3. 10. Calculate the value of " n ", the number of moles of water molecules present per mole of CuSO 4 and Epson Salts. Dividing this number by the original mass will give the percent water in the hydrate. b. experiment percent water in hydrated salt objectives to determine the percent mass of water in hydrated salt. Experts are tested by Chegg as specialists in their subject area. + 5 H2O (g) Experimental percentage. Using your theoretical percent water calculation from calculation in #7 and your percent hydrate lab percent composition of hydrate lab introduction: ionic compounds often separate from water solution with molecules of water incorporated. (Show work for credit.) for 3 minutes. 12. (Hint: Have you seen this compound before? 2. You'll get a detailed solution from a subject matter expert that helps you learn core concepts. Then the Multiplying A HYDRATE. .r ., e z,. 1 (.t Record this mass on your Data Table 9. Find the percent water in cobalt (II) chloride hexahydrate, \(\ce{CoCl_2} \cdot 6 \ce{H_2O}\). Carefully touch the outside of the test tube. . The greater the temperature difference between two temperature reservoirs, the more ________ can be done. 4. (Show work for credit.) (Show work for credit.) What was the mass of water lost? This is your theorectical value. SD= Sq rt (1 / 3 1) a. barium chloride dihydrate b. zinc sulfate heptahydrate 5. known as the anhydrous salt. Experiment 605: Hydrates . Follow the specific instructions in the lab manual for preparing for the weighing bottles. The LibreTexts libraries arePowered by NICE CXone Expertand are supported by the Department of Education Open Textbook Pilot Project, the UC Davis Office of the Provost, the UC Davis Library, the California State University Affordable Learning Solutions Program, and Merlot. Lab 5. PROCEDURE Mass of BaCl2 Determine the percent water of hydration in a hydrate sample. combined with the salt in a denite ratio. Calculate the percent of the water that was in your hydrate at the beginning of the 950+ Experts are tested by Chegg as specialists in their subject area. View Lab Report - Percent Water in Hydrate from MATH 576 at Rift Valley Institute Of Science & Technology, Nakuru.. The prexes in order are: mono, di, tri, tetra, penta, hexa, hepta, octa, nona, and deca. In this laboratory experiment, you will determine the molecular formula of a known hydrate and the percent composition of a hydrate in a mixture of a hydrate and an inert salt. GCC CHM 090 GCC, 2006 1 of 2 Names: _____ Lab Exercise: Percent Water in a Hydrate Introduction: A hydrate is a crystalline solid that traps water as part of its crystal structure. Percent hydration = (90.10 g /249.72 g)(100) = 36.08%, CHEMISTRY 103: PERCENT WATER IN separate the water from the ionic compound by heating it. b. What is your percent error? percent hydration (percent water) can be calculated from the formula of What is your percent error? % H20 ,= (mass H20/ mass of hydrate) x 100 , we 7. Understand the law of definite composition and law of conservation of mass Prior to lab read the sections of our textbook that discuss the topics: moles, molar mass, hydrates, percent composition, and the law of definite composition. What is a hydrate? The following experimental data were obtained for an unknown hydrate. HYDBATG OF HANESIUM SVLFA'E mass .5 gab Mao a .100 7. mass of woc:mass of HS, experimental percentage of water can be found by. The Using the correct formula, find the percent water in copper (II) sulfate pentahydrate. Use exact numbers; do not. Name the following compounds: a. SrCl2.6 H20 b. MgSO4-7 H20 4. (Show work.) (Show work.) Place the weighing bottles in a 50mL beakers in a 800 mL beaker, cover with a watch glass, and heat for specified time at some temperature to drive off the water of hydration. Allow to cool for 3 minutes and then immediately obtain the mass of the evaporating Return the weighing bottles to the oven for an additional specified amount of heating, followed by cooling, and weighing to ascertain whether more water has been driven off. A hydrate can usually be converted to the anhydrous compound by heating.

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