copper sulfate hydrate lab sources of error
Concepts covered include:Definition of a hydrateHow the chemical formulas of hydrates are written Nomenclature of hydratesHow to determine the formula of a hydrate with examleUses of hydrates, Students find the percent water, calculate percent error and using simple steps of 1-4 find empirical formula for copper(II) sulfate crystals. In this section we will demonstrate the dehydration and re-hydration of cobalt (II) chloride hexahydrate. Water lost: 4.60g. I would go with a full fledged error propagation analysis on this one, because without systematic approach you might be guessing forever. Copper sulfate water of hydration lab and answer sheet and question By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. - CLICK HERE **--------------------------------------------If you like what you see, check out the rest of my store and be sure, This hydrate lab activity is perfect for chemistry teachers without a lab room! Is it safe to publish research papers in cooperation with Russian academics? Updated sections include a new hydrate toolbox, updated correlations and computer methods. Minutes in set-up time! When you have finished, submit this assignment to your teacher by the due date for full credit. Send me a message, I'd love to hear from you! Two sources of error include _____. This lab will go in your lab book. In this section you will observe the changes in the physical properties of compounds, including wetness, color, structure, texture and mass. Experimental data may be collected with other students in introductory chemistry labs. Le Chateliers principle predicts that an addition of heat to an endothermic reaction (heat is a reactant) will shift the reaction to the right (product side). For a compound to be a true hydrate, it has to show all properties of true hydrates, including evolution of water upon heating, solubility of its anhydrous residue in water and reversibility in the color of the residue back to the color of the hydrate when dissolved in water. How did it compare to the actual (it is given to you in step 3 of the calculations)? Abstract:
** Interested in my other Chemistry Resources?? Why don't we use the 7805 for car phone chargers? Making statements based on opinion; back them up with references or personal experience. In this section you will try to determine through the testing of a series of compounds, which ones are true hydrates. Safety: When heating a substance in a test tube, be sure the open end of the test tube points away from yourself. When dissolved in water, the anhydrous compound will have a color similar to that of the original hydrate even if it had changed color going from the hydrate to the anhydrous compound. This was determined by recording the absorbance values of five solutions of Copper Sulfate and distilled water of different molarities. : an American History (Eric Foner), Chemistry: The Central Science (Theodore E. Brown; H. Eugene H LeMay; Bruce E. Bursten; Catherine Murphy; Patrick Woodward), Biological Science (Freeman Scott; Quillin Kim; Allison Lizabeth), The definition of a hydrate is a chemical that contai, ), hydrated ferrous sulfate, hydrated cobalt sulfate, sucrose, epson salt, 4 test tubes, test, Seidel's Guide to Physical examination (043), Educational Psychology and Development of Children Adolescents (D094), Language Arts Instruction and Intervention (C365), Health Assessment Of Individuals Across The Lifespan (NUR 3065L), Introduction To Project Management Software (CSBU539), PHIL ethics and social responsibility (PHIL 1404), Professional Application in Service Learning I (LDR-461), Advanced Anatomy & Physiology for Health Professions (NUR 4904), Principles Of Environmental Science (ENV 100), Operating Systems 2 (proctored course) (CS 3307), Comparative Programming Languages (CS 4402), Business Core Capstone: An Integrated Application (D083), A&p exam 3 - Study guide for exam 3, Dr. Cummings, Fall 2016, BMGT 364 Planning the SWOT Analysis of Silver Airways, Lesson 13 Paleoseismology Case Studies; Induced Seismicity, Skill Blood Admin - Active Learning Template, Philippine Politics and Governance W1 _ Grade 11/12 Modules SY. You will be able to edit the document to your needs and share it with your students. Little or no prior knowledge of finding empirical formula necessary. To determine the mass of the water, subtract the anhydrate from the hydrate and put it in the proper space above. Calculate the change in mass for each sample. Lab Report
Be sure that the flame will be close enough to the triangle to engulf the entire crucible. Measured mass of crucible with anhydrous copper sulfate: 37.3005g. Copper/Iron Stoichiometry Grace Timler AB1 October 3, 2017 Abstract The techniques used in this lab are quantitative transfer and vacuum filtration with the reaction of 8.001 grams of copper (II) sulfate, CuSO4, and 2.0153 grams of iron powder, Fe. Common examples of minerals that exist as hydrates are gypsum (\(\ce{CaSO4*2H2O}\)), Borax (\(\ce{Na3B4O7*10H2O}\)) and Epsom salts (\(\ce{MgSO4*7H2O}\)). Chemicals: Copper (II) sulfate hydrateStudents will experimentally determine the percent composition of water in the copper (II) sulfate hydrate. For Part 2: Single-Displacement Reactions: For each of the four single-displacement reactions, describe what happened in each well. B. The actual percent is ____. Academic Chemistry - Three paragraph conclusion. Materials: Tests tubes (small or medium size), watch glasses, crucible* and cover*, crucible tongs, clay triangle. Use caution when heating the crucible and cover. My percent error is _____. Then use that information to write the formula of the hydrate. The water present in the latter case is called water of hydration or water of crystallization. Follow the directions below to complete the lab. Why purchase my version of this lab? Chemistry Honors Copper Sulfate absorbs water easily, forming a weak bond between the copper sulfate and five water molecules. What did you learn? Reasons to use this instead of removing water from a hydrateYou want to do a "trial run" of the lab before performing it with your studentsYou don't have a labYou don't have enough lab materials or che, In this lab, students will remove the water from copper (II) sulfate pentahydrate by heating and determine the empirical formula. This is probably a small effect. Ive compared its readings at weights of about 2, about 20, and about 50g, with another similar model, and they agree to within 10mg (one digit in the final decimal place) at all weights. PDF Experiment 1 Hydrates Return the evaporating dish with the hydrate to the wire gauze. Grace Timler I give you teacher set up instructions, a key, and sample calculations. Purpose: A student trying to determine if a white solid is a true hydrate heats the sample and finds that there is evolution of water, that the residue obtained is soluble in water and that the solution is colorless. Cross), Forecasting, Time Series, and Regression (Richard T. O'Connell; Anne B. Koehler), Psychology (David G. Myers; C. Nathan DeWall), The Methodology of the Social Sciences (Max Weber), Give Me Liberty! -Bunsen burner Follow the directions below to complete the lab. Also, suggest some reasons why your number might be off from the true number. PDF Hydrate Lab By Maya Parks 2/20/15 1.7: Experiment 6 - Hydration of Salt - Chemistry LibreTexts X is a specific whole number value. Abstract Happy teaching and have an, Students find the Empirical Formula of Epsom Salt. This error is almost completely determined by the error in $W_e$. If the results of your calculations suggest that you have some water left in the residue, reheat your sample for an additional 5 minutes, allow it to cool down and weigh it again. Purpose: To observe the difference between chemical and physical changes. rev2023.5.1.43405. You will determine the number of moles of copper produced in the reaction of iron and copper (II) chloride, determine the number of moles of iron used up in the reaction of iron and copper (II) chloride, determine the ratio of moles of iron to moles of copper, and determine the number of atoms and formula units involved in, In this lab a number of small experiments were conducted in order to observe the reactions of the materials tested. { "01:_Using_Excel_for_Graphical_Analysis_of_Data_(Experiment)" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.
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