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Chapter 3 Stoichiometry: Calculations with Chemical Formulas and Equations Chemistry, The Central Science, 11th edition Theodore L. Brown; H. Eugene LeMay,

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Presentation on theme: "Chapter 3 Stoichiometry: Calculations with Chemical Formulas and Equations Chemistry, The Central Science, 11th edition Theodore L. Brown; H. Eugene LeMay,"— Presentation transcript:

1 Chapter 3 Stoichiometry: Calculations with Chemical Formulas and Equations Chemistry, The Central Science, 11th edition Theodore L. Brown; H. Eugene LeMay, Jr.; Bruce E. Bursten and Catherine J. Murphy Donna Narsavage Heald Siena College Loudonville, NY 2009, Prentice Hall

2 How many oxygen atoms are present in MgSO 4 7 H 2 O? 1.4 oxygen atoms 2.5 oxygen atoms 3.7 oxygen atoms 4.11 oxygen atoms 5.18 oxygen atoms

3 How many oxygen atoms are present in MgSO 4 7 H 2 O? 1.4 oxygen atoms 2.5 oxygen atoms 3.7 oxygen atoms 4.11 oxygen atoms 5.18 oxygen atoms

4 How many sulfur atoms are present in 1.0 mole of Al 2 (SO 4 ) 3 ? 1.1 sulfur atom 2.3 sulfur atoms 3.4 sulfur atoms x sulfur atoms x sulfur atoms

5 How many sulfur atoms are present in 1.0 mole of Al 2 (SO 4 ) 3 ? 1.1 sulfur atom 2.3 sulfur atoms 3.4 sulfur atoms x sulfur atoms x sulfur atoms

6 If you have equal masses of the following metals, which will have the most number of atoms? 1.lithium 2.sodium 3.potassium 4.rubidium 5.calcium An alkali metalCa in H 2 O

7 If you have equal masses of the following metals, which will have the most number of atoms? 1.lithium 2.sodium 3.potassium 4.rubidium 5.calcium An alkali metalCa in H 2 O

8 2 NO (g) + O 2 (g) 2 NO 2 (g) How many moles of oxygen gas are required to react completely with 1.0 mole NO? mol O mol O mol O mol O mol O 2

9 2 NO (g) + O 2 (g) 2 NO 2 (g) How many moles of oxygen gas are required to react completely with 1.0 mole NO? mol O mol O mol O mol O mol O 2

10 1.2.0 mol NO mol NO mol NO mol NO mol NO 2 If 10.0 moles of NO are reacted with 6.0 moles O 2, how many moles NO 2 are produced? 2 NO (g) + O 2 (g) 2 NO 2 (g)

11 1.2.0 mol NO mol NO mol NO mol NO mol NO 2 If 10.0 moles of NO are reacted with 6.0 moles O 2, how many moles NO 2 are produced? 2 NO (g) + O 2 (g) 2 NO 2 (g)

12 If 10.0 moles of CO are reacted with 6.0 moles O 2, how many moles of the excess reagent remain? mol O mol O mol NO mol NO 5.None of the above 2 NO (g) + O 2 (g) 2 NO 2 (g)

13 If 10.0 moles of CO are reacted with 6.0 moles O 2, how many moles of the excess reagent remain? mol O mol O mol NO mol NO 5.None of the above 2 NO (g) + O 2 (g) 2 NO 2 (g)


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