To neutralize the limiting monobasic carboxylic acid weighing 13.8 g, 120 g of a 10% sodium hydroxide solution
| December 8, 2020 | education
To neutralize the limiting monobasic carboxylic acid weighing 13.8 g, 120 g of a 10% sodium hydroxide solution was required. Determine the acid formula.
CnH (2n) O2 + NaOH -> CnH (2n-1) O2Na + 0.5 H2 m () NaOH = 120 * 0.1 = 12 grams n (NaOH) = 12/40 = 0.3 mol = n ( acid) M () = 13.8 / 0.3 = 46 grams / mol 14n + 32 = 46 14n = 14 n = 1 HCOOH formic acid (methane).
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