vestigial organs. The purpose of this lab is to see how evolution works and whether it is a reliable theory. Hypothesis: If there are 11 skulls that all have different structures 4 of them will be bipedal. Independent variable: Is all the measurements of each skull Dependent
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