Constants Tigures Part A while 600 x 195 Express your answer with the appropriate number of significant figures. Submit Previous Answers Request Answer X Incorrect; Try Again; 3 attempts remaining Part B 2.40 (5)(25) Express your answer with the appropriate number of significant figures. Submit Request Answer P Pearson

Constants Tigures Part A while 600 x 195 Express your answer with the appropriate number of significant figures. Submit Previous Answers Request Answer X Incorrect; Try Again; 3 attempts remaining Part B 2.40 (5)(25) Express your answer with the appropriate number of significant figures. Submit Request Answer P Pearson

Chemistry: Principles and Reactions

8th Edition

ISBN:9781305079373

Author:William L. Masterton, Cecile N. Hurley

Publisher:William L. Masterton, Cecile N. Hurley

Chapter2: Atoms, Molecules, And Ions

Section: Chapter Questions

Problem 90QAP: Calculate the average density of a single Al-27 atom by assuming that it is a sphere with a radius...

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Am I right? Calculate the mass percentage of water in the hydrate. Show the calculations. Sample 1 : 60.87% Mass of hydrate : 0.46g Mas of water : 0.28g Mass percentage of water in the hydrate = 0.28g/0.46g x 100 = 60.87% Sample 1 2 3 Calculations for sample 1 Mass of aluminum dish 1.24g 1.26g 1.24g - Mass of aluminum dish + Epsom salt 1.70g 1.94g 1.80g - Epsom salt, original (hydrated) mass 0.46g 0.68g 0.56g 1.70g – 1.24g = 0.46g Mass of aluminum dish + Epsom salt after heating 1.42g 1.62g 1.61g Epsom salt, heated (dehydrated) mass 0.18g 0.36g 0.37g 1.42g- 1.24g = 0.18g Mass of water 0.28g 0.32g 0.19g 0.46g – 0.18g = 0.28g Moles of magnesium sulfate 0.0015mol 0.0030mol 0.0031mol 0.18g x (1mol/120.37g)= 0.0015mol Moles of water 0.016mol 0.018mol 0.011mol 0.28g x (1mol/18.02g) = 0.016mol Ratio of moles water: moles of magnesium sulfate 32:3 18:3 11:3.1…
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