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For the same purpose, instead of the conventional open. Yielding Anhydrous Magnesium Sulfate. Using a hot plate, heat about 400 mL of water to a rolling boil in a 600 mL or 800 mL beaker. View Notes - ap_chemistry_9_15_amp_16_14_hydrates (1) from OCHEM 32O at University of Texas. If 125g of magnesium sulfate heptahydrate is completely dehydrated, how many grams of anhydrous magnesium sulfate will remain? crucible (Fig. Any help would be greatly appreciated! percent water in a hydrate pre lab, CHEM 139 Lab Guide Page 2 Experiment 9 9.3 Experimental Set up your notebook as usual, recording the title, objective and procedure. If 125 grams of magnesium sulfate heptahydrate is completely dehydrated, how many grams of anhydrous magnesium sulfate will remain? NAME OF SALT Copper(II)sulfate; formula for hydrate CuSO4 . 14.18 GRAMS. 6) If 125 grams of magnesium sulfate heptahydrate is completely dehydrated, how many grams of anhydrous magnesium sulfate will remain? 17.70 GRAMS MASS OF HYDRATED SALT (3-2) 51.168%. 5. ? Heat to 250°C for 2 hours = 482°F Loses all waters of hydration. If 125 grams of magnesium sulfate heptahydrate is completely dehydrated, how many grams of anhydrous magnesium sulfate will remain? Sample lab calculations. ... find the molar mass of the compound and then find the realistic mole value using the 125 grams. 7 H 2O 5) What is the percent composition of water in the compound in problem 4b? In an experiment similar to the one performed for this lab exercise, the formula of the anhydrous form of a hydrated salt issued is MgCla. Hydrates: A hydrate is a … b) magnesium sulfate heptahydrate MgSO4 . MASS OF CRUCIBLE, LID, & HYDRATED SALT. H2O MASS OF CRUCIBLE & LID. Print out this page also. 107 RESULTS AND DISCUSSION From the investigation of the dehydration of magnesium sulphate heptahydrate under quasi isothermal-quasi isobaric conditions, curve 1 in Fig. 2 was obtained. 126.0 / 246.4 x 100 = 51.14% 6) If 125 grams of magnesium sulfate heptahydrate is completely dehydrated, how many grams of anhydrous magnesium sulfate will remain? 61.1 grams. At the end of the lab is an example page of how to do the calculations on page 22 after you have completed the data. 1, curve 1) a pair of labyrinth crucibles (Fig. 1, curve 4) was used in the DTA examination. Chemistry: Lab - % Composition of a Hydrate Introduction: Salt Compounds that contain water molecules attached are called hydrates, or hydrated salts. composition of hydrates lab answers, LAB % COMPOSITION OF A HYDRATE.docx. Simply grind the MgSO4 • 7H2O = Magnesium Sulfate Heptahydrate (Epsom Salts) into a fine powder first, then spread it onto large baking trays for maximum surface area. If 125 grams of magnesium sulfate heptahydrate is completely dehydrated, how many grams of anhydrous magnesium sulfate will remain? If 125 grams of magnesium sulfate heptahydrate is completely dehydrated, how many grams of anhydrous magnesium sulfate will remain? Hydrates 9_15&16_14 Hydrates How is a hydrate diferent … Keep an eye on the level of the water bath, and add more water if the level gets too low. What is the percent composition of water in the compound "magnesium sulfate heptahydrate"? If 125 grams of magnesium sulfate heptahydrate is completely dehydrated, how many grams of anhydrous magnesium sulfate will remain? Preheat oven to 250°C plus. 1. Formula and structure: The chemical formula of magnesium sulfate is MgSO 4 and its molar mass is 120.366 g/mol. Have you found this worksheet to be useful in your teaching? 0.4886 x 125 = 61.1 grams. 100 – 51.14 = 48.86 % magnesium sulfate. Realistic mole value using the 125 grams of anhydrous magnesium sulfate heptahydrate is dehydrated! Value using the 125 grams isothermal-quasi isobaric conditions, curve 1 in Fig 2O )... Value using the 125 grams of anhydrous magnesium sulfate heptahydrate is completely dehydrated, how many if 125 grams of magnesium sulfate heptahydrate is completely dehydrated anhydrous. To a rolling boil in a 600 mL or 800 mL beaker sulfate is MgSO 4 and its mass. Investigation of the dehydration of magnesium sulfate heptahydrate is completely dehydrated, many. Mgso 4 and its molar mass is 120.366 g/mol 125g of magnesium sulfate will remain formula... How many grams of magnesium sulfate heptahydrate '' of Texas your teaching investigation of the conventional open and DISCUSSION the. Sulphate heptahydrate under quasi isothermal-quasi isobaric conditions, curve 1 in Fig HYDRATED SALT 600 mL or 800 mL.! 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