Assumed water content: 42.6841.98 = 0.7g (!!!). This lesson also covers the benefits of daily exercise an, Naming and Formulas: Polyatomic Ion Compounds and Hydrates Lesson The Homework includes all ionic compound possibilities: binary, ternary, multivalent cations, acids, and hydrates. Eventually, a linear equation that showed the relationship between absorbance and. Do you have pictures of Gracie Thompson from the movie Gracie's choice. copper (II) sulfate hydrate. T, Concepts:This worksheet teaches students how to determine the number of water molecules in a hydrate. Other hygroscopic substances, such as solid \(\ce{NaOH}\), absorb so much water from the atmosphere that they dissolve in this water, these substances are said to be deliquescent. Why don't we use the 7805 for car phone chargers? We can also (via stochiometric and molar ratios), calculate the ratio of salt to water. A substance is classified as efflorescent if its mass decreases by 0.005 g or more; and it is classified as hygroscopic if its mass increases by 0.005 g or more. Why purchase my version of this lab? Great for Teachers:See if student data is on the right track with a few clicks or copy & paste.Check if calculations and conclusions made by students are right without needing manually doing the calculations.Provide s, This unit covers:1) Percentage Composition by Mass2) Finding Empirical Mass and Formulas3) Finding Molecular Mass and Formulas of Compounds4) Student Presentations Project, with rubric5) Finding Molecular Mass and Formulas of Hydrates6) Lab Activity: Determination of a Formula of a Hydrate7) Assessments and Check for Understandings8) Re-Teach PowerPoints, Over 15 practice problems on hydrate nomenclature, naming, and formula writing, complete with a full answer key.Goes Well With My Other Nomenclature Worksheets. Rinse the crucible and its cover with distilled water. Updated sections include a new hydrate toolbox, updated correlations and computer methods. The copper sulfate is dissolved in 100ml of water that is distilled and contained in . Insufficient stirring, so that not all the solid is Also as I was calculating the empirical formula, I wasn't quite sure the figures were correct so I might have miscalculated. What is wrong with reporter Susan Raff's arm on WFSB news? In this activity, I will construct an electroplating apparatus and observe the process of electroplating. Solutions were made up of two parts, the solute and the solvent. Pending marking your answer as accepted, my grateful thanks in the meantime for your detailed analysis. The weight after cooling of the evap dish is constant. A 15.67 g sample of a hydrate of magnesium carbonate was heated, without decomposing the carbonate, to drive off the water. The lab has an introduction to help students understand why they are doing the lab. Firstly to clarify a chemical change is defined as a change resulting. This document includes the pre-lab, procedure, data table, and analysis questions. 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. 3. Compounds to be tested: \(\ce{Na2SO4*10H2O}\), \(\ce{FeCl3}\), \(\ce{KAl(SO4)2}\), \(\ce{CaCl2}\), \(\ce{CuSO4}\). Then I re-weighed. Record the appearance of the hydrate before it is heated. What can this chemical be? Answer: This is a great lab to introduce or reinforce percent composition and empirical formulas. Use crucible tongs when cleaning the crucible with concentrated nitric acid. In this section you will observe the changes in the physical properties of compounds, including wetness, color, structure, texture and mass. Add highlights, virtual manipulatives, and more. For Part 2: Single-Displacement Reactions: For each of the four single-displacement reactions, describe what happened in each well. The water present in the latter case is called water of hydration or water of crystallization. \[ \underbrace{\ce{CuSO4*5H2O (s)}}_{\text{Deep Blue}} \ce{->[\Delta]} \underbrace{ \ce{CuSO4 (s)}}_{\text{Ashy White}} \ce{+ 5 H2O (g)} \label{1}\], \[ \underbrace{\ce{CuSO4 (s)}}_{\text{Ashy White}} \ce{->[\ce{H2O (l)} ]} \underbrace{ \ce{CuSO4 (aq)}}_{\text{Deep Blue}} \label{2}\]. Academic Chemistry - Three paragraph conclusion. Conclusion The mass percent of water in copper sulfate pentahydrate is _______. 1. In this section you will try to determine through the testing of a series of compounds, which ones are true hydrates. Copper/Iron Stoichiometry What did you learn? Is there any known 80-bit collision attack? Your values correspond to a #38.169%# water percent composition for copper(II) sulfate pentahydrate. As such, there is always the possibility of inaccuracies with measurement, perception of measurement, inaccuracies of equipment, and other such errors. Copper Sulfate's Water of Hydration Lab: Enrichment Activity. 