If the Mercury in a barometer raises 22.1 centimeters due to a change in ambient pressure, what is the corresponding change in pressure in atm?

Q: If the mercury in a barometer raises 28.2 centimeters due to a change in ambient pressure, what is…

A: Pressure can be easily converted from one to another unit by use of dimensional analysis. For this…

Q: In an experiment in a general chemistry laboratory, a student collected a sample of a gas over…

A: The ideal gas equation is given by,                                                PV = nRT Where, P…

Q: A gas of unknown molecular mass was allowed to effuse through a small opening under…

A: According to Graham's law of effusion: The rate of effusion is also inversely proportional to the…

Q: A mixture of gases contains 0.310 mol CH4, 0.250 mol C2H6, and 0.300 mol C3H8. The total pressure is…

A: According to the Dalton’s law of partial pressure; if the total pressure and the mole fraction of…

Q: If 42.0 g  of O2 and 6.6 g  of CO2 are placed in a 5.6 L  container at 20 oC , what is the pressure…

A: Dalton's law: Dalton's law of partial pressures states that in a mixture of non-reacting gases, the…

Q: A 14.62 mol sample of argon gas at 27.58 °C occupies 28.68 L. What is the pressure in kPa? Provide…

A: Pressure of argon gas is calculated using ideal gas equation PV=nRT.

Q: If 34.0 L of a gas is collected at 19 Celcius and 265 kPa, what is its volume at STP?

A: Volume of gas at STP = 83.03 LitreExplanation:Step 1:- Given Temperature(T) = 19 °C Volume( V ) =…

Q: Calculate the density of sulfur hexafluoride gas at 428 torr and 31 °C

A: Given: Pressure = 428 torr = 428760atm= 0.563 atm temperature = 31oC + 273 = 304 K formula used : d…

Q: Illustrate the features of Partial Pressure of Gases?

A: If a mixture of gas is taken in a system then, each gas will exert a force and this individual force…

Q: A sample of gas at 840.9 mmHg and occupying a volume of 13.84 L is transferred to a smaller…

A: Boyle's law It states that at a given temperature and composition pressure of any gas is inversely…

Q: A sample of Helium gas is observed to effuse through a pourous barrier in 5.26 minutes. Under the…

A: Given, effusion time He gas =5.26 minuteseffusion time of unknown gas =17.1 minutesboth the gas has…

Q: A 9.60 L container holds a mixture of two gases, gas A and gas B, at 45 °C. The partial pressures of…

A: Here we are required to find the total pressure of the system .

Q: 132.0 g of chlorine gas (Cl2) and 24.0 g of helium (He) are mixed in a container with a total…

A: Given,  Mass of. Cl2 = 132 g Molar mass of Cl2 = 71 g/mol Moles = mass/MM     = 132/71   = 1.86 mol…

Q: The mass of an evacuated 260 mL flask is 143.217 g. The mass of the flask filled with 268 torr of an…

A: The objective of this question is to calculate the molar mass of an unknown gas given the mass of an…

Q: When methane is burned in oxygen, carbon dioxide and water are formed. When 8.00 L of methane at 125…

A: The chemical equation for combustion of methane is: CH4(g)+2O2(g)→CO2(g)+2H2O(g)    -------(1)

Q: A student reads a barometer in the laboratory and finds the atmospheric pressure to be 793.6 mmHg.…

A: Given : Pressure= 793.6 mmHg To find: The conversion of pressure into atmospheres.

Q: A typical barometric pressure in Kansas City is 744 torr. What is this pressure in atmospheres, in…

A:

Q: Chlorine pentafluoride gas is collected at 9.0°C in an evacuated flask with a measured volume of…

A: Given :-  pressure of gas = 0.410 atm  volume occupied by gas = 5.0 L  temperature = 9.0°C  To…

Q: 103.0 g of chlorine gas (Cl2) and 23.0 g of helium (He) are mixed in a container with a total…

A:

Q: A mixture contains O2 at 700. torr pressure, F2 at 900. torr pressure, and Cl2 at 400. torr…

A: Given that, Pressure of O2=700 torr pressure of F2=900 torr pressure of Cl2=400torr then,

Q: If 19.91 g of CO2 is enclosed in a 1.98 L container at 60.5 °C, what pressure is it exerting on the…

A:

