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18 Dec 2019

Determine the mass( in grams) of 2.42 moles of CO2 AND the number of moles of C8H18 in 128 grams of C8H18.

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31 Dec 2019
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Related questions

The complete combustion of octane, C8H18, a component of gasoline, proceeds as follows:
2 C8H18(l) + 25 O2(g) 16 CO2(g) + 18 H2O(g)

(a) How many moles of O2 are needed to burn 1.50 mol of C8H18?
(b) How many grams of O2 are needed to burn 10.0 g of C8H18?
(c) Octane has a density of 0.692 g/mL at 20 °C. How many grams of O2 are required to burn 15.0 gal of C8H18 (the capacity of an average fuel tank)?
(d) How many grams of CO2 are produced when 15.0 gal of C8H18 are combusted?

The complete combustion of octane, C8H18, a component of gasoline, proceeds as is shown below. 2 C8H18(l) + 25 O2(g) 16 CO2(g) + 18 H2O(l)

(a) How many moles of O2 are needed to burn 1.15 mol of C8H18?

(b) How many grams of O2 are needed to burn 1.40 g of C8H18?

(c) Octane has a density of 0.692 g/mL at 20°C. How many grams of O2 are required to burn 4.35 gal. of C8H18? 1 gal = 3.79 L.

Hi, I need help with chemistry... got a little stuck.

Required: Answer the following questions. Make sure to show all work necessary.

a. How many moles are there in 685 grams of N2O?
b. How many moles are there in 592 grams (about 750 mL) of ethanol, C2H6O?
c. One simple way to represent gasoline is as octane, C8H18. A gallon of octane has a mass
of approximately 2.73 kilograms. How many moles are in one gallon of octane,
C8H18? (Hint: First determine how many grams of octane there are in a gallon)
d. How many moles of CO2 are there in a metric ton (1000 kg) of CO2? (Hint: First convert
from metric tons to grams)

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