A hydrocarbon gas with the empirical formula CH2 has a density of 1.3 g/L. at 0...
A gaseous compound has the empirical formula CH2. Its density is 0.426 g/L at 0.465 atm and 373 K. What is the molecular formula of the gas? (R = 0.08206 L·atm/mol·K) A) C2H4 B) C3H6 C) C4H8 D) C5H10 E) C6H12
A hydrocarbon gas has a density of 1.18 g/L at 20.°C and 1.00 atm. An analysis gives 85.7% C and 14.3% H. What is the molecular formula?
The empirical formula of a compound is known to be CH2, and its molar mass is 56 g/mol. What is the molecular formula of the compound? C3H20 C4H8 O C₂H4 CH2 O C₃H6
What is the molar mass of a gas that has a density of 2.62 g/L at 2.00 atm and 25.0 degree C? 2.69 g/mol 64.0 g/mol 28.0 g/mol 32.0 g/mol 16.0 g/mol What volume is occupied by 1.00 mol of an ideal gas at 1.00 atm and 0.00degreeC? 27.2 L 15.0 L 22.4 L 22.7 L 22.1 L
Mesitylene, a hydrocarbon found in crude oil, has an empirical formula of C:H, and experimentally determined molecular weight of 121 u. what is its molecular formula? a- CH4 b-CH C- CH2 d-C12H 37) How many chlorine atoms are in 12.2 g of CCI a-4.77 x 102 b-7.34 x 1024 c-1.91 x 1023 d-2.07 x 1023 38) What is the molar mass of glucose CH 206 a- 180.0 g/mol b- 24.0 g/mol c- 72.0 g/mol d-96.0 g/mol 39) The mass in...
A hydrocarbon has an empirical formula C7H8. At 120 oC and 1 atm, helium effuses 4.8 times faster than the hydrocarbon. What is the molecular formula of the hydrocarbon? C7H8 C14H18 C21H24 C3H4
2. An unknown gas has a density of 0.714 g/L at STP. What is the molar mass of the unknown gas? 3. What is the molar mass of a gas if 0.891 liters at 20.0°C and 1.20 atm weighs 3.17 g? 4. Acetylene gas, CH2, reacts with oxygen gas to produce gaseous carbon dioxide and liquid water. Write the balanced equation for this reaction. What volume of CO2 is produced at STP from 5.00 g 02? 5. What is the...
Molecular formula Molecular formula From the formula mass of the empirical formula on the previous page, and the molar mass of the hydrocarbon above, calculate the molecular formula of your hydrocarbon. What is the molecular formula of your hydrocarbon? Show calculation. PBL Report Members Empirical formula 42 477 From the data in page 1 calculate g of co, and g H,O Show calculations and include units ns0a634g 79 Mass of H2O 69.577-68.912 Convert the g of CO2 and g H20,...
1. A gaseous hydrocarbon has a density of 0.1310 g/L at -46.4 °C and 0.04532 bar. Calculate the molar mass of the hydrocarbon. Draw a plausible structure for the hydrocarbon. 2. An electron drops from the 8th energy level to the 4th energy level in a hydrogenic ion. Light with a wavelength of 13.50 nm is emitted. What is the formula for the ion?
What is the density of a gas that has a formula of C3H8 at a pressure of 0.800 atm and a temperature of 27 °C? The MM of C is 12.01 g/mol and the MM of H is 1.01 g/mol. Group of answer choices 0.0159 g/mL 0.698 g/L 15.9 g/L 1.43 g/L More than one of these choices is correct