Review Constant A sample of unknown gas weighs 2.45 g and occupies 930 mL at 740...
CITIUMVV <Ch 10 HW Exercise 10.78 Review Const A sample of fluorine gas occupies 945 mL at 740 mmHg and 170 °C Part A What is the mass of the sample? Express your answer to two significant figures and include the appropriate units. Value Units Submit Previous Answers Resuest Answer Incorrect; Try Again; 4 attempts remaining Enter your answer using units of mass Provide Feedback
Determine the molar mass of each of the following gases: a) 0.92 g of a gas that occupies 470 mL at 0 ∘C and 1.00 atm (STP). Express your answer to two significant figures and include the appropriate units. b) 1.39 g of a gas that occupies 1.45 L at 0 ∘C and 760 mmHg (STP). Express your answer to three significant figures and include the appropriate units. c) 1.33 g of a gas that occupies 1.50 L at 675...
Determine the molar mass of each of the following gases: a) 0.92 g of a gas that occupies 470 mL at 0 ∘C and 1.00 atm (STP). Express your answer to two significant figures and include the appropriate units. b) 1.39 g of a gas that occupies 1.45 L at 0 ∘C and 760 mmHg (STP). Express your answer to three significant figures and include the appropriate units. c) 1.33 g of a gas that occupies 1.50 L at 675...
If a sample of oxygen gas occupies 40.0 mL at -40 ∘C and 600 mmHg , what is the volume at 40 ∘C and 310 mmHg ? Express your answer to two significant figures and include the appropriate units.
A 0.305-g sample of gas occupies a flask with a total volume of 125 mL at 750. mmHg and 25°C. What is the molar mass of the gas in g/mol?
POST-LABORATORY QUESTIONS (Show your calculations). 1. A sample of gas weighs 3.10 g and occupies a volume of 1.272 ml at 30 °C and 720 mm Hg. What is the molar mass of the gas? 2.3 moles of hydrogen occupy a volume of 67.20 L, at standard temperature and pressure (STP. 0 °C and 760 mmHg). What is the density of hydrogen at STP? 3.2.5 moles of gas, at 1590 mmHg, occupy a volume of 28.00 L. What is the...
1.Carbon monoxide gas reacts with hydrogen gas to form methanol via the following reaction: CO(g)+2H2(g)→CH3OH(g)CO(g)+2H2(g)→CH3OH(g) A 1.65 LL reaction vessel, initially at 305 KK, contains carbon monoxide gas at a partial pressure of 232 mmHg and hydrogen gas at a partial pressure of 395 mmHg. Identify the limiting reactant and determine the theoretical yield of methanol in grams. Express your answer with the appropriate units. 2. What is the pressure in a 12.0-LL cylinder filled with 39.5 g of oxygen...
An unknown sample of a metal weighs 33.01 g and occupies a volume of 4.20 mL. Calculate the density of this metal and identify
Part A A sample of gas of mass 3.90 g occupies a volume of 728 mL at 37 °C and 1.97 atm pressure. What is the molar mass of the gas? IVO AEQ O 2 ? g/mol Submit Request Answer
A 0.271-g sample of a gaseous hydrocarbon (CxHy) occupies 226 mL at 22.0 ºC 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 ±1 of the correct value, with an appropriate number of significant figures. Molar mass: Answer g/mol. Complete combustion of 1.532 g of this gaseous hydrocarbon (CxHy) yields 4.484 g of carbon...