8. Octane (C2H18) in gasoline reacts with oxygen as shown in the equation below 2CH. + 250,— 1600, + 18110 If one gallon of gasoline contains 995 grams octane, what is the volume of carbon dioxide produced in the combustion of a gallon of gasoline at SIP A 69.7 liters B 170 liters C 1560 liters D 178,000 liters​

If the density of water is 1.0 g/cm3, which of these materials would float in water, based on their densities? check all that apply. aluminum cork iron lead wax

The content of manganese (mn) in steel was determined spectrophotometrically and with the use of the standard addition method. an unknown sample of mn from a digested steel sample gave an absorbance of 0.185 when analyzed spectrophotometrically. when 5.00 ml of solution containing 95.5 ppm mn was added to 50.0 ml of the unknown steel solution (digested sample), the absorbance was 0.248. calculate the concentration, in parts-per-million (ppm), of mn in the digested steel sample solution.

4786 joules of heat are transferred to a 89.0 gramsample of an unknown material, with an initialtemperature of 23.0°c. what is the specific heat of thematerialif the final temperature is 89.5 °c?