Q: Hydrogen gas, oxygen gas, and water vapor are collected in eudiometer. The eudiometer contains…

A:

Q: A 17.31 mol sample of argon gas at 30.40° C occupies 20.20 L. What

A: P V  = n R  T    -----(1)   where  P = pressure of gas  = ? atm  V = volume of a gas = 20.20 L  n…

Q: A container holds a mixture of argon and nitrogen with a total pressure of 6.5 kPa. If the partial…

A:

Q: A porous container is filled with 5.00 atm of hydrogen gas. After 2.00 hr the pressure decreased to…

A:

Q: A volume of 0.70 L of air at 37 ° C is expelled from the lungs into cold surroundings at  4.9 ° C.…

A: Given V1 = 0.7 L T1 = 37°C = 37+273 = 310°K V2 = T2 = 4.9°C = 273+4.9 = 277.9°K

Q: The mass of an evacuated 255 mL flask is 143.187 g. The mass of the flask filled with 267 torr of an…

A:

Q: We find that a mass of 0.896 g of a gaseous compound, containing only nitrogen and oxygen, occupy a…

A:

Q: A sample of gas at 879.6 mmHg and occupying a volume of 14.39 L is transferred to a large container…

A: The given data: The initial pressure of the gas = 879.6 mmHg 1 mmHg = 0.133322 kPa 879.6 mmHg =…

Q: A  4.52 g sample of nitrogen gas, N2(g), is held in a 3.00 L gas flask at 298 K. Calculate the…

A: The ideal gas equation is PV = nRT. Where P is the pressure, V is the volume, n is the number of…

Q: A sample of gas has a volume of 2.50 L at 916 kPa and 75.0 °C. What is the pressure (in atm) of the…

A: Given:  P1 = initial pressure of gas = 916 kPa V1 = initial volume of gas = 2.50 L T1 = initial…

Q: Convert 715.4mmHg into units of atm.  Give your answer to the correct number of significant…

A: 1 mm Hg  = 0.0013 atm.

Q: At a certain temperature 65.2 mL of air, which is approximately 78% nitrogen, 21% oxygen and 1%…

A: Given : Initial volume of air = 65.2 mL Initial pressure of air = 105.3 KPa And final volume of air…

Q: The temperature of a sample of SF6 is changed without changing its volume, causing a change in…

A: We are given, P1 = 788.38 kPa P2 =331.54 kPa T1 = 44.27 K The initial and final pressure with…

Q: When methane is burned in oxygen, carbon dioxide and water are formed. When 8.00 L of methane at 125…

A: It is given that methane gas is burned in oxygen to release carbon dioxide and water, and the…

Q: A tank contains 12 moles of a mixture of neon, krypton, and radon at 300. kPa. If there are two…

A:

Q: A student collects 122. mL of hydrogen gas at 23.8 °C. The pressure of the hydrogen gas was…

A:

Q: The temperature of a 4.396 L sample of sulfur dioxide is changed, causing a change in pressure from…

A:

Q: A sample of CO2 occupies a volume of 14.87 liters at 140.5 kPa. What pressure in kPa would the gas…

A:

Q: A sample of gas has a volume of 2.50 L at 781 kPa and 75.0 °C. What is the pressure (in atm) of the…

A: Given:P1 = 781 kPa = V1 = 2.50 LT1 = 75.0 oC = (75.0 + 273.15) K = 348.15 KV2 = 3.75 LT2 = 25.0 oC =…

Q: A sample of gas has a volume of 2.50 L at 536 kPa and 75.0 °C. What is the pressure (in atm) of the…

A: For the phase change of the ideal gas the temperature, pressure, and volume of the initial state and…

Q: A sample of 5.22 grams of xenon gas occupies a 500. mL container with a pressure of 565 kPa. What’s…

A: Given: Mass o Xenon = 5.22g Volume= 500 mL= 0.500L Pressure = 565 kPa = 5.59 atm To find: The…

Q: 2. A sample of helium occupies a volume of 2.5 L at a pressure of 525 kPa. If the temperature of the…

A: Suppose the given helium gas is an ideal gas. If temperature of the gas is kept constant new volume…

Q: A sample of gas has a volume of 2.50 L at 651 kPa and 75.0 °C. What is the pressure (in atm) of the…

A: Answer:When number of moles of the gas is constant then ideal gas law for a gas is:Here:

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.