Marker White Vinegar Hydrogen peroxide Measuring spoons Straw Tissue paper Baking soda Test tubes 24 Well Plate Pipet Stoppers for the test tube Chemicals provided by Labpaq Procedure: Place a piece of mossy zinc in the test tube that contains diluted HCl. Cap the tube with the stopper that has the gas delivery tube through the center of it. Stand it up straight in the well plate‚ using the tissue paper if necessary Fill
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environmental and ecological effects due to its toxicity. For the fifth and final step of the cycle‚ 0.3004 grams of zinc is used to react with copper sulfate‚ generating zinc sulfate and solid copper. The balanced equation includes CuSO4(aq) + Zn(s) -> Cu(s) + ZnSO4(aq). Since zinc replaced copper in the sulfate compound‚ this indicates a single replacement reaction. Additionally‚ zinc is oxidized by becoming Zn2+
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Phenol‚ also known as carbolic acid‚ is an aromatic organic compound with the molecular formula C6H5OH. It is a white crystalline solid that is volatile. The molecule consists of a phenyl group (-C6H5) bonded to a hydroxyl group (-OH). It is mildly acidic‚ but requires careful handling due to its propensity to cause chemical burns. Phenol was first extracted from coal tar‚ but today is produced on a large scale (about 7 billion kg/year) from petroleum. It is an important industrial commodity as a
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® Copying is permitted according to the Site Licence Conditions only keep it simple science Preliminary Chemistry Topic 2 METALS What is this topic about? To keep it as simple as possible‚ (K.I.S.S.) this topic involves the study of: 1. OUR USE of METALS 2. CHEMICAL ACTIVITY of the METALS 3. PATTERNS of the PERIODIC TABLE 4. QUANTITY CALCULATIONS... the MOLE 5. METALS from their ORES ...all in the context of how Chemistry contributes to cultural development but first‚ an introduction
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ions in water - acids – sour‚ turn blue litmus to red (pink)‚ conduct electricity - bases – bitter‚ soapy taste‚ slippery‚ conduct electricity‚ turn red litmus to blue Bronsted – Lowry Theory: - acids – donate proton‚ bases accept proton - ex: HCl donates proton to water ( not reversible ) - ex: water donates proton to ammonia – reversible - Amphoteric substances: ____________________________________________________________ - Advantage of B-L definition: - 1. reactions can be identified as
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following is: ( 1 mark ) (a) CH3O- (b) C6H5O- (c) (CH3)2CHO- (d) (CH3)3CO- (Q.11) The correct order of decreasing dipole moment is: ( 1 mark ) (a) CH3Cl‚ CH3Br‚ CH3F (b) CH3Cl‚ CH3F‚ CH3Br (c) CH3Br‚ CH3Cl‚ CH3F (d) CH3Br‚ CH3F‚ CH3Cl (Q.12) HCl and HI do not give anti- markovnikov’s addition to alkenes in the presence of peroxides because: ( 1 mark ) (a) Both are highly ionic (b) One is oxidizing and other is reducing (c) One of the step is endothermic in both the cases (d) All the steps
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Adrenergic Agonists (a.k.a. Sympathomimetic Drugs) I. Direct stimulants of α and β receptors 1. Epinephrine (Adrenaline) 2. Norepinephrine (Levophed) 3. Levonordefrin (Neo-Cobefrin) 4. Dopamine (Intropin) 5. Ephedrine II. Direct stimulants of α receptors (α agonists) 1. Phenylephrine (Neo-synephrine) III. Direct stimulants of β receptors (β agonists) 1. Isoproterenol (Isuprel) 2. Selective stimulants of β2 receptors in the bronchi (for asthma) 2.a. Salbutanol (Ventolin) 2.b. Terbutaline
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Throughout the week in the toxicology lab‚ I was acquainted with distinctive sort of tests and I got the opportunity to find out about the following: 1- hTSH test (Human thyroid stimulating Hormone): - Add calibration and +/- controls‚ before starting the punching process. - Add hTSH assay buffer + stock solution. - Put the plate on a fast quick shaking for 10mins‚ and afterward 4 hours moderate shaking at room T° -Add washing solution. -Add enhancement solution‚ and read the result.
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1. Introduction: a) Origin of the report: To understand the implementation of marketing theories through a relevant practical situation‚ we were instructed by Mrs. Rabeya L Yousuf‚ our course instructor‚ to prepare this report. b) Objectives: The major objective of this study is to get the practical experience and knowledge about the marketing strategic theories undertaking the marketing strategy of ACME Laboratories Limited. For presenting the report concisely and precisely‚ one of the popular
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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
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