Advertisements
Advertisements
Question
The equation for the burning of octane is:
\[\ce{2C8H18 + 25O2 -> 16CO2 + 18H2O}\]
How many moles of carbon dioxide are produced when one mole of octane burns?
Solution
2 moles of C8H18 produces = 16 moles of CO2
∴ 1 mole of C8H18 will produce = `16/2`
= 8 moles of CO2
RELATED QUESTIONS
Calculate the percentage of water of crystallization in CuSO4.5H2O
(H = 1, O = 16, S = 32, Cu = 64)
Correct the following statement :
Equal masses of all gases under identical conditions contain the same number of molecules.
A gas cylinder can hold 1 kg of hydrogen at room temperature and pressure.
(a) Find the number of moles of hydrogen present
(b) What weight of CO2can the cylinder hold under similar conditions of temperature and pressure? (H = 1 C = 12, O = 16)
(c) If the number of molecules of hydrogen in the cylinder is X, calculate the number of CO2 molecules in the cylinder with the same conditions of temperature and pressure.
(d) State the law that helped you to arrive at the above result.
Define or explain the term:
Molar volume
How many grams of HCl are present in 0.1 mole of it?
What mass of Ca will contain the same number of atoms as are present in 3.2 g of S?
Calculate the number of atoms in the following:
52 g of He
How many grams are there in the following?
5 moles of sulphur molecule, S8
The number of atoms present in 0.1 mole of P4 (at. mass = 31) is ______.
Deduce the number of molecules of the following compound in the given quantity.
8.8g carbon dioxide