In 1783, Jacques Charles launched his first balloon filled with hydrogen gas, which he chose because it was lighter than air. The balloon, which had a volume of 31 000 L at STP, reached an altitude of 1000 m, where the pressure was 663 mmHg and the temperature was -3 ∘C.     What was the volume, in liters, of the balloon at these conditions?   Express your answer using two significant figures.

Q: If 0.130 mol of N2 gas effuses through a small hole over the course of one hour, calculate the…

A: A question based on effusion, which is to be accomplished.

Q: A sample of 30.0 mL of krypton gas, Kr, is at 756 mm Hg and 25.0°C. What is the new volume if the…

A: Given data is as follows:     Initial volume of the gas V1=30.0 mL Initial pressure P1=756 mm Hg…

Q: Copper reacts with nitric acid according to the following equation. Cu(s)  +  4 HNO3(aq)  →…

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Q: A given mass of a gas occupies 13200 cm3 at 28°C. What volume will it occupy if the temperature is…

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Q: What is the molar mass of air, measured at 25 ̊C, 770 mm Hg? The density of the air under these…

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Q: The complete combustion of methane, CH4, can be represented by the equation: CH4 (g) + 2 O2 (g) --->…

A: At STP molar volume of an ideal gas is 22.4 L.

Q: What volume does 2.7 grams of NH3 (g) occupy if the pressure is 740mmHG and the temperature is 45…

A: We are provided with the mass, the pressure of the ammonia gas, and the temperature is 45 degrees C.…

Q: Hydrogen was generated using aluminum metal and hydrochloric acid, according to the following…

A: 1mol of Al has mass of 26.98 g.772.5 torr = 1.0164 atm23.2+ 273K= 296.2KThe amount of Al is 5.005 g…

Q: Sample of oxygen, at 25°C, occupies a volume of 5.40 X 10" milliliters (mL) at 1.42 atm pressure.…

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Q: What is the density of ammonia gas, NH3 , at 31°C and 751 mmHg? Obtain the density in grams per…

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Q: elemental gas has a mass of 10.3 grams. If the volume is 58.4 L and pressure is 758 torr at a…

A: Mass=10.3g Volume = 58.4 L Pressure = 758 torr = 758 / 760 = 0.9974 atm ( 1 atm = 760 torr)…

Q: An expandable weather balloon reached a height at which its volume was 24.5 L, the temperature was…

A: Given: Temperature T1 = 371 K Volume V1 = 24.5 L. Pressure P1 = 775 torr = 1.02 atm. Pressure P2 =…

Q: Four balloons, each with a mass of 10.0 g, are inflated to a volume of 20.0 L, each with a different…

A: Since density = mass of gas / volume of gas  And since mass and volume of all the gas given are 10 g…

Q: f the rms speed of an oxygen molecule at a particular temperature is  4.28x104cm/s, what is the rms…

A: Step : 1           What is the rms speed of an NH3 molecule at the same temperature?

Q: What is the new pressure in mmHg of hydrogen gas if it was heated to 77 degree Celsius at constant…

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Q: A sample of ideal gas at room temperature occupies a volume of 15.0 L at a pressure of 752 torr. If…

A: Given, Note: 760 torr = 1 atm Initially: Pressure of a gas (P1) = 752 torr = 0.989 atm Volume of a…

Q: 1. A helium-filled balloon has a volume of 2.75 L at 20. °C. The volume of the balloon decrease to…

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Q: 9) The temperature of a sample of N2 at 4.9701 atm is changed, causing a change in volume from…

A: Given  Initial Pressure (P1)        = 4.9701 atm  Initial Temperature (T1) = 654.67 K  initial…

Q: What volume of water vapor gas would be produced from the combustion of 574.80 grams of propane…

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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 balloon at 30C has a volume of 222mL. If the Temperature is increased to 63.1C and the pressure…

A: According to ideal gas law, PV = nRT where P = pressure V = volume n = moles R = gas constant T =…

Q: Cyclopropane, a gas that when mixed with oxygen is used as a general anesthetic, is composed of…

A: The given mass percent is converted into gram. Next determine the number of moles of each element.…

Q: A chemical reaction occurring in a cylinder equipped with a movable piston produces 0.621 mol of a…

A: Concept: The volume of gas depends on the temperature, pressure, and the mol of gas. The volume of…

Q: A very flexible helium-filled balloon is released from the ground into the air at 20. ∘C. The…

