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Unit six: the mole

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# Unit six: the mole - PowerPoint PPT Presentation

Unit six: the mole. STAR SESSION 6. Advanced Mole Calculations. A single particle of a compound has a mass of 2.26x10 -22 grams. Which of the following could be this compound? CCl 4 Ag 2 O ZnCl 2 SnO 2 Similar to page 215 #6. *Don’t forget to study the “mystery metal” problem, too!.

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Unit six: the mole

STAR SESSION 6

Advanced Mole Calculations
• A single particle of a compound has a mass of 2.26x10-22 grams. Which of the following could be this compound?
• CCl4
• Ag2O
• ZnCl2
• SnO2

Similar to page 215 #6.

*Don’t forget to study the “mystery metal” problem, too!

Advanced Mole Calculations
• A single particle of a compound has a mass of 2.26x10-22 grams. Which of the following could be this compound?
• CCl4
• Ag2O
• ZnCl2
• SnO2

Similar to page 215 #6.

ADVANCED MOLE CALCULATIONS
• The compound A2S is 58.91% A. The remainder of the compound is sulfur. What is the identity of element A?

Similar to page 214 #64

ADVANCED Percent composition CALCULATIONS
• The compound A2S is 58.91% A. The remainder of the compound is sulfur. What is the identity of element A?

A = 22.98 grams/mole = Na

Similar to page 214 #64

Advanced empirical & molecular formula Calculations
• A compound consisting of carbon, hydrogen, and oxygen is found to contain 40.00% C and 6.71% H. A 0.0500 mol sample of the compound has a mass of 9.00 g. Determine the molecular formula for the compound.
• C8H16O4
• C6HO8
• C6H14O6
• C6H12O6

Page 215 #10

Hint: Find the molar mass.

Advanced empirical & molecular formula Calculations
• A compound consisting of carbon, hydrogen, and oxygen is found to contain 40.00% C and 6.71% H. A 0.0500 mol sample of the compound has a mass of 9.00 g. Determine the molecular formula for the compound.
• C8H16O4
• C6HO8
• C6H14O6
• C6H12O6

Page 215 #10