Question

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2 mathrm{c}_{2} mathrm{H}_{5}+50_{2} longrightarrow 4 mathrm{Co}_{2}+2 mathrm{H}_{2} mathrm{O}
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2.mole ( y-c_{2} 1+5 )
1 mole must react wilh ( frac{5}{2} 0 ) z Under S.T.P,
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22 cdot 44 mathrm{L} text { of } mathrm{c}_{2} mathrm{H}_{5} text { . Teacts wilk }(5 / 2) times 22.42 mathrm{n}-mathrm{O}_{2}
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or looce of ( C_{2} mathrm{Hs} ) reacts ( mathrm{willi}left(frac{mathrm{s}}{2}right) times 100 mathrm{cc} )
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250 mathrm{ccot} 02
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But it is given isii has ( 20 % 00 ). hy vollu the aurount minke,
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2 operatorname{sox} frac{4^{-}}{x^{10}}
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# (18) Air contains 20% O, by volume. How many c.c. of air will be required for oxidation of 100 cc of acetylene (CH))? (1) 1064 cc (2) 212.8 cc 3C2Hg 1502- 400, (3) 500 cc (4) 1250 cc 91632 Died the elemen tet TDI required to root no mala farina

Solution