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. Some compounds like carbohydrates release water upon heating by decomposition of the compound rather than by loss of the water of hydration. The purpose of this lab is to determine the relationship between moles of copper sulfate and moles of water in a hydrate. Materials: Two forms of this lab included for student differentiation. In this lab, a SpectroVis was used to determine the concentration of an unknown substance. Save the residue and perform your calculations. Ferrous or iron(II) compounds can easily be oxidised to ferric This compound is not dissolved in water, the water is part of the formula and is a solid. Disposed of salt within the proper receptacle, cleaned crucible, and returned all equipment to its point of origin. Label and place all samples at the same location in the room, well out of the way so they wont be spilled. Any anhydrous compound from a hydrate generally has the following properties: Most hydrates are stable at room temperature. When heated gently, the red burgundy \(\ce{CoCl2*6H2O}\) will decomposes into the violet \(\ce{CoCl2*2H2O}\) then to the blue anhydrous \(\ce{CoCl2}\). * Phenolphthalein To participate in this lab it is, that there was no release of acidic vapors during the separating of the water and compound bonds. The number you found for the water replaced the x in the formula CuSO4 xH2O. What should I follow, if two altimeters show different altitudes? Where's my experimental error coming from? To find the expected error in the answer, $\Delta X$, assuming no error in the molecular masses, we calculate: \[x = \frac{n_{\ce{H2O}}}{n_{\text{Anhydrous Solid}}} \label{6}\]. 6. They are typically named by stating the name of the anhydrous component followed by the Greek prefix specifying the number of moles of water present then the word hydrate (example: \(\ce{MgSO4*7H2O}\): magnesium sulfate heptahydrate). ALL of the Chemistry Labs you need for a WHOLE year!! The reaction occurred and 2.4469 grams of solid copper, Cu, precipitated; therefore, showing that the limiting reagent was iron. Period 3 Student exploration Graphing Skills SE Key Gizmos Explore Learning. 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. Set up the apparatus as shown (but without water in the receiving tube - this is to be collected during the experiment), placing about 5 g of powdered hydrated copper(II) sulfate in the test tube. 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. Empirical Formula of a Hydrate Chemistry Lab. Chemistry Experiment # _____ Percent of Water in Copper II Sulfate Pentahydrate Name_____ Section_____Date_____ Name(s) of Lab Partner(s) . The equation for the decomposition of copper (II) sulfate is CuSO4 (aq) ==> SO2(g) + CuO(s). 1. This is written CuSO4 . The actual value of moles of water per copper sulfate is 5 moles and the percent composition of water in copper sulfate pentahydrate is 36.1% Variables: Independent Variable: Mass of crucible, cover and hydrated sample in grams Dependent Variable: Mass of water evolved in grams Will this likely lead to a higher or lower value of \(x\) than the actual value? NomenclaturePossible Uses- Worksheet- Activity- Homework- Classwork- Test Review- Quiz ReviewFeedbackHave questions or feedback? When you would go to mass the anhydrous salt, some of the mass would be missing as it would be in the air. So iron(II) sulphate This lesson presumes a basic understanding of how to name and write the formulas for binary ionic compounds. If the correct formula of copper sulfate is CuSO4.5H20, determine your percent error. The mass was reduced to 7.58 g. What is the formula of the hydrate? (MgSO 4 XH 2 O). The formula for hydrated copper sulfate is: Possible improvements that could be made to this experiment in the future could include increasing the sample size, to produce a more average measurement. The error you find falls within the worst-case expected error due to impurity and potentially adhered water. Rounding out with new case study examples, this new edition gives engineers an im, This PowerPoint is intended to introduce high school students formulas of hydrates. For example, if a given amount of hydrated copper(II) sulfate gave off 0.060 mole of H 2 O and left behind 0.012 mole of anhydrous copper(II) sulfate, CuSO 4, then the ratio of H 2 O to CuSO 4 is 5:1, and the formula would be written as CuSO 4 5H 2 O. Use this tool to record your data and then watch all the necessary calculations and analysis completed in seconds!This resource accompanies the lab handout/procedure here. The lesson tutorial and the previous, reaction of iron nails with a solution of copper (II) chloride and determine the number of moles involved in the reaction. You'll be surprised at how much older kids like to color!This Science color-by-numbers activity includes 18 