Question

- Percent yield of chemical reactions Gaseous ethane (CH,CH,) reacts with gaseous oxygen gas (0) to produce gaseous carbon dioxide (CO,) and gaseous water (HO). If 5.01 g of water is produced from the reaction of 20.7 g of ethane and 24.7 g of oxygen gas, calculate the percent yield of water, Round your answer to 3 significant figures. XI ?
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Answer 1

CHACHz CH₂ CH3 - 70g 2017 200g + 3H₂0 224.79 30 Moles of C₂ CH2 : 20.7 0.69 modes moles of O2 = 24.7 = 0.771 modes I moles of Og gives - 3 males of h₂o I male give - 3x2 males of ho 0.771 mole give 3 X2 X 0.77 male. = 0.66 moles of H₂O It should give = 0.66X18 - 11.88 g water