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1.A student performed an experiment to find the number of water molecules associated with the CuSO, x H,O, and obtained the following data. Using the data given, find the number of water molecules associated with CuSO4 x H,O, and also find out the percentage of water in the hydrate.

1.A student performed an experiment to find the number of water molecules associated with the CuSO, x H,O, and obtained the following data. Using the data given, find the number of water molecules associated with CuSO4 x H,O, and also find out the percentage of water in the hydrate.

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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1.A student performed an experiment to find the number of water molecules associated with the CuSO, x H2O, and obtained the following data. Using the data given, find the number of water molecules associated with CuSO, x H2O, and also find out the percentage of water in the hydrate. Trial-1 1.Mass of empty micro-crucible (grams) 16.3564 2.Mass of micro-crucible + 18.3709 hydrate (grams) 3.Mass of hydrate(grams) 4.Mass of micro-crucible + 17.6372 anhydrate (grams) 5.Mass of anhydrate (grams) 6.Mass of water (grams) 7.Percent composition of water 8.Moles of anhydrate 9.Moles of water 10. Formula of hydrated compound.(CUSO4 x H,O)
Transcribed Image Text:1.A student performed an experiment to find the number of water molecules associated with the CuSO, x H2O, and obtained the following data. Using the data given, find the number of water molecules associated with CuSO, x H2O, and also find out the percentage of water in the hydrate. Trial-1 1.Mass of empty micro-crucible (grams) 16.3564 2.Mass of micro-crucible + 18.3709 hydrate (grams) 3.Mass of hydrate(grams) 4.Mass of micro-crucible + 17.6372 anhydrate (grams) 5.Mass of anhydrate (grams) 6.Mass of water (grams) 7.Percent composition of water 8.Moles of anhydrate 9.Moles of water 10. Formula of hydrated compound.(CUSO4 x H,O)
All of them! Calculations: a. Mass of hydrate:=[(Mass of micro-crucible + hydrate) - (Mass of empty micro-crucible)] b. Mass of anhydrate: =[(Mass of micro-crucible + anhydrate) - (Mass of empty micro-crucible)] c. Mass of water: =[(Mass of hydrate) - (Mass of anhydrate)] Mass of water d. Percentage of water in the hydrate (%) = -x100 Mass of hydrate e. Moles of anhydrate : Mass of anhydrate(g) x Molar mass of anhydrate (g) 1 mol f. Moles of water : 1 mol Molar mass of water(g) Mass of water (g) x Moles of water g. Number of molecules of water(x) = Moles of anhydrate (report this answer in two significant figures) Answer the following: 1. The formula for ibuprofen is C13H18O2. How many moles of ibuprofen are present in 250.0-mg tablet? 2. Given the following molecular formulas, determine the empirical formula of each compound: N,O5, PCl, H,O2, C,H,Cl,.
Transcribed Image Text:All of them! Calculations: a. Mass of hydrate:=[(Mass of micro-crucible + hydrate) - (Mass of empty micro-crucible)] b. Mass of anhydrate: =[(Mass of micro-crucible + anhydrate) - (Mass of empty micro-crucible)] c. Mass of water: =[(Mass of hydrate) - (Mass of anhydrate)] Mass of water d. Percentage of water in the hydrate (%) = -x100 Mass of hydrate e. Moles of anhydrate : Mass of anhydrate(g) x Molar mass of anhydrate (g) 1 mol f. Moles of water : 1 mol Molar mass of water(g) Mass of water (g) x Moles of water g. Number of molecules of water(x) = Moles of anhydrate (report this answer in two significant figures) Answer the following: 1. The formula for ibuprofen is C13H18O2. How many moles of ibuprofen are present in 250.0-mg tablet? 2. Given the following molecular formulas, determine the empirical formula of each compound: N,O5, PCl, H,O2, C,H,Cl,.
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