Question

Use the following atomic weights and quantities to calculate the theoretical yield of hydrogen gas, in liters, that should be given off by the reaction of phenylacetic acid, iron, and heat. Assume that at our elevation and laboratory temperature there are 22 liters per mole of an ideal gas. Balance the equation and remember that your yield must be based on the limiting reagent, and that grams must be converted to moles. Filling out most of the chart will help. Give only two significant digits in your answer. If after rounding the answer is a whole number, do not include a decimal point. C 12, H 1, Fe = 56, O = 16 phenylacetic acid iron hydrogen gas formula formula weight 581.091 249.455 grams moles theoretical yield (liters) ? Answer: 1

Answer 1

45 Phenylacetie acid is monoprobe acid, so a moles Phenylacetic acid to reach with Imole fe to give Imole Hz. The balance equation of the reachon 2 Phenylacetic acid + lisson 1 hydrogen Formula 2 PhCH₂ Coot + 1 F 1 H2 136.15 Formula weboat of Pheh, cool = 136.15 g/mol Formula weight of Fe = 55,8450 g/mol 50 581,091 g of phcHz Cooh = 581,091 moles of pick.com = 4268 moles of phCh Cony 249.455 g of te= 249.455 moles of te 55.8450 = 4.467 moles offe. From the balance equation we observed that 2 moles PhCH2 Cool will react with Imole re So 4.268 moles of phea, Coot will react with 4.268x1 moles of te = 2.134 moles of te Here the limitting reagent is phCho CooH. From given balance equation we observed that a moles of PheAr CoolH will result i mole of H2. So 4.268 moles of phCH COOH wlu give 2.134 moles H2 At laboratory temperature 1 mole 22 liters So at laboratory temperature 2:134 moles = 46.948 Likes 50 the theoretica yield of produced H₂ = [47 liters (up to two significant