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Jse the periodic table to calculate the GFW (molar mass) of aluminum sulfate, Al2(S04)3 to 5 significant figures. Use the values provided here: l = 26.981 = 32.065 O = 15.999 emember that the atomic weights on the periodic are not given units. As an average, a single atom of Al has a mass of 26.981 amu. One mole of Al atoms has a nass of 26.981 g, or 26.981 g/mol. chemical formula is the ratio of moles of each element. For example, in H20 there are 2 moles of H and 1 mole of O. mol)(26.981 g/mol) = g mol)(32.065 g/mol) = g mol)(15.999 g/mol) = g. g/mol

Jse the periodic table to calculate the GFW (molar mass) of aluminum sulfate, Al2(S04)3 to 5 significant figures. Use the values provided here: l = 26.981 = 32.065 O = 15.999 emember that the atomic weights on the periodic are not given units. As an average, a single atom of Al has a mass of 26.981 amu. One mole of Al atoms has a nass of 26.981 g, or 26.981 g/mol. chemical formula is the ratio of moles of each element. For example, in H20 there are 2 moles of H and 1 mole of O. mol)(26.981 g/mol) = g mol)(32.065 g/mol) = g mol)(15.999 g/mol) = g. g/mol

Chemistry for Engineering Students
Chemistry for Engineering Students
4th Edition
ISBN:9781337398909
Author:Lawrence S. Brown, Tom Holme
Publisher:Lawrence S. Brown, Tom Holme
Chapter3: Molecules, Moles, And Chemical Equations
Section: Chapter Questions
Problem 3.123PAE: 3.123 Most periodic tables provide molar masses with four or five significant figures for the...
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Use the periodic table to calculate the GFW (molar mass) of aluminum sulfate, Al2(SO4)3 to 5 significant figures. Use the values provided here: Al = 26.981 S = 32.065 O = 15.999 Remember that the atomic weights on the periodic are not given units. As an average, a single atom of Al has a mass of 26.981 amu. One mole of Al atoms has a mass of 26.981 g, or 26.981 g/mol. A chemical formula is the ratio of moles of each element. For example, in H20 there are 2 moles of H and 1 mole of O. Al ( mol)(26.981 g/mol) = S ( mol)(32.065 g/mol) = g ( mol)(15.999 g/mol) = g. g/mol а. 1 b. 2 С. 3 d. 4 е. 5 f. 6 g. 7 h. 8. i. 9 j. 10 k. 12 I. 75.045 m. 150.09 n. 225.135 О. 342.15 р. 26.981 q. 32.065 r. 15.999 S. 53.962 t. 96.195 u. 191.988
Transcribed Image Text:Use the periodic table to calculate the GFW (molar mass) of aluminum sulfate, Al2(SO4)3 to 5 significant figures. Use the values provided here: Al = 26.981 S = 32.065 O = 15.999 Remember that the atomic weights on the periodic are not given units. As an average, a single atom of Al has a mass of 26.981 amu. One mole of Al atoms has a mass of 26.981 g, or 26.981 g/mol. A chemical formula is the ratio of moles of each element. For example, in H20 there are 2 moles of H and 1 mole of O. Al ( mol)(26.981 g/mol) = S ( mol)(32.065 g/mol) = g ( mol)(15.999 g/mol) = g. g/mol а. 1 b. 2 С. 3 d. 4 е. 5 f. 6 g. 7 h. 8. i. 9 j. 10 k. 12 I. 75.045 m. 150.09 n. 225.135 О. 342.15 р. 26.981 q. 32.065 r. 15.999 S. 53.962 t. 96.195 u. 191.988
Use the data from the previous question calculate the % oxygen in Al2(SO4)3 to 5 significant figures. These calculations are based upon mass. The % oxygen represents the mass of oxygen for every 100 g of aluminum sulfate. go % O = -100 = % охygen g AS а. 1 b. 2 С. 3 d. 4 e. 5 f. 6 g. 7 h. 8. i. 9 j. 10 k. 12 I. 75.045 m. 150.09 n. 225.135 0. 342.15 р. 26.981 q. 32.065 r. 15.999 S. 53.962 t. 96.195 u. 191.988 V. 56.113
Transcribed Image Text:Use the data from the previous question calculate the % oxygen in Al2(SO4)3 to 5 significant figures. These calculations are based upon mass. The % oxygen represents the mass of oxygen for every 100 g of aluminum sulfate. go % O = -100 = % охygen g AS а. 1 b. 2 С. 3 d. 4 e. 5 f. 6 g. 7 h. 8. i. 9 j. 10 k. 12 I. 75.045 m. 150.09 n. 225.135 0. 342.15 р. 26.981 q. 32.065 r. 15.999 S. 53.962 t. 96.195 u. 191.988 V. 56.113
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