Question

Liquid hexane will react with gaseous oxygen to produce gaseous carbon dioxide and gaseous water . Suppose 83. g of hexane is mixed with 100. g of oxygen. Calculate the minimum mass of hexane that could be left over by the chemical reaction. Be sure your answer has the correct number of significant digits.

Answer 1

Given, Liquid Hexane react with gaseous oxygen to produce goseous co, and 9egeous H, О. Co, (9) + Нехоо (2) + ox930ч () — Но(9) сен (4) + O, (9) — co, (9) +н,о(9) Balanced equation is: C% Ніч (4) + 19 о, (9) - ScoC9) + 7ңo(9) = 2CH (4)+ 190, (9) — 12co, (9) + (4 19) 2 mole of Hexame reacts will la mole of охудем и рураца (2 шоо of co, ч ма от но. lamole of o₂ 2 mole of cohil required,

Molar mass of Hexane = 6x atomic mass of Carbon + lux atanic mass of Hydrogen = 6х12 + (4х1 = 72 +1° = 8% 3]що , Molar mass of O2 = 32 g) wool 2 mole of Hexane → 19 mode at O₂ required, 25 86 + Нехало -(19х32) Зо Os required, i-e Go8 3 0) ox930 — 172 захало Caube burnt. (оо з 0) oxy904 — 2 2 that е хао Сац махіщаш мляя о ,обро Lчүца (00 Х12- боя с 28. 2 89 ~ 28. 29 3 о. 28-19 so} не као сам ҷу, But 83 g of Hexane is present .: Mexia мa88 о} }ехохе Q- Could be left over (83–28.29) a - 54-71 9