Conclusions 5. Net ionic equation worksheet answers write balanced molecular ionic and net ionic equations nie for each of the following reactions. endobj What percentage of water is found is Na 2 S * 9H 2 O? 7 0 obj /Title (AP\040ws\040Hydrates\040key) /Width 2150 6 0 obj /Subtype /Image endstream What percentage of water is found in CuSO 4 * 5H 2 O? Testable Prediction: Our unknown hydrate may be a hydrate of copper(II) sulfate, magnesium sulfate, iron(III) chloride, or iron(III) nitrate. Experiments show that the molar mass of the compound is 283.9 g/mol. 7. 7. What percentage of water was in the hydrate? /Type /XObject /Type /Page What percentage of water found in Na 2S•9H 2O? What percentage of water was in the hydrate? Purpose. 1. KEY 1. /Pages 2 0 R /ProcSet [ /PDF /Text /ImageB /ImageC /ImageI ] müÀz2` Ë-`E5ÐRj½î²$U]@@eS°ìAPéµb¸l Õ ¡ëZP¼z /çÖ¨ £IZÀ3!3ÐÌ 14jÍ©Pq¶Djg:iÝN¾Q`оUº0õ. Title: Microsoft Word - 7-21a % Composition and Empirical Formulas wkst-Key .doc Author: Brent White Created Date: 6/28/2005 11:31:03 PM A compound has the following % composition—76.54 % C, 12.13 % H, and 11.33 % O. endobj Favorite Answer Assuming only and all water was lost -- that water was 0.7 g. The original salt weighed 5 g, so percentage water in hydrate was 100*(0.7/5) = 14% Why do hydrates form? Experimental Question: How can we experimentally determine the formula of an unknown hydrate, A? /Filter [ /FlateDecode ] endobj This video covers how to calculate the percentage composition of a hydrate >> determining the formula of a hydrate chem worksheet 11 6 answer key, 2 PLAN Determine the information necessary to answer the questions. Observing our nitrate, it has a white crystalline structure, representing that … Performance Wealth. Naming Ionic Compounds and Hydrates Answer Key Write the name for each of the When heated above 100oC, hydrates lose their water molecules fairly easily since the hydrate bonds are much weaker than the ionic bonds between the salt ions. Use the diagram on page 166 to determine the type of bond. >> endobj For example, the formula CuS0405H20 indicates that there are five water molecules for every one formula unit of CuSOa. 3. /ColorSpace /DeviceGray /BitsPerComponent 8 7. Number Prefix stream Copper(II)sulfate pentahydrate. Determining the Chemical Formula of a Hydrate Group Members: Akshay , Jason, and Doris Teacher: Ms.Misiri By : Ravinna Raveenthiran Course Code: SCH3U Due Date: May 2 2016 Chemistry Lab Purpose: The purpose of this experiment is to determine the chemical formula for the hydrate … Example: CuSO4 x 5H2O has 5 water … Percentage Composition Worksheet – Answer Key Give the % composition of all elements in these compounds. 1. Some of the worksheets for this concept are Work 7 nomenclature of hydrated ionic compounds, Hydrates work, 7 29 molecular formulas and hydrates wkst, Hydrate practice problems, Key, Nomenclature work molecular compounds binary, , Empirical and molecular formula work. Answer the questions below. f the 8. Interpreting information Explain why the mass of the sample decreased after it was heated, despite the law of conservation of mass. Copper (I) Bromide tetrahydrate. endobj stream /Producer (Haru\040Free\040PDF\040Library\0402.1.0) 1 0 obj What percentage of water was in the hydrate? For example: CuSO 4 5H 2 O(s) CuSO 4 (s) + 5H 2 O(g) hydrate anhydride << HW – Hydrates, Percent Composition, EF/MF Date _____ Complete these problems on a separate sheet of paper. A certain hydrate is found to have the following percent composition by mass: 20.3% Cu, 8.95% Si, 36.3% F and 34.5% H 2 O. Hydrates can normally be decomposed into the anhydrous (without water) salt and free water by gentle heating. >> Percent Composition of Hydrates 6. << Percent Composition of Hydrates and Answer Key Assigned as HW on 2/27/18 Percent Composition Review Book HW Answers AND Mole Conversions Packet and Answer Key Assigned as HW on 2/28/18 Stoichiometry WS 1 and 2 Answer Key… William weighs an empty beaker and finds it to have a mass of 95.83 g. After putting a spoonful of an unknown hydrate into the beaker, he finds that … << /Length 8 0 R To find the 5 0 obj >> Hydrate Lab. 2. Composition of Hydrates Worksheet (DOCX 15 KB) Determining Empirical Formulas Worksheet (DOCX 14 KB) Determining Molecular Formulas (True Formulas) ... Stoichiometry - Volume-Volume Problems Worksheet - Answer Key (DOCX 18 KB) NEED HELP DOWNLOADING: doc file: You need the Microsoft Word program, a free Microsoft Word … ¾ûò%'fì9ßG 31PÚí´{_& uºê}æºyYAk% -6b ÎN± Pqxº¬2 ¥S9è2£×a}z`-jeµ D¤û,R±¤@ ¢ aY´´ QÁÀrjºúÇRpkõ¦sT:v L/u:Ih´8%,[s ÉÍ[É2 V¼/_¨ù A 5.0 g sample of a hydrate of BaCl 2 was heated, and only 4.3 g of the anhydrous salt remained. naming hydrates worksheet answers, net ionic equations pogil answer key in pdf format. Look up the electronegativity values for each element. 1. Na 2S: 2(23.0) + 32.1 = 78.1 g/mol 9H 2O: 9(18.0) = 162.0 g/mol Na 2S•9H 2O (total): 240.1 g/mol %H 2O = 162.0/240.1*100 = 67.5% 2. Some of the worksheets displayed are Water wise work, Stoichiometry 1 work and key, 4 h national youth science day youth work, Chapter 20 work redox, Determining the formula of a hydrate name chem work 11 6, Balancing chemical equations work 1, Balancing equations work and key 7 23 09, Mole calculation work. P 2O 5 2(31.0 g) + 5(16.0 g) = 142.0 g 283.9 / 142.0 = 2 P 2O 5 x 2 = P 4O 10 2. View Homework Help - Worksheet - Naming Ionic Compounds and Hydrates - Answer Key from CH 204 at University of Texas. 6. 6. In this chemistry worksheet, students look for the concepts connected to hydrates and answer the variety of questions given for the assessment. >> @»tMÝLÉñ\oêè =Ô± Kimberly Graziano & Hyunjae Kim. Showing top 8 worksheets in the category - H2o. Naming Hydrates AnswersView Homework Help - ANSWER KEY_Worksheet - Naming Ionic Compounds and Hydrates.pdf from CH 204 at University of Texas. << In order to determine this, we weighed the mass of Copper (II) Sulfate, boiled it for about 10 minutes until it became an anhydrous salt, … Show all work! Determine the percent Oxygen in Potassium Perchlorate. The given … for the following hydrates: barium Phosphate dihydrate it was heated, despite the of! A specific ratio to each formula unit of CuSOa ( a process called “ dehydration.... 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