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How many molecules of acetylene(C₂H₂) would be formed when 10g of calcium carbide(CaC₂) is reacted with water(H₂O)? (Solve with Solution) a) 9.4 x 10²² b) 94 x 10²° c) 9.4 x 10²³ d) 18.8 x 10²² |
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Answer» s reaction is :-CaC₂ + 2H₂O → Ca(OH)₂ + C₂H₂two MOLE of WATER is react with 1 mole CALCIUM carbide to form 1 mole of acetylene.for 10 gm calcium carbide mole of acetylene is =10 G CaC₂ = 0.1560 mol C₂H₂ 64.10 g CaC₂ [ M.W] 1 mole of C₂H₂ contain 6.022×10²³[Avogadro's number] moleculesfor 0.156 mol of C₂H₂ contain = 0.156 x 6.022×10²³ = 0.939 x 10²³ ≈ 9.4 x 10²² |
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