A 23.20-g sample of a gaseous compound containing carbon, oxygen, and chlorine is determined to contain...
A gaseous hydrogen and carbon containing compound is decomposed and found to contain 85.63% C and 14.37% H by mass. The mass of 258 mLof the gas, measured at STP, was found to be 0.646 g. What is the molecular formula of the compound?
Combustion of a 1.025 g sample of a compound containing only carbon, hydrogen and oxygen produced 2.265 g of CO2 and 1.236 g of H2O. What is the empirical and molecular formulas of the sample compound, if its molecular weight has been roughly determined to be 363 g/mol by mass spectrometer?
molecul Sumber of d with excess A gaseous compound of carbon, hydrogen and chlorine had the following composition: C = 24.78% = 2.08 and Cl = 75.14%. A 1.26 g sample of this gas occupies a volume of 435 ml at a pressure of 0.736 atm and temperature of 270C. a) What is the empirical formula of the unknown gas (3 points) show. all setup & work Answer: empirical formula = b) What is the molar mass of the unknow...
A gaseous compound of carbon, hydrogen and chlorine had the following composition: C = 24.78%; H = 2.08 % and Cl = 73.14 %. A 1.26 g sample of this gas occupies a volume of 435 ml. at a pressure of 0.736 atm and temperature of 27°C. a) What is the empirical formula of the unknown gas (3 points) show all setup & work Answer: empirical formula = b) What is the molar mass of the unknow gas (3 points)...
A 14.60 g sample of an unknown compound, composed only of carbon, hydrogen, and oxygen, produced 28.6 g of CO, and 14.6 g of H,O in a combustion analysis. What is the mass percent composition of oxygen of the unknown compound? • Round to one decimal place. Provide your answer below:
a gaseous hydrogen and carbon containing compound is decomposed and found to contain 79.85% C and 20.15% H by mass A.) What is the empirical formula of the compound? I already found the the empirical formula, its CH3 B.) at 43.0 °C and 0.984 atm, the gas occupies a volume of 1.8 L and has a mass of 2.04g. what is the molecular formula of the compound?
A 0.158 g sample of a compound containing the elements carbon, hydrogen, oxygen, and sulphur was burned completely, yielding 0.110 g CO2 and 0.0677 g H2O. In a separate experiment, all the sulphur in another 0.158 g sample was converted to 0.292 g of BaSO4. What is the empirical formula of the unknown compound?
133 g of carbon Gaseous methane (CH) reacts with gaseous oxygen gas (O) to produce gaseous carbon dioxide (CO,) and gaseous water ( HO) dioxide is produced from the reaction of 0.64 g of methane and 4.2 g of oxygen gas, calculate the percent yield of carbon dioxide Round your answer to 2 significant figures. X 5 ?
I have an unknown organic compound containing carbon, hydrogen and oxygen. Combustion analysis of 4.05 g sample of the unknown produced 8.07 g CO2 and 3.76 g H2O. The molar mass of the unknown was determined to be 180 +/- 4 g/mol. What is the molecular formula of the unknown?
a 8.18g sample of a compound contains 2.61g of potassium K, 2.37 g of chlorine, Cl, and oxygen O. calculate the empirical formula