Stoichiometry Project Pd5 3/18/10. Problem If 4.1 grams of Cr is heated with 9.3 grams of Cl 2, what mass of CrCl 3 will be produced? next.

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Presentation transcript:

Stoichiometry Project Pd5 3/18/10

Problem If 4.1 grams of Cr is heated with 9.3 grams of Cl 2, what mass of CrCl 3 will be produced? next

First Step Write out the formula Cr + Cr 2  CrCl 3 2Cr + 3Cr 2  2CrCl 3 3Cr + 3Cr 2  CrCl 3

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Second Step Starting out with 4.1g Cr, set up your first conversion factor.

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Third Step How many grams of CrCl 3 are made with 4.1 grams of Cr? 12.49gCrCl 3 13gCrCl gCrCl 3

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Fourth Step Given 9.3 grams of Cl 2, set up the first part of the equation.

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Fifth Step What comes after ?

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Sixth Step What is the last part of the equation?

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Seventh Step With your equation: What is the final answer? 12.49gCrCl gCrCl gCrCl 3

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Last Step What mass of CrCl 3 is produced from Cr and Cl 2 ? 12.49gCrCl gCrCl gCrCl 3

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If 4.1g of Cr is heated with 9.3g of Cl 2, what mass of CrCl 3 will be produced? grams of CrCl 3