what is the molecular weight of a gas if a 21.0g sample has a pressure of...
13-18 please
D Question 13 If the number of moles of gas initially contained in a 2.10 L vessel is tripled, what is the final volume of the gas in liters? 06.30 O 4.20 None of the proposed answers O 8.40 0.525 Question 14 If the volume of a confined gas is quadrupled while its temperature remains constant, what change will be observed? The pressure of the gas will quadruple The average velocity of the molecules will quadruple The density...
What is the molecular weight (in grams per mole) of a gas sample that has a mass of 3.07 g in a 2.248 L flask at a temperature of 27.3 ºC and a pressure of 0.597 atmospheres?
A cylinder of gas has a pressure of the gas is 3.59 atm and the T is -3.60 degree C. A 3.893 L sample was removed from the cylinder with a final pressure of 1076 mm Hg and a temperature of 12.37 degree C. What was the volume of the original sample? A cylinder of gas weighs 4.353 kg which is stored at 20.00 degree C under a pressure of 10.47 atm. A sample of gas at 0.00 degree C...
6. ) A sample of methane gas, CH4, at 322.0 degrees celcius and a pressure of 662 mmHg had a volume of 36.4 L. What would be the volume of the gas at STP 7.) The CO2 gas that was evolved during the fermentation of sugar was collected. After purification its volume was measured as 25.0 L at 22.5 Celcius and 702 mm Hg. How many moles of the CO2 gas were collected ? 8.) Commercially, compressed oxygen is sold...
A sample of a gas has a pressure of 248 mm Hg when the volume is 1.05 L. What is the pressure of the gas when the volume is 3.98 L
Hydrogen gas, H2, and oxygen gas, O2, can be reacted to form liquid water. If 2.00 g hydrogen gas and 17.20 g oxygen gas are reacted in a 1.500 L flask at 25.0 °C, calculate the total gas pressure (atm) in the flask at 25 °C. The vapor pressure of water is 23.8 mm Hg. Stoichiometry is involved in this question. Total gas pressure:
Part A What is the volume (in liters) of 1.00 mole of argon gas that has a pressure of 380 mm Hg and a temperature of 33.0°C? (R=0.0821 L atm/mol K) 0.0661 0.00713 50.2 5.42 none of the above Submit Request Answer
A sample of gas has an initial volume of 3.93 L at a pressure of 709 mm Hg.Part A If the volume of the gas is increased to 5.33 L. what will the pressure be?
a. What is the molecular weight of 3.7 g of an unknown gas that occupies 450 mL at 20.0°C and 2.0 atm? The value of R 0.0821 L atm mol K-1 b. Aluminum and oxygen react to form aluminum oxide. How many L of oxygen at 296 K and 1.4 atm of pressure are necessary to form 3.25 g of aluminum oxide?
1) What is the final pressure (expressed in atm) of a 3.05 L system initially at 724 mm Hg and 298 K that is compressed to a final volume of 2.51 L at 273 K? 1) 2) What is the pressure of a 1.0 L flask containing 0.60% of He at 25°C? (R-0.0821 L atm/mol K) 3) What is the volume of 28.0 g of nitrogen gas at STP? 3) 4) What is the final pressure of a system (atm)...