A: Given: Initial pressure = 760 mm Hg. Initial temperature = 20 oC Initial volume = 5.00 L Final…

Q: 73. CH3OH can be synthesized by the reaction: CH3OH(g) CO(g) + 2 H2(g) What volume of H2 gas (in L),…

A: This question can be solved using the law of multiple proportions and ideal gas law. Here we are…

Q: What is the density of ammonia gas, NH3, at 33°C and 757 mmHg? Obtain the density in grams per…

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Q: The Hindenburg was a hydrogen-filled dirigible that explode in 1937. If the Hindenburg held  2.0x105…

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Q: A sample of O2 gas initially occupies a volume of 314 mL at 57.0oC and 1.97 atmospheres.   What…

A: Boyle’s law states that at a particular temperature the pressure of a gas is inversely proportional…

Q: If 10.3g of Mg3N2 is treated with water, what volume (L) of NH3 gas is collected at 24.0C and…

A: Ideal Gas Law :-  PV = nRT  P is the pressure of gas  V is the volume occupied by gas n is the…

Q: A sample of gas in a balloon has an initial temperature of 5 ∘C and a volume of 1600 L . If the…

A: Given : Initial temperature = 5oC=5 + 273= 278K Final temperature = 59oC= 59 + 273= 302K Initial…

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

A: The balanced reaction taking place is given as, => MnO2 (s) + 4 HCl (aq) ⟶ MnCl2 (aq) + 2 H2O (l)…

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

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Q: A meteorological balloon contains 206 L He at 26.6oC and 733 mm Hg. If the volume of the balloon can…

A: Initial volume = 206 L  Initial temperature = 26.6 °C ..Or  because  °C + 273 = k   ..so, 26.6 °C +…

Q: When 10.33 g of neon is combined in a 20 L container at 99.8oC with 8.24 g of argon, what is the…

A: The molar mass of Neon = 20g/mol The molar mass of Argon = 40g/mol  Total Volume = 20L  T = 99.8oC =…

Q: An unknown amount of hydrogen gas fill a 1.5 L balloon at 868 torr while at 92.1 °F. What would the…

A: The new volume of the balloon can be calculated by - V1/T1 = V2/T2 Here, V1 = initial volume of the…

Q: The density of NO2 in a 4.50 L tank at 760.0 torr and 25.0 °C is g/L.

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Q: What volume does 2.7 grams of NH3(g) occupy if the pressure is 740 mmHg, and the temperature is 45…

A:

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

A: Pressure = 765 Torr Volume = 405 mL = 0.405 L Temperature = 25°C = 298 K  Mass of MnO2 required =?

Q: A sample of a breathing mixture for divers contained 34.3% helium, He; 51.7% nitrogen, N2; and 14.0%…

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Q: The complete combustion of methane, CH4, can be represented by the equation         CH4 (g) + 2 O2…

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Q: we can estimate that its volume was 31,150 L given the dimensions recorded at the time. If the…

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Q: A helium filled weather balloon has a volume of 502L at 14.9 degrees Celsius and 751mmHg. It is…

A: From the combined gas law we know , (P1V1)/T1 = (P2V2)/T2 Where P1 = Initial pressure of system P2 =…

Q: ) 1.0 L of liquid nitrogen is kept in a closet measuring 10.00 dm by 1x10-12 Tm by 2x1024 ym.…

A: Given that: Volume of liquid nitrogen = 1.0 L Closet dimensions = 10.0dm × 1×10-12Tm × 2×1024ym…

Q: 3. A sample of gas occupies 5.00L at a temperature of 27 degrees celsius. What will its volume be at…

A: Given, Initial Volume , V1 = 5.00 L Initial Temperature = 27°C Final temperature = 127°C Final…

Q: A sample of oxygen gas has a volume of 3.24 L at 31°C. What volume will it occupy at 147°F if the…

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

A: In the given reaction the number of Cl2 gas can be obtained using ideal gas law equation: Where, P…

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: If 1.80 molmol of helium gas occupies 5.10 LL at 2.30 atmatm, what is the temperature in degrees…

A: Number of moles of He = 1.80 mol V = 5.10 L P = 2.30 atm

Q: Butane, C4H10, is an easily liquefied gaseous fuel. Calculate the density of butane gas at 0.957 atm…

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Q: A sample of ideal gas at room temperature occupies a volume of 26.0 L at a pressure of 832 torr . If…

A: Given: Initial volume of gas = 26.0 L Initial pressure of gas = 832 torr. And final pressure of gas…

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.