Question

Problem Page Gaseous methane CH4 will react with gaseous oxygen O2 to produce gaseous carbon dioxide CO2 and gaseous water H2O. Suppose 8.2 g of methane is mixed with 16.3 g of oxygen. Calculate the minimum mass of methane that could be left over by the chemical reaction. Round your answer to 2 significant digits.

Answer 1

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Reaction. Chy (9) +20₂18) - 8 - cq (g) + Since. cq (g) +2 10 (1) We ve to find minimum eaction, it mean mass of chy a in limiting reagent Now, use Stoichiometry mole of Chy used mole of a - mole of Chy used = 1 x 16.3 = 0.254 32 - mass of Chy used = more x Meny = 0.259 X 16 - 4.064 g "Initial mass of My taken 8.2g .. mass of chly left = 8.2 - 4.064 = 4.136 g - Yolg