Question

1. a. The car I drive is a Toyota Prius C; its average mileage rating is 52.0 mpg. Convert this rating into units of kilometers traveled per liter of gasoline consumed. (3 pts) b. Gasoline is a mixture of several hydrocarbon compounds, but let's assume that it consists of only one: octane. If the density of octane is 0.703 g/mL, use the result from part a to calculate how many kilometers the Prius C can travel on one kilogram of gasoline. (2 pts) c. The chemical formula for octane is CH1s. Using this formula, write a balanced equation for the combustion of octane. (2 pts) d. Using the mass-to-moles-to-moles-to-mass process and your balanced equation from partc, determine how many grams of CO2 is produced for every 1000. grams of octane combusted. (6 pts) e. Using the quantity of CO2 produced in part d and the kilometer distance traveled from part b, calculate the grams of CO2 generated by my Prius for every kilometer that I drive it. (2 pts)

Answer 1

a) Average mileage : 52 mpg oo 1 mpg = 0.425144 km/u i mileage in km/l = 22.1075 km/u b) mass of gasoline = 1 kg = 1000 g density - mass vowme in volume = 1000 ml = 1 L 0-703 0.703 Distance travels in I I = 22.1075 x 1 0.703 0.703 = 31.447 km 5) balanced equation Co His + 25 0 8 CO₂ + 9 H₂O d) mass of Cohig = 1000 g . moles of Cp Hip = 1000 . moles of Co, - 8x190.0 (using balanced equation) 1006 114 i mass of co= 8x1000 x 44 114 = 3087.719 g 21.447 km distance nerate 3087.719 1 km distance generate - 3087.719 31.447 98.188 g