The calculations completed for this experiment include determining the amount of Na2CO3 needed to do a full reaction. This was calculated through stoichiometry calculations: Molar mass was first calculated for CaCl2*2H2O Ca = 40.078g Cl2 = 35.453g*2 = 70.906g 2H2 = 1.00794g*4 = 4.03176g 2O = 15.9994g*2 = 31.9988g 40.078g + 70.906g + 4.03176g + 31.9988g = 147.01456g or 147.0 g CaCl2 1g CaCl2 * 2H2O x (1 mol CaCl2 *2H2O/147g CaCl2 *2H2O) = 0.0068 mol of CaCl2*2H2O Molar mass was then
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IB CHEMISTRY Stoichiometry Lab Data Collection and Processing Item | Mass | Small beaker (100 mL) | 47.0 grams | Large beaker (150 mL) | 82.4 grams | Mass of filter paper | 0.50 grams | Mass of coffee filter | 1.00 gram | 150mL beaker + 20mL water + lead nitrate solution | 96.1 grams | 100mL beaker + 20mL water + sodium carbonate solution | 64.2 grams | Watch glass | 32.2 grams | Precipitate + filter paper + coffee filter | 2.20 grams | Precipitate + 150mL + coffee filter
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Victoria Wang‚ and Grace Xiong Mrs. Rhonda Smith Honors Chemistry Period 4 13 May 2012 Redox Reactions Lab Report We wished to investigate the oxidation number of a metal that would form aqueous ions when reacted with an aqueous nitrate salt. For this purpose‚ we chose to investigate the reaction of solid copper metal‚ in the form of a wire‚ with aqueous silver nitrate. Before we began the lab‚ we hypothesized that when silver nitrate‚ AgNO3‚ reacts with copper‚ Cu‚ the oxidation number of silver
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Copper-Iron Stoichiometry Lab Report 10/3/12 Abstract: The lab performed required the use of quantitative and analytical analysis along with limiting reagent analysis. The reaction of Copper (II) Sulfate‚ CuSO4‚ mass of 7.0015g with 2.0095g Fe or iron powder produced a solid precipitate of copper while the solution remained the blue color. Through this the appropriate reaction had to be determined out of the two possibilities. Through the use of a vacuum filtration system the mass of Cu was
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The progress of the reaction was monitored in my case using two TLC plate. It first started off with the spotting of Standard benzoin and benzil which were provided in the lab and followed by the addition of the reaction mixture at once it starts changing colour/boiling‚ then at 10 and 20 mins into the reflux. Once all the necessary steps were spotted‚ the TLC plate was placed in in a beaker containing CH₂Cl₂(methylene chloride)‚ which was used as the developing solvent in this experiment. To check
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1.3 Communication Basics learning objectives Describe how the communication principles and misconceptions in Chapter 1 are evident in a specific situation. Assess the needs (physical‚ identity‚ social‚ and practical) that communicators are attempting to satisfy in a given situation or relationship. Apply the transactional communication model to a specific situation. Instructions Use the case below and the discussion questions that follow to discuss the variety of communication issues involved
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Rodney L. Bennett Jr ISSC362 Week 1 Lab #2: Implement Hashing and Encryption for Secure Communications Instructor Name: _Adam Meyer_ Lab Assessment Questions 1. Compare the hash values calculated for example.txt that you documented during this lab. Explain in your own words why the hash values will change when the data is modified. The hash file is changed when the data is modified because the information within the file has changed and it is considered a new/different file. 2.
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Basic Laboratory Techniques Hari D. Mandal‚ PhD. Objectives 1. To use common laboratory apparatus in measuring mass‚ length‚ volume‚ temperature‚ and density 2. To compute the accuracy and the precision of a set of scientific measurements 3. To apply the concept of significant figures in reporting correctly scientific measurements Materials and Equipment Ruler‚ meter stick‚ 10 mL graduated cylinder‚ 50 mL graduated cylinder‚ small and large test tube‚ 50 mL and 150 mL beakers
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Practicum 2: Stoichiometry of Chemical Reactions Written by: Ade Istianto (2014990003) Aprizky Bagus Heldinto (2014990002) Deas Pratama (2014360004) Paskah Andreas Deo Gratias (2014370005) Sampoerna University ABSTRACT This experiment is endure to determine and study about the stoichiometry of chemical reactions in certain chemicals. The experiments were to make sure student are able to use and learn the Job’s method-the method of continuous variation-for determine the reaction stoichiometry. In the
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Get all the equipment’s ready and put them on a table. Take a pair of goggles and put them on and make sure hair is tied up‚ if long‚ using any sort of hair band. Take the 100ml glass beaker and place it under the water tap’s opening‚ the place where the water comes out from‚ then turn the tap on. Do not turn the tap off until the water inside the beaker reaches the 50ml mark‚ to ensure that there is only 50ml of water in the 100ml beaker. Then take the beaker and place it somewhere safe on the table
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