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CHAPTERS Practice Problems 6. An unknown gaseous hydrocarbon (compound composed of carbon and thydrogen only) conai...
An unknown gaseous hydrocarbon consists of 85.63% carbon by mass. A 0.100-g sample of the gas...
An unknown gaseous hydrocarbon consists of 85.63% carbon by mass. A 0.100-g sample of the gas occupies a volume of 0.0533 L at STP. What is the identity of the gas? A. C4H8 B. C3H6 C. C2H4 D. C5H10 E. CH2
A gaseous hydrogen and carbon containing compound is decomposed and found to contain 85.63% C and...
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?
molecul Sumber of d with excess A gaseous compound of carbon, hydrogen and chlorine had the...
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...
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)...
Molecular Formula of a Gas 2.41 g of a gaseous compound, comprised of only the elements...
Molecular Formula of a Gas 2.41 g of a gaseous compound, comprised of only the elements carbon and fluorine, is analyzed and found to contain 0.58 g of carbon. A 919-mL sample of the gas has a mass of 4.10 g at STP. Enter the molecular formula of the compound. O (carbon first, fluorine second, e.g. C3F8) Submit Answer Tries 0/5
BONUS Question: (8) A sample of a hydrocarbon compound (contains only carbon and hydrogen) is known...
BONUS Question: (8) A sample of a hydrocarbon compound (contains only carbon and hydrogen) is known to consists of molecules having five carbon atoms. If the density of this hydrocarbon gas at STP conditions is 3.2215 grams/liter, what is the molecular formula for this compound?
a gaseous hydrogen and carbon containing compound is decomposed and found to contain 79.85% C and...
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 gaseous compound composed of carbon nitrogen and hydrogen in a vessel at 380.4 K and...
A gaseous compound composed of carbon nitrogen and hydrogen in a vessel at 380.4 K and 0.928 bar has a density 1.8228 g L-1. By burning a sample of that same gas it is determined that it is composed of 38.67% C and 16.22% H. What is the molecular formula of the compound expressed as a string CxHyNz. Do not use subscript underscores of curly brackets when entering the formula.
Gaseous hydrocarbon A 0.271-9 sample of a gaseous hydrocarbon (CxHy) occupies 117 mL at 22.0°C at...
Gaseous hydrocarbon A 0.271-9 sample of a gaseous hydrocarbon (CxHy) occupies 117 mL at 22.0°C at 735 torr. Calculate the molar mass of this hydrocarbon in g/mol. Express your answer as a number (not scientific notation) without units, for full credit, the last digit of your answer should be within 11 of the correct value, with an appropriate number of significant figures. Molar mass: g/mol. Complete combustion of 1.532 g of this gaseous hydrocarbon (CxHy) yields 4.640 g of carbon...
12) The complete combustion of 0.645 g of a compo und that contains only carbon and...
12) The complete combustion of 0.645 g of a compo und that contains only carbon and hydrogen produces 1008 ml of CO2(g), measured at STP, and 0.945 g of H20. The 0.645 g gas sample occupies 351 ml at 50 c and 0.567 atm. What is the molecular formula of the compound? Setup:
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)...
Molecular Formula of a Gas 2.41 g of a gaseous compound, comprised of only the elements carbon and fluorine, is analyzed and found to contain 0.58 g of carbon. A 919-mL sample of the gas has a mass of 4.10 g at STP. Enter the molecular formula of the compound. O (carbon first, fluorine second, e.g. C3F8) Submit Answer Tries 0/5
BONUS Question: (8) A sample of a hydrocarbon compound (contains only carbon and hydrogen) is known to consists of molecules having five carbon atoms. If the density of this hydrocarbon gas at STP conditions is 3.2215 grams/liter, what is the molecular formula for this compound?
Gaseous hydrocarbon A 0.271-9 sample of a gaseous hydrocarbon (CxHy) occupies 117 mL at 22.0°C at 735 torr. Calculate the molar mass of this hydrocarbon in g/mol. Express your answer as a number (not scientific notation) without units, for full credit, the last digit of your answer should be within 11 of the correct value, with an appropriate number of significant figures. Molar mass: g/mol. Complete combustion of 1.532 g of this gaseous hydrocarbon (CxHy) yields 4.640 g of carbon...
12) The complete combustion of 0.645 g of a compo und that contains only carbon and hydrogen produces 1008 ml of CO2(g), measured at STP, and 0.945 g of H20. The 0.645 g gas sample occupies 351 ml at 50 c and 0.567 atm. What is the molecular formula of the compound? Setup:
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