copper sulfate hydrate lab sources of errorbreaking news shooting in greenville, nc

No. Removed crucible from burner, placed on mesh pad, and allowed to return to room temperature. Excellent layout. Follow the directions below to complete the lab. Making statements based on opinion; back them up with references or personal experience. A 'chemical' source of error is that the Hydrated copper sulfate (CuSO 4), hydrated ferrous sulfate, hydrated cobalt sulfate, sucrose, epson salt, 4 test tubes, . Students chew bubble gum to remove sugar instead of removing water from a hydrate. If youve read this far, Im already grateful, but Id be even more so, if anyone could suggest where the difference between 5 and 5.18 is coming from. This compound is not dissolved in water, the water is part of the formula and is a solid. Copper Sulfate's Water of Hydration Lab Copper Sulfate's Water of Hydration Lab: Enrichment Activity Purpose - To observe the effect of removing the "water of hydration" from hydrated copper(II) sulfate. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. Previous to an exposure to heat via the stove, it can be seen that the copper sulfate bear the natural form and colour of a bright blue crystal. But when copper sulfate is heated (as in a fire), these weak bonds are broken and the water evaporates. Introduction In this lab students will heat a hydrate and from their collected data, calculate their percent error, and calculate the number of moles water in the hydrategiving them the final formula for the hydrate. Score If, like @brinnb suggests, an additional reduction in $W_e$ could be expected due to adhered water say that the error in $W_e$ is $0.1$ g you already get to $\Delta X=0.17$ mol water per mol copper sulphate. This lab will go in your lab book. Students will perform an experiment to find the hydrate formula. Covering the fundamental properties, thermodynamics and behavior of hydrates in multiphase systems, this reference explains the basics before advancing to more practical applications, the latest developments and models. Your name and the names of any lab partners. Introduction to Formulas (FREE) Introduction: Are you getting the free resources, updates, and special offers we send out every week in our teacher newsletter? Through this the appropriate reaction had to be determined out of the two possibilities. You did what I thought of doing but didn't get around to do. cup' method. C.7.A: The student is expected to name ionic compounds containing main gr, Lab: Determining the Composition of a HydrateFor students in Grades 8-12.INTRODUCTION:Hydrates are ionic compounds that have a number of water molecules attached as part of their structure. Chemical Reaction Lab Report > A C @ 6 bjbjWW 9n 5 5 r. Stack Exchange network consists of 181 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. CDC Health Standard 7, Naming Ionic and Covalent Compounds, Acids, and Hydrates, Acids, Bases and Hydrates Names and Formulas | Science Color By Numbers, Naming Compounds Bundle | Nomenclature | Science Color by Numbers, Chemistry Lab: Empirical Formula Hydrated Compound, PPT, WmUp, Ex Tic, Key, Lab, Chemistry Lab Bundle 1: 31 Labs, 17 Inquiry, Quiz, Key, PPT, PDF/Word, Copper (II) Sulfate Hydrate Lab - % composition, UNIT 9 - THE MOLE WORKSHEETS BUNDLE (#59-61), Chemistry Curriculum Full Year Guided Notes Bundle, Formula of Hydrate Lab - Data & Analysis GoogleSheet, Percent Composition, Empirical & Molecular Formulas, of Compounds & Hydrates, Chemistry Lab: Percent Water in a Hydrate. 1. Determining which hydrate of calcium chloride I have? * Salt The date the lab was performed or the date the report was submitted. This error is almost completely determined by the error in $W_e$. When hydrates are heated, the water is released from the compound as water vapor. Will this likely lead to a higher or lower value of \(x\) than the actual value? (Full Name) In this experiment, the percentage by mass of sulfate in an unknown sulfate salt will be determined by gravimetric analysis. I weighed out some of the hydrate into another dry dish, flattened it out as much as possible within the confines of the dish to expose as much surface area as possible, and left it in the airing cupboard for 24h at 26 degrees Celsius. The title says what you did. * Candle Which is very close to the actual error you find. In this part, pea-, sized samples (1-3g) were place separately in test tubes and heated for approxim, Principles of Environmental Science (William P. Cunningham; Mary Ann Cunningham), Educational Research: Competencies for Analysis and Applications (Gay L. R.; Mills Geoffrey E.; Airasian Peter W.), Brunner and Suddarth's Textbook of Medical-Surgical Nursing (Janice L. Hinkle; Kerry H. Cheever), Campbell Biology (Jane B. Reece; Lisa A. Urry; Michael L. Cain; Steven A. Wasserman; Peter V. Minorsky), Civilization and its Discontents (Sigmund Freud), Business Law: Text and Cases (Kenneth W. Clarkson; Roger LeRoy Miller; Frank B. 8.22/(63.5+32+64) = 0.0515mol anhydrous copper sulphate. So now the final thing left to do is estimate how big $\Delta W_0$ and $\Delta W_e$ are. Little or no prior knowledge of finding empirical formula necessary. Where's my experimental error coming from? Purpose: 5 H 2 O 6. In this section we will determine the number of moles of water present per mole of anhydrous solid in a given hydrate. The error you find falls within the worst-case expected error due to impurity and potentially adhered water. It is generally possible to remove the water of hydration by heating the hydrate. Compounds to be tested: \(\ce{Na2SO4*10H2O}\), \(\ce{FeCl3}\), \(\ce{KAl(SO4)2}\), \(\ce{CaCl2}\), \(\ce{CuSO4}\). 