A helium balloon was partially filled with 8.00 x 103 ft3 of helium when the atmospheric pressure was 0.98 atm and the temperature was 23 Celsius. The balloon rose to altitude where the atmospheric pressure was 400. Torr and the temperature was 5.3 Celsius. what volume did the helium occupy at this altitude ?

Q: If a sample of O2 gas has a pressure at 15.00 °C of 112,000 Pa, what is its pressure a.In units of…

A: Given that the pressure of oxygen gas at 150C is 112,000 Pa.(a) 1 atm = 101325 Pa1 Pa = 1 / 101325 =…

Q: What volume is occupied by 0.118 mol of helium gas at a pressure of 0.97 atm and a temperature of…

A: The volume occupied by the helium gas can be calculated by the ideal gas equation as follow: In…

Q: If 1.47x10^-3 mol of argon occupies a 75.0-mL container at 26°C, what is the pressure (in torr)?

A: The ideal gas equation is PV= nRT Where,  P= pressure (atm) V= volume (L) R= Universal Gas Constant…

Q: If a sample of gas at constant pressure has a volume of 441 mL at 36.5 °C, what will its volume be…

A: Given, Initial Volume = 441 mL  Initial Temperature = 36.5°C  Final temperature = 77.6°C  Final…

Q: At 30oC, a gas cylinder containing nitrogen has an internal volume and pressure of 58.5 L and 1.75 *…

A: All matter can be classified as solid, liquid and gases mainly. In these physical states of matter,…

Q: If a gaseous mixture is made of 2.41g of He and 2.79g of Ne in an evacuated 1.04-L container at 25…

A: The volume of a container is 1.04 L. The given weight of He is 2.41 g.The given weight of Ne is 2.79…

Q: Consider a 1.53-L sample of gaseous SO2 at a pressure of 5.6 x 103Pa. If the pressure is changed to…

A: At constant temperature: P1V1 = P2V2 P1 = initial pressure; V1 = initial volume; P2 = final pressure…

Q: If the balloon described in Question 6.44 is released into the air and rises to an altitude of…

A:

Q: If a balloon at 275 kelvins decreases in volume from 3.5 liters to 3.55 liters, what will its new…

A: The new temperature has to be calculated, Given: V1=3.5 L V2=3.55 L T1=275 K

Q: If 320 mL of nitrogen at 34.6 oC and 641 torr is allowed to expand to 810 mL and 572 torr, what is…

A: Given, nitrogen gas different conditionsinitial pressure Pi =641 torrinitial volume Vi =320…

Q: A large tank is filled with 125 mol O₂ to a pressure of 2245 torr at 25.0 °C. What is the volume (in…

A: The ideal gas equation is  PV = nRT  P = pressure  V = volume  n = moles of gas  R = gas constant =…

Q: What volume is occupied by 12.5 g of argon gas at a pressure of 1.05 atm and a temperature of 322 K?…

A: Given: volume of Ar = 12.5 g pressure of Ar = 1.05 atm temperature of Ar = 322 K volume of He =…

Q: a scuba diver exhales 1.85 L of air while swimming at a depth of 65.70 m where the sum of…

A:

Q: Chlorine can be prepared in the laboratory by the reaction of manganese dioxide with hydrochloric…

A:

Q: the oxygen gas emitted from an aquatic plant during photosynthesis is collected over water at a…

A: Answer :-  pOxygen = 720.2 (mmHg) The partial pressure of the oxygen gas = 720.2 mmHg…

Q: 50.0 g

A: Moles of propane = ( mass / molar mass )  Moles of propane = ( 50.0g / 44.1gmol-1 )  Moles of…

Q: A sample of oxygen gas initially at 373 K was heated to 427 K. If the volume of the oxygen gas…

A: Given that, pressure is held constant. Volume and temperature are changing.

Q: If your laboratory conditions were 744.4 torr and the volume of your apparatus was determined to be…

A: Volume of hydrogen gas,V= 164 mL = 0.164 LPressure at hydrogen gas collected= 744.4 mmHg = 0.9794…

Q: The atmospheric pressure on Mount Logan in the Yukon is 520. mbar. What is the pressure in torr?…

A: The given unit conversion can be done by using following relation: 1 bar = 750.062 torr

Q: What is the mass of neon that exerts a pressure of 720. mmHg, with a temperature of -15.0 °C, when…

A: Neon is an ideal gas. To get the mass of neon, use ideal gas equation. Ideal gas equation…

Q: A barometer reading gives a pressure of 756 mmHg. What is this value in units of atm?

A: Given Value of pressure reading in terms of mmHg as 756 mmHg

Q: 2. What mass of chlorine gas, Cl2 in grams, is contained in a 10.0 L tank at 27°C and 3.50 atm of…

A: Using ideal gas equation PV=nRT ,we can find mass of chlorine gas produce.

Q: What is the density of argon gas at a pressure of 312 mmHg and a temperature of 17 °C?

A:

Q: If 0.370 L of neon gas is collected over water at a temperature of 60°C and a pressure of 760 torr,…

A: GIVEN: The volume of Neon gas collected over water= 0.370 L Temperature =60°C  Pressure = 760 torr…

Q: A barometer reading gives a pressure of 761 mmHg. What is this value in units of atm?

