Combustible vapor-air mixtures are flammable over a limited range of concentrations. The minimum volume % of vapor that gives a combustible mixture is called the lower flammable limit (LFL). Generally, the LFL is about half the stoichiometric mixture, the concentration required for complete combustion of the vapor in air. (a) If oxygen is 20.9 vol % of air, estimate the LFL for n-hexane, C6H14. (b) What volume (in mL) of n-hexane (d 5 0.660 g/cm3) is required to produce a flammable mixture of hexane in 1.000 m3 of air at STP?

Q: delete 4. 8. 5. 6. 7. R. P. E. enter H. return B alt MOSISO command option

A: Temperature is constant so  P1V1 +P2V2 = PV

Q: For the reaction, 3 X=Y, If 1.5 moles of Y and 10.5 moles of X are introduced into a 3.00 L flask at…

A: Kc is known as equilibrium constant and it is equal to the ratio of equilibrium concentration of…

Q: Ethylene (CH,CH,) is the starting point for a wide array of industrial chemical syntheses. For…

A:

Q: what is the number of mole of co2 produced when .0200 mol c2h2 burns?

A: A chemical equation can be represented by using symbols and formulas of the participating species.…

Q: If a fuel contains 86% C, 9% H2, 1% S and 4% ash (silica) by mass, determine: (b) (i) the total…

A: SOLUTION : CARBON Mass ratio C + O2 = CO2 12 + 32 = 44 Hence 0.86kg of C need (32/12)x0.86=2.293kg…

Q: Learning Goal: To apply the ideal gas law to problems involving temperature, pressure, volume, and…

A:

Q: The gas in the discharge cell of a laser contains (in mole percent) 11% CO2, 5.3% N2, and 84% He.…

A: We know density can be calculated using the formula - DRT=PM  Where  D=Density(g/L)…

Q: (II) A box of volume V contains n, moles of oxygen (0₂) and n₂ moles of nitrogen (N₂). The partial…

A: Given that   volume = V   number of moles of oxygen gas = n1   number of moles of nitrogen gas = n2…

Q: 5. 2C,H,0, + 150, – 14CO, + 6H,O a) o, to Co, b) C,H,O, to 0, c) co, to H,0

A: Answer :-  The mole-to-mole ratio for the reaction 2C7H6O2 + 15O2 → 14CO2 + 6H2O is  O2 to CO2…

Q: Kinetics & Equilibrium: Predicting relative forward and reverse rates of a reaction in a dynamic…

A: Given reaction,

Q: A gas mixture contains 14.4 mol of NO and 6.25 mol of Br2.(a) Compute the mole fraction of NO in the…

A: a) The mole fraction of a species is defined as the number of moles of that species in the mixture…

Q: 2. The atmospheric temperature at altitudes where jetliners fly is approximately -33°C. Calculate…

A: Answer:Kinetic energy of 1 nitrogen moleculeKinetic energy of 1 mole nitrogen moleculesHere:

Q: Please don't provide handwritten solution .....

A: The objective of this question is to calculate the mole fraction and partial pressure of each gas,…

Q: At 100 kPa and 0 °C, a 5.04 L mixture of methane (CH4) and propane (C3H8) combusts, producing 18.0 g…

A: In this question, we have to Calculate the mole fraction of each gas in the initial mixture.

Q: atm x L 4. The literature value for the ideal gas constant is 0.08206 moles x K Explain why the…

A: We have find out the why the value calculated using experimental data is different from the…

Q: Combustible vapor-air mixtures are flammable over a limitedrange of concentrations. The minimum…

A:

Q: Fertilizer calcium cyanamide reacts with water forming calcium carbonate and releasing ammonia gas…

A:

Q: 2. (a) A mixture of Litt (Os and sand weighing 9.20g is heated. After cooling, the residue composed…

A:

Q: (a) A rigid tank contains 1.60 moles of helium, vwhich can be treated as an ideal gas, at a pressure…

A:

Q: In the preparation of 60 mL Magnesium citrate in the laboratory, you are required to: calculate for…

A: The volume of carbon dioxide produced during the formation of magnesium citrate from the reaction of…

Q: Consider the reaction of a mixture of NaHCO3 and Ca(HCO3)2 with excess HCl. The net ionic reaction…

A: Given that volume of total sample gas = 15.2 L And the condition is STP,  So At STP, the molar…

Q: O number of molecules.

A: Answer: equal volume propane and carbon monoxide at the same temperature and pressure have the…

Q: Wine goes bad soon after opening because the ethanol  CH3CH2OH in it reacts with oxygen gas  O2…

A: Consider the reaction fr the given condition is as follows; Reaction:        CH3CH2OH     +     O2…

Q: A gas mixture contains 4.5 mol Br, and 33.1 mol F,. (a) Compute the mole fraction of Br, in the…

A: Mole fraction is defined as the ratio of the number of moles of the gas to the number of total moles…

Q: One of the first families of rockets used by the American space program was the Redstone family of…

A: Decaborane (B10H14) is highly reactive and flammable. It can also be used as the starting material…

Q: When limestone (solid CaCO₂) is heated, it decomposes into lime (solid CaO) and carbon dioxide gas.…

A: given CaCO3 solid =3.84 kg v= 500L T= 520.0 ;c find Kp

Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.