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You will use Al2(C7H6O2)3, aluminum benzoate, in this assignment. Please adhere to all rules for significant figures and put the appropriate units on each value.
(1) In a list, identify the elements in this compound by symbol and by name. How many of each are present? Include the atomic weight for each element.
(2) Calculate the molecular weight of this substance.
(3) Calculate the molar mass of this substance. (An older term for molar mass is gram-molecular weight.)
(4) Define the chemical term 'mole.' What is the most common abbreviation for the term 'mole?'
(5) Calculate the grams present in (a) 1.00 mol of aluminum benzoate, (b) 0.00500 mole and (c) 1.84 x 10¯5 mole.
(6) Calculate the moles pesent in (a) 253.0 grams of aluminum benzoate and (b) 2.00 grams.
(7) How many molecules are present in 1.00 mole? What is the value of Avogadro’s Number?
(8) How many molecules of aluminum benzoate are present in (a) 0.850 mole and in (b) 4.380 grams?
(9) 4.550 x 1022 molecules of aluminum benzoate are present. How many (a) moles and (b) grams is this?
(10) What is the average mass in grams of one molecule of aluminum benzoate?