Question
In: Chemistry
An unknown gaseous hydrocarbon contains 85.63 % carbon. If its density is 0.488 g/L at 0.355...
An unknown gaseous hydrocarbon contains 85.63 % carbon. If its density is 0.488 g/L at 0.355 atm and 100°C, what is the molecular formula of the gas?
Solutions
queen_honey_blossom answered 2 years agoRelated Solutions
A pure gas contains 81.71% carbon and 18.29% hydrogen by mass. Its density is 1.97 g/L
A pure gas contains 81.71% carbon and 18.29% hydrogen by mass.
Its density is 1.97 g/L
A bomb calorimeter is filled with 9 atm of an unknown gaseous hydrocarbon fuel and an...
A bomb calorimeter is filled with 9 atm of an unknown gaseous
hydrocarbon fuel and an excess of oxygen gas at a temperature of
20.5 °C. The bomb calorimeter has a volume of 4.1 L and a heat
capacity of 7.64 kJ/K. After the combustion reaction is complete
the final temperature of the calorimeter is found to be 333.3 °C.
Answer the following questions based on this information.
(a) What amount of heat in kJ was released from the combustion...
the density of a gaseous fluoride of phosphorus is 3.93 g/l at stp. calculate the molar...
the density of a gaseous fluoride of phosphorus is 3.93 g/l at
stp. calculate the molar mass of the fluoride and determine its
molecular formula
The density of a gaseous compound is 2.06 g/L at STP. What is the most likely...
The density of a gaseous compound is 2.06 g/L at STP. What is
the most likely formula of this gas?
Ionization engergy of Na: 496 kj/mol
Electron Affinity of F: 328 kJ/mol
Energy to vaporize Na: 108 kJ/mol
F2 bond energy: 160 kJ/mol
Energy Change for the reaction:
Na (s) + 1/2F2 (g) = NaF (s) ; DeltaH
= -575K
An unknown gas contains 85.63% carbon and 14.37% hydrogen by mass. if 2.00 L of the...
An unknown gas contains 85.63% carbon and 14.37% hydrogen by
mass. if 2.00 L of the gas at 298 K and 0.420 atm and weights 1.926
g
A) What is the molar mass of the unknown gas?
B) What is the empirical formula of the gas?
C) What is the molecular formula of the gas?
A gaseous mixture of CO and CO2 has a density of 0.9967 g/L at 14.24°C and...
A gaseous mixture of CO and CO2 has a density of 0.9967 g/L at
14.24°C and 490.1 mm Hg. What is the mass percent of CO?
9a) A sample of an unknown gas is found to have a density of 1.07 g/L...
9a) A sample of an unknown gas is found to have a density of
1.07 g/L at a pressure of 0.783
atm and a temperature of 56 °C. Assume ideal
behavior. The molar mass of the unknown gas is ____g/mol.
b) A sample of oxygen gas has a density of
_____g/L at a pressure of 1.20 atm and a
temperature of 38 °C. Assume ideal behavior.
c) A mixture of xenon and
oxygen gases, in a 6.72 L flask
at...
Cumene, a hydrocarbon, is 89.94% carbon, and its molar mass is 120.2 g/mol. What are the...
Cumene, a hydrocarbon,
is 89.94% carbon, and its molar mass is 120.2 g/mol.
What are the
a)
empirical and b) molecular
formulas for Cumene? Show your work
an unkown hydrocarbon contain carbon hydrogen and oxygen combustion of 1.6 g of the hydrocarbon produces...
an unkown hydrocarbon contain carbon hydrogen and oxygen
combustion of 1.6 g of the hydrocarbon produces 1.0286 g h2o and
3.7681 g co2. what is the empiral formula of this compound?
A 1.20-L contains 1.10 g of an unknown gas at STP . what is the molecular...
A 1.20-L contains 1.10 g of an unknown gas at STP .
what is the molecular weight of the unknown gas?
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