If the heating continued on for longer, more water could have evaporated to the air, leaving less amount of anhydrate left in the beaker. TPT empowers educators to teach at their best. Why Do Organism Look Like the Way They Do. Describes the process of calculating the percent of water in a hydrate. In this lab, we learned how to apply stoichiometry in a new way to determine a formula of a hydrate. This water can be driven off by heat to form the anhydrous (dehydrated) ionic compound, magnesium sulfate. Ratios vary in different hydrates but are specific for any given hydrate. Second, the results are great! The light blue trihydrate non-isolable form can be obtained around 30C. What is lost from the CuSO4 in this process? This is appropriate for all levels of chemistry. Your Teammates have to be able to see and hear you. . The last idea we learned was how to apply the knowledge of colors of specific ions and solids. CuSO5HO (s, blue)heatCuSO (s, white)+5HO (g) 3 steps to determining percent water in unknown hydrate. iron ring The theoretical (actual) percent hydration (percent water) can be calculated from the formula of the hydrate . Hydrate Math The percent of water in a hydrate can be determined in a manner similar to determining the percent composition of a compound. 120.3 g percentage of water in hydrate (from teacher) 51.2 % Processing Your Lab Data. We believe our hydrate was magnesium sulfate, because the unknown hydrate was more closely related in physical appearance to that of magnesium sulfate, compared to the the three other options. 1. After obtaining the data from the video and filling out your data table, you will then perform the necessary calculations to determine the mass, video shows the heating of an unknown hydrated sample. Key Term hydrate lab answers; This preview shows page 1 . Masses are measured beforeheating to determine the mass of theoriginal sample (the hydrate)andafterheating to determine the mass of copper (II) sulfate (CuSO4) anhydrous. Set aluminum dish 1 on top of the wire stand using the forceps. Thus, at the end, we learned that there are countless numbers of applications of stoichiometry in chemistry. Clean up lab area ( point will be deducted if area is not properly cleaned ), Copyright 2023 StudeerSnel B.V., Keizersgracht 424, 1016 GC Amsterdam, KVK: 56829787, BTW: NL852321363B01, incorporated into the solid. How? By knowing that ions such as Cu, have their designated colors, we were able to eliminate three options for the anhydrate, FeCl. The ratios between molecules are in integers, but as this is an experiment, it will be more likely to acquire the ratio in decimal points. Virtual Lab: Hydrates. This phenomenon could have deviated the ratio by causing a loss in the amount of water and anhydrate. Percent Hydrate Lab 2020 - Introduction: Ionic compounds - Studocu Experiment_605_Hydrates_1_2_1 - Chemistry LibreTexts 7H2O) is a heptahydrate of magnesium sulfate:within one mole of magnesium sulfate heptahydrate are seven moles of water. This means we can exclude these three options from our prediction.
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