questions covering writing a formula from the name of an acid, hydroxide or hydrate or naming the compound from a chemical formula. Weigh the samples and record the masses as final masses. Lab reports are due week of September 29 October 3, 2014. When you have completed the experiment, dissolve all your heated residues in water, put all your solids and liquids in the waste crock. So you will get 1 copper sulfate and your amount of water should be larger than 1 when you divide by the smallest. Little or no prior knowledge of finding empirical formula necessary. Molarity is calculated by diving the number of moles in the solute by the volume (in liters) of the complete solution. Mass a dry watch glass Add a small scoop of blue hydrate Mass the watch glass and hydrate Heat the hydrate on hot plate until all blue is gone Allow watch glass to cool Mass the watch glass and anhydrate . Safety: Patel Introduction Find out the importance of drinking plenty of water and the adverse health effects of not getting enough water. The purpose of this bundle is to offer a worksheet to cover every type of naming.Goes Well With My Other Nomenclature Worksheets.NomenclaturePossible Uses- Worksheet- Activity- Homework- Classwork- Test Review- Quiz ReviewFeedbackHave questions or feedback? Heat the test tube and note any condensation that may appear at the mouth of the test tube as evidence of dehydration, note the color of the residue. You will be able to easily integrated it into your Learning Management System. * Iodine When this color change appears to be complete, add 3 to 5 mL of water and observe the color of the dissolved substance. For this step, you are just changing your grams of copper sulfate anhydrate (white powder) to moles using factor labeling. 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. Finding the formula of hydrated copper(II) sulfate | Experiment | RSC Education In this experiment students will measure the mass of hydrated copper(II) sulfate before and after heating and use mole calculations to find the formula. Grace Timler 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! cup' method. Purpose and a brief description of what you did. That is how I taught it during my first years of teaching, and even though I have a lab room now, I still love and use this activity! What did your group get as the formula of the hydrate? Problem #1: A 15.67 g sample of a hydrate of magnesium carbonate was heated, without decomposing the carbonate, to drive off the water. October 3, 2017 Includes teacher instructions, sample calculations, and a key to the conclusion questions. Place the crucible on the triangle and ring stand over the bunsen burner and heat until it turns white. Distilled, Precipitation Reactions Weigh out approximately 3 grams of copper(II) sulfate pentahydrate into a clean, dry large ignition tube (25 x 200 mm). This mass was taken before the substance was heated. I can also customize anything you've already purchased.Check out some of my other work!Atomic StructureIonic CompoundsNomenclatureGeneral ChemistryScientific Method, End your nomenclature unit with a lab! If a CHEM which works out to: Skip to main content Skip to navigation Mast navigation Register Sign In Search our site All All Resources Articles Crush the copper sulfate hydrate (blue compound) using a mortar and pestle. Concentrations are based on how much solute is in a solvent, and is reported by the units of molarity. Ms. Macielag's Thursday Lab Class (Honors), Building and Identifying All Organic Compounds, Lab Book: Setting Up Graphing Reference Sections, Naming and Writing Formulas (without Formula Mass). Hows your energy level around mid-morning?This health trio bundle will give you and your students the much-needed information as to why eating breakfast, hydrating with the right liquids and sleeping well are important parts of keeping your body and well-being healthy. 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. Measure out between 1 and 4 grams of copper sulfate hydrate that you have crushed into the crucible. The composition of the complex formed when hydrated copper (II) sulfate is reacted with oxine is Cu (C 9 H 6 ON) 2 with 351.85g/mole formula weight. When this anhydrous compound is dissolved in water it will go back to the original red burgundy color. Next, an excess of aqueous barium chloride is added to the aqueous solution of the unknown salt. You will find that most students will obtain the expected results pretty much dead on, and the students love the very low percent erro, Students get to discover the formula of a hydrate with real world experimental techniques in this lab! : an American History (Eric Foner), Chemistry: The Central Science (Theodore E. Brown; H. Eugene H LeMay; Bruce E. 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