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Gases
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Questions (1,314)
a sample of pcl5 weighing 2.69 placed in 1.0 l flask and completely vaporized at a tem of 250 c the pressur at this tempreture
2 answers
asked by
biran
1,052 views
How many molecules are there in 985 mL of nitrogen at 0.0 degrees C and 1.00x10^-6 mmHg?
3.50 molecules
9 answers
asked by
Anonymous
7,701 views
Assuming air to be a mixture of gasses by volume of 20% oxygen and 80% nitrogen,(Both diatomic gasses), calulate the mass of 1dm
4 answers
asked by
Anonymous666
871 views
The density of hydrogen at STP is 0.09 g/l what is the mass of the sample of hydrogen.
4 answers
asked by
Anonymous
1,476 views
At 298 K, the Henry\'s law constant for oxygen is 0.00130 M/atm. Air is 21.0% oxygen.At 298 K, what is the solubility of oxygen
5 answers
asked by
Colleen
14,365 views
An unknown diatomic gas has a density of 1.250 g/L at STP. What is the identity of the gas? (Enter the formula of the gas. Omit
4 answers
asked by
Lukas
2,037 views
Question: Consider this molecular-level representation of a gas.
There are: 5 orange gas particles 6 blue gas particles 3 green
4 answers
asked by
Claire
4,563 views
Under identical conditions, separate samples of O2 and an unknown gas were allowed to effuse through identical membranes
5 answers
asked by
Peter
9,276 views
A sample of O2(g) is saturated with water vapor at 27 C. The total pressure of the mixture is 772 torr, and the vapor pressure
5 answers
asked by
naseeb
3,619 views
what is the volume occupied by 0.118 mol of helium gas at a pressure of 0.97 atm & temp of 32 C? R= 0.0821 L atm/mol K
4 answers
asked by
Tracey
3,486 views
A 255mL gas sample contains argon and nitrogen at a temperature of 65 degrees celsius. The total pressure of the sample is
5 answers
asked by
Mark
3,711 views
At atmospheric pressure of 1 atm, the partial pressure of oxygen in air is 0.21 atm. At this atmospheric pressure and 25°C,
4 answers
asked by
Anonymous
1,020 views
CO(g) effuses at a rate that is ______ times that of Xe(g) under the same conditions.
5 answers
asked by
Alex
5,644 views
A gas mixture in a 1.55L at 298K container contains 10.0g Ne and 10.0g Ar. Calculate the partial pressure " in atm" of Ne and Ar
5 answers
asked by
Mark
4,095 views
To identify a diatomic gas (X2), a researcher carried out the following experiment: She weighed an empty 5.3-L bulb, then filled
6 answers
asked by
Sam
6,531 views
A 100 L flask contains a mixture of methane and argon gasses at 25 degree C . The mass of argon present is 228 g and the mole
4 answers
asked by
mathew
3,814 views
What volume will 1.216 g of SO2 occupy at 18 degrees celcius and 755 torr?
5 answers
asked by
bob
1,615 views
1.50 liters tank filled with helium at 125 atm is used to fill balloons. The pressure in each balloon is 950 torr and the volume
4 answers
asked by
Alex Yoo
1,701 views
An 89.3 mL sample of "wet" O2 (g) is collected over water at 21.3oC and a barometric pressure of 756 mm Hg(vapor pressure of
5 answers
asked by
Anonymous
2,863 views
air has an average molar mass of 29.o g/mol. The density of air at 0.97 atm and 30. C is
5 answers
asked by
lnkin
6,419 views
A sample of methane (CH4) gas contains a small amount of helium. Calculate the volume percentage of helium if the density of the
5 answers
asked by
Chris
4,274 views
5 orange gas particles
6 blue gas particles 3 green molecules of gas (two particles attached together) If the partial pressure of
4 answers
asked by
Anonymous
11,769 views
If a sample of 23.0 L of NH3 gas at 10 degrees C is heated at constant pressure until it fills a volume of 50.0 L. What is the
5 answers
asked by
Nana
2,504 views
Determine the partial pressure of oxygen collected by water displacement if the water temperature is 20.0
◦ C and the total
5 answers
asked by
Kaitlin
3,984 views
A 1 L flask is filled with 1.40 g of argon at 25 degrees celcius. A sample of ethane vapor is added to the same flask until the
7 answers
asked by
supaflychic101
4,893 views
what is the mass of butane gas, c4h10, that can be held in a 3.00 L container at STP?