1 A student is given a cobalt (II) chloride hydrate. B. so with this last source of error you edited in (the 0.02 g) my estimate of $\Delta W_e=0.1$g actually seems quite realistic. For this step, you are just changing your grams of water to moles using factor labeling. Problem #2: A hydrate of Na2CO3 has a mass of 4.31 g before heating. Explain. Set the crucible with its cover slightly open on a clay triangle and heat strongly for at least 10 minutes. Is it safe to publish research papers in cooperation with Russian academics? In this lab, the five general types of chemical reactions were conducted and observations. Some compounds like carbohydrates release water upon heating by decomposition of the compound rather than by loss of the water of hydration. For $\Delta W_0$ I think it is safe to say that this is only the inaccuracy of the scale, so perhaps $0.01$ g. For $\Delta W_e$ I would go for the worst case scenario: that all of the 0.6% impurity in the original copper sulfate has evaporated, meaning that the weight will be off by 0.6% times $W_0$ i.e. Have you ever wondered why you get a lot of headaches, your muscle doesnt function as well and your immune system is low? . However, because the solutions were not mixed long and thoroughly enough, this made further deviations from what the data should have looked like. Record the appearance of the hydrate before it is heated. * Ammonium hydroxide Wt before: 13.030.9836 = 12.82g hydrate Chemistry Stack Exchange is a question and answer site for scientists, academics, teachers, and students in the field of chemistry. From this, we can calculate the ratio of salt to water (by calculating the molar and stoichiometric ratios), and the percentage of water (by mass) within the hydrated salt (by dividing the mass of the water, by the mass of the hydrated salt, then multiplying the resulting decimal by 100). In this section you will observe the changes in the physical properties of compounds, including wetness, color, structure, texture and mass. +1. If the null hypothesis is never really true, is there a point to using a statistical test without a priori power analysis? Why purchase my version of this lab? \[x = \frac{n_{\ce{H2O}}}{n_{\text{Anhydrous Solid}}} \label{6}\]. Even though it was close, the molarities of the five solutions were not exactly the ones that should have been used to carry out the lab. Use this picture to get the mass of the hydrate (blue powder). Then use that information to write the formula of the hydrate. The second procedure called for us to heat a number of other hydrates and test their vapors for any evidence of acid just as we had done in the previous experimental procedure. Follow the directions below to complete the lab. ; (NH4)2S. The copper sulfate moles should be the smaller. Lab 1: Determining the Empirical Formula of a Compound, Lab 2: Determine the Percentage of Water in a Hydrate, Lab 16: Gravimetric Determination of a Precipitate, Lab 14a: Separation and Analysis of Cations, Lab 18: Separation by Liquid Chromatography, Lab 6a: Standardizing a Solution of Sodium Hydroxide, Lab 33: Determination of Calcium Carbonate Content of and Anti-Acid Pill, Lab 28: Molecular Interaction in Ethanol and Acetone, Obtained crucible and lid (henceforth, the two are considered to be together unless mentioned otherwise), inspected them, and measured their mass: 36.1574g, Obtained equipment, set up ring stand, Bunsen Burner, clay triangle, and mesh pad. For Part 2: Single-Displacement Reactions: For each of the four single-displacement reactions, describe what happened in each well. Purposive Communication Module 2, Leadership class , week 3 executive summary, I am doing my essay on the Ted Talk titaled How One Photo Captured a Humanitie Crisis https, School-Plan - School Plan of San Juan Integrated School, SEC-502-RS-Dispositions Self-Assessment Survey T3 (1), Techniques DE Separation ET Analyse EN Biochimi 1. Heat the blue copper(II) sulfate until it has turned . sulphate, calcium sulphate and lead sulphate. What will be the effect, on the mass of the residue, of overheating the hydrate so that the compound decomposes. Disposed of salt within the proper receptacle, cleaned crucible, and returned all equipment to its point of origin. You will be able to edit the document to your needs and share it with your students. Determined mass of anhydrous salt by subtracting the mass of the crucible and lid, from the mass of the crucible, lid, and anhydrous salt: 1.1434g, Determined mass of the water lost by subtracting the mass of the anhydrous salt, from the hydrous salt: 1.018g. How many moles of water (x) do you think are in this hydrate? The purpose of the flame test lab was to further study the process of electron excitation. -Pre soaked popsicle, Graded Assignment First, it is so easy to set upnot much prep at all. Also, to see the color of each reaction determining the amount of energy released using our color scale. This means part of the copper (II) sulfate would be turned into a gas, sulfur dioxide. Try a color-by-number activity. 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. : 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. This page titled 5: Properties of Hydrates (Experiment) is shared under a CC BY-NC license and was authored, remixed, and/or curated by Santa Monica College. Hypothesis (answer in a complete sentence in lab book). Coloring pages - Water facts, how it helps the brain, how it helps the body, ideas on drinking more water.

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