49 Problems 1. Complete the following table: Formula H2O CuCl ALS Moles of each

Question

49 Problems 1. Complete the following table: Formula H2O CuCl ALS Moles of each kind of element C4Hio 2. Write the formula of the following compounds from the number of moles given. The elements are listed in the order in which they appear in the compound. I mole of Carbon and 2 moles of Oxyger 1 mole of Nitrogen and 3 moles of Hydrogen 1 mole of Carbon and 4 moles of Chlorine 2 moles of Iron and 3 moles of Oxygen I mole of Barium, 1 mole of Sulfur, and 4 moles of Oxygen 3. When 2.50 g of Copper metal reacts with molecular Oxygen, the Copper Oxide product of the reaction has a mass of 2.81 g. What is the empirical formula of the Copper Oxide product? When 10.8 g of Silver was reacted with Sulfur, 12.4 grams of product was produced (there was only one product). What is the empirical formula of the product? 4.

Explanation / Answer

Answer:

H2O: 2 moles H and 1 mole oxygen

CuCl2: 1mole Cu and 2 moles Cl

Al2S3: 2 moles Al and 3 moles S

Ba(NO3) 2: 1 mole Ba, 2 moles N and 6 mole O

C4H10: 4 mole C and 10 mole H.

2) Answer:

1mole C and 2 mole O

Formula CO2

1 mole N and 3 mole H

Formula NH3

1 mole C and 4 mole Cl

Formula CCl4

2 mole Fe and 3 mole O

Formula Fe2O3

1 mole Ba and 1 mole S and 4 mole O

Formula BaSO4

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