5 answers
asked by
tricia
2,585 views
The molecules of which gas have the greatest velocity at 120°C?
A. O2 B. CO2 C. NH3 D. Cl2
5 answers
asked by
Cortney
2,589 views
What pressure (in atm) would be exerted by 76 g of fluorine gas in a 1.50-liter vessel at -37oC
4 answers
asked by
T
2,462 views
A sample of neon effuses from a container in 80 seconds. The same amount of an unknown noble gas requires 163 seconds
Identify
6 answers
asked by
Anonymous
3,852 views
An apartment has a living room whose dimensions are 2.5 m 4.8 m 5.9 m. Assume that the air in the room is composed of 79%
5 answers
asked by
Pierre
3,151 views
In an experiment, you fill a heavy walled 5.00 L flask with methane gas, CH4. If the flask contains 7.13g of methane at 19
5 answers
asked by
Lauren
3,219 views
The mole fraction of nitrogen in air is 0.7808. calculate the partial pressure of N2 in air when the atmospheric pressure is 760
5 answers
asked by
NONO
3,357 views
A sample of Helium occupies 200 L at 30ºC under a pressure of 841 torr. What is the volume it occupies at standard temprature
4 answers
asked by
Victor
1,932 views
A small cylinder of helium gas used for filling balloons has a volume of 2.85L and a pressure of 13300kPa at 25 ∘C.How many
4 answers
asked by
Tyler
1,473 views
A quantity of N2 occupies a volume of 1 L at 290 K and 1.5 atm. The gas expands to a volume of 2.7 L as the result of a change
4 answers
asked by
.
3,023 views
How many atoms of He can a balloon that has a 21 cm diameter hold? The density of Helium is 1.18 g/L.
(Assume the balloon is a
4 answers
asked by
help
1,923 views
A gas mixture composed of helium and argon has a density of 0.846g/L at a 734mmHg and 298 K.
What is the composition of the
4 answers
asked by
Alexa
1,561 views
A person accidentally swallows a drop of liquid oxygen, O2 (l), which has a density of 1.149 g/mL. Assuming the drop has a
4 answers
asked by
Anonymous
3,034 views
Imagine that you have a 7.00L gas tank and a 3.50L gas tank. You need to fill one tank with oxygen and the other with acetylene
9 answers
asked by
De'Brickashaw
9,453 views
The density of gas containing chlorine and oxygen has density of 2.875 g/l at 756.0 mm Hg and 11 degrees Celsius what is the
4 answers
asked by
Anonymous
2,798 views
Oxygen for hospital patients is kept in special tanks, where the oxygen has a pressure of 62.0 atmospheres and a temperature of
5 answers
asked by
Z
2,152 views
which has highest density NH3 Ne H2 CH4
4 answers
asked by
ali
842 views
If a gas effuses 1.618 times faster than Kr (molar mass = 83.8 g/mol) what is the molar
mass of the gas?
4 answers
asked by
Scott
3,635 views
At 25 degrees C and 1 atm gas pressure, the solubility of CO2(g) is 149 mg/100 g water. When air at 25 degrees C and 1 atm is in
4 answers
asked by
Jacqueline
1,510 views
One liter of a gas mixture at 0 degree Celsius and 108.26 kPa contains 250 mg/L of H2S gas. Calculate the partial pressure
4 answers
asked by
Jazmin
1,097 views
Balloon X is filled with the carbon monoxide. Balloon Y is filled to the same volume with carbon dioxide. The balloons are left
4 answers
asked by
Morgan
2,065 views
An apparatus consists of a 4.0 dm3 flask containing nitrogen gas at 25 oC and 803 kPa. It is joined by a valve to a 10.0 dm3
4 answers
asked by
IGNITIOUS
2,098 views
9.60g of a gas X occupies the same volume at 0.30g of hydrogen under the same condition calculate the molar of X (H=1)?
4 answers
asked by
Robotic
699 views
A 0.109g sample of a pure gaseous compound occupies 112ml at 100degrees and 750torr: what is the molecular weight of the
4 answers
asked by
charles
1,937 views
A 3.50L balloon contains 0.178 mol of gas. If 0.094 mol of gas is added to the balloon, what will be the new volume?
7 answers
asked by
Bill
1,718 views
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Parent Categories (29)
Atmosphere
Atmosphere Composition
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