Question

Liquid hexane (CH,(CH),CHwill react with gaseous oxygen (0,) to produce gaseous carbon dioxide (CO,) and gaseous water (H,O). Suppose 54.3 g of hexane is mixed with 98. g of oxygen. Calculate the minimum mass of hexane that could be left over by the chemical reaction. Round your answer to 2 significant digits

Answer 1

34chaty cheest O2 a, 6CO2 + 7 H2O egg hexane molar mass of hexane = 86.18 g/mol malar mass of O2 = 32 g/mol mass of 19 male O2 = 19 x 32 = 304 g/mol Hence according to the equation 304 g O reacts with = 86. 18 9 hexane 19 O would react with = 86.18 = 0.28349 304 hovane As given Op is 98 9 So 98 g O₂ would react with = 0.2834898 = 27.78 g hexone Where as given herane is 54. 39 So mass of herane that could be left over by the du Chemical reaction = 154.3 - 27.78) - 26.52 ~ 27 g herane 127 g hexane could be left