A: A barometer reading in mmHg scale which is to be converted into atm units.

Q: What volume is occupied by 8.6 g of nitrogen gas, N2, at 23°C and 1.15 atm pressure?

A:

Q: A helium balloon at sea level has a volume of 2.10 L at 0.998 atm and 36.1oC. If it is released and…

A: We have given that  Initial volume of He gas= V1 = 2.10L Initial pressure of He gas=P1 = 0.998atm…

Q: A sample of hydrogen gas occupies a volume of 9.15L at 55.0 degrees Celsius and 378 torr. If the…

A: Given that: volume of gas, V1 =  9.15 L temperature, T1 = 55.0 oC = 55.0 + 273= 328 K pressure, P1…

Q: When a 222.3 mL sample of nitrogen is kept at a constant temperature of 5.0 °C, it has a pressure of…

A: Given data, Initial volume (V1) = 222.3 mL = 0.2223 L Temperature = 5oC Initial pressure (P1) =…

Q: What is the density of neon gas at a pressure of 785 torr and a temperature of 35ºC?

A: Molar mass of Neon(Ne)= 20.1797 g/mol Provided temperature = 35°C Or, Provided temperature = (273.15…

Q: A sample of gas at 911.9 mmHg and occupying a volume of 13.20 L has a decrease in pressure to 98.94…

A: We have to calculate the new volume.

Q: What volume, in mL, would 1.00 grams of N2(g) occupy at a temperature of 18.5 oC and a pressure of…

A: To calculate the Volume required by N2 (g) , we would use Ideal gas equation.  PV = nRT

Q: To what temperature must a balloon initially at 25 degrees Celsius and 2.00 L, be heated in order to…

A: Initial temperature T1 =25°C                            T1 = (25+273)K…

Q: If 8.00 g of gas occupies 11.2 L at 20 degrees Celsius and 0.25 atm, what is the molar mass of the…

A: Given data - mass = 8 g. Pressure = P = 0.25 atm. volume = V= 11.2 L = 0.0112 ml. gas constant = R =…

Q: A chemist vaporizes a liquid compound and determines its density to be 1.585 g/Lat 90.0 °C and 753…

A: Given density of liquid vapour is 1.585 g/L. Given temperature is 90.0° C. Given pressure is 753…

Q: You fill a balloon with helium gas to a volume of 3.68 L at 23°C and 789 mmHg. What would the volume…

A:

Q: If the temperature of 179.6 L of a gas at 64.9 C falls by 7.2 C, what is the new volume of the gas…

A: We know, at constant pressure; V1 / T1 = V2 / T2 where, V1 = initial volume T1 = initial temperature…

Q: f the volume of the original sample in Part A (P1 = 832 torr , V1 = 26.0 L ) changes to 60.0 L ,…

A: Given : P1 = 832 torr , V1 = 26.0 L  P2 =? , V1 = 60.0 L

Q: At 741 torr and 44 °C, 7.10 g of a gas occupy a volume of 5.40 L. What is the molar mass of the gas?

A: Using the ideal gas equation, given the pressure, temperature, mass and volume of the gas, where R…

Q: 238.15L of gas at 841.5 torr and 85.1°C is heated until the temperature reaches 134.1°C.  and the…

A: According to the ideal gas law, the volume of a gas is directly proportional to the number of moles…

Q: What is the pressure in the room, if the 275 ml flask contains 46.2 grams of oxygen at 88.5.F, and…

A: We can apply ideal gas equation here, That is, PV = nRT Where, P = pressure inside flask V = volume…

Q: 0.361 g of an unknown liquid occupied a volume of 250.0 mL at 758 mm Hg pressure and 100 °C. What is…

A:

Q: What is the new volume (in L) of an 34.7 L sample of carbon monoxide, CO, if the pressure changed…

A: In accordance with Boyle's law, the pressure of the gas varies inversely with the volume of the gas,…

Q: What is the molar mass of a gas if 0.282 g of the gas occupies a volume of 250 mL at a temperature…

A:

Q: What is the density of ammonia gas in a 4.32 L container at 837 torr and 45.0 degrees Celsius?

A:

Q: What must be the new volume of a sample of nitrogen (in L) if 2.89 L at 742 torr and 23.6 °C is…

A: The final volume of the gas can be measured by using the combined gas law. The combined gas law is:…

Q: If the density of a gas is 1.2 g/L at 745 mmHg and 23.5◦C, what is the molar mass of the gas?

A: An ideal gas equation is derived from the combination of Charle's law, Boyle's law, and Avogadro…

Q: A given volume of oxygen, O2, required 62.0 seconds to effuse from a hole in a chamber. Under the…

A: The formula which relates time to effuse for a gas and molecular mass is shown below: Time for…

Q: In the laboratory, a chemist generated hydrogen gas via the electrolysis of water. The chemist…

A: 1 torr = 0.001 atm Therefore, 740 torr = 0.740 atm

Q: Question is attached

A: Given information, P1 = 336 torr,   V1 = 7.92 L ,   T1= 52.0°C = (273 + 52) K = 325 K. P2 =?,  V2…

Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.