276 I CHAPTER 8 Quantities in Chemical Reactions 37. Consider the balanced equat

Question

276 I CHAPTER 8 Quantities in Chemical Reactions 37. Consider the balanced equation for the combustion of 38 methane, a component of natural gas: CH(g) +202(8) CO (8) + 2 HO(g) Complete the table with the appropriate masses of reac tants and products. If the mass of a reactant is provided, fill in the mass of other reactants required to completely react with the given mass, as well as the mass of each prod uct formed. If the mass of a product is provided, fill in the required masses of each reactant to make that amount of product, as well as the mass of the other product that forms Mass CH4 Mass O2Mass CO2 Mass H20 2.57 g 22.32 g 11.32 g 2.94 g 3.18 kg 2.35 × 103 kg

Explanation / Answer

54)From the equation the stoichiometric relation between reactants and products is

1mol CH4 ----2 moles O2 --------- 1mol CO2 ----------1 mol H2O

16g ----------2x32 g O2 -----------44g of CO2 ---------18g H2O

Ccaluculating using these quantities

6 8.54x103kg 3.42x103kg   2.35x103kg 9.61x103kg

s.No. mass of CH4 mass of O2 mass of CO2 mass of H2O 1 0.6425 g 2.57g 1.767g 0.722g 2 22.32g 89.28g 61.38g 25.11g 3 10.06g 40.25g 27.67g 11.32g 4 1.069 4.276g 2.94g 1.027g 5 3.18kg 12.72kg 8.745kg 3.58kg

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