Mole ConceptMedium
Question
The amount of carbon dioxide evolved upon complete combustion of 116 g of n-butane is (Given: atomic mass in amu $H = 1,C = 12$ and $O = 16$ )
Options
A.176 g
B.362 g
C.352 g
D.322 g
Solution
Sol. [Key Concept: Combustion stoichiometry — CO₂ from n-butane]
$$\begin{matrix} & C_{4}H_{10} + \frac{13}{2}O_{2} \rightarrow 4{CO}_{2} + 5H_{2}O \\ & \ \because 1\text{~}\text{mole}\text{~}C_{4}H_{10}\text{~}\text{produces}\text{~}4\text{~}\text{mole}\text{~}{CO}_{2} \\ & \ \because 58\text{ }gC_{4}H_{10} \equiv 4 \times 44\text{ }g{CO}_{2} \\ & \ \therefore 116\text{ }gC_{4}H_{10} \equiv \frac{4 \times 44}{58} \times 116 = 352\text{ }g \end{matrix}$$
Create a free account to view solution
View Solution FreeMore Mole Concept Questions
Dissolving 120 g of urea (mol. wt. 60) in 1000 g of water gave a solution of density 1.15 g/mL. The molarity of the solu...Out of 1.0 g dioxygen, 1.0 g atomic oxygen and 1.0 g ozone, the maximum number of oxygen atoms are contained in...When 10 mL of ethyl alcohol (density = 0.7893 g mL-1) is mixed with 20 mL of water (density 0.9971 g mL-1) at 25oC, the ...When 200 g of an oleum sample labelled as 109% is mixed with 300 g of another oleum sample labelled as 118%, the new lab...A volume of 10 ml chlorine gas combines with 25 ml of oxygen gas to form 10 ml of a gaseous compound. If all the volumes...