A 9.5m diameter balloon is filled with helium at 16°C and 205.46kPa. Determine the mass of the helium in the balloon. Round your answer in 2 decimal places.

Q: If a sample of gas at 35.4℃ and 108.4kPa is heated until the pressure is 297.1kPa and the volume is…

A: PV=nRT is the ideal gas equation. Here , P= Pressure (in Pa) ; V = Volume (in m3) ; n= No. of moles…

Q: A 4.5-liter sample of gas at 760.0 T and 0.0°C is heated to 65°C. What volume must the gas occupy if…

A: Initial Volume, V1=4.5 L Initial temperature, T1=0.0°C + 273 =273 K Final temperatue=65°C =65 + 273…

Q: What volume of ammonia is required to react with 9.75 liters of oxygen gas according to the…

A:

Q: A gas exerts a force of 50N over an area of 10m2. What pressure does the gas exert in Pa?

A: It is provided in the question that the gas considered exerts a force of 50 N over an area of 10m2.…

Q: An automobile tire at 25 Celsius with an internal volume of 22.6L is filled with air to a total…

A: Ideal gas:  PV = nRT  P = pressure V = volume R = gas constant= 62.36 torr L K-1 mol-1  T =…

Q: If a certain gas occupies a volume of 11 L when the applied pressure is 5.57 bar , find the pressure…

A: Let's assume the gas behaves ideally. Here, at both the two states, the number of moles of gas…

Q: If the speed of a helium atom in a balloon is 1200 meters per second, choose the best answer for the…

A: Given that: Speed of He atom in balloon = 1200 meters/second Conversion into miles per hour using…

Q: A 14.5-L scuba diving tank contains a helium-oxygen (heliox) mixture made up of 24.5 g of He and…

A: Given,  A 14.5-L scuba diving tank contains a helium-oxygen ( heliox ) mixture made up of 24.5 g of…

Q: Your car’s tire should have a pressure of up to 35.1 psi and an air volume of 9.98 L. a. At ambient…

A: Given, P = 35.1 psi V = 9.98 L T = 93.5 F

Q: Calculate the density of methanol (CH3OH) using STP.

A:

Q: Q2: A gas-filled balloon has a volume of 62.5 L when on the ground under the following pressure and…

A:

Q: a sample of an unknown compound is vaporized at 140 degrees celsius. the gas produced has a volume…

A: Given temperature (T) = 140°C =140°C + 273.15 = 413.15KGiven volume occupied by the gas (V) = 1490…

Q: A reaction between liquid reactants takes place at 16.0°C  in a sealed, evacuated vessel with a…

A: Given, Temperature (T)=16°C=(16+273)K=289 K Volume (V) =30 L SF4 produced =10.0 g

Q: A cylinder measuring 9.1 cm wide and 11. cm high is filled with gas. The piston is pushed down with…

A: The piston of the cylinder is pushed by a steady force of 15 N. At equilibrium the pressure on the…

Q: At STP conditions, what is the volume occupied by one mole of gas?  (no matter the composition of…

A:

Q: A 20.0 L gas cylinder is filled with 9.80 moles of gas. The tank is stored at 23 ∘C . What is the…

A: PV = n RTHere, P is pressure, V is the volume, n is moles, R is gas constant having a constant value…

Q: Aqueous hydroxylamine, NH2OH, decomposes to yield nitrogen gas, aqueous ammonia, NH3, and liquid…

A: We will use the Ideal gas equation to calculate the number of moles of N2. And using the balanced…

Q: What is the idea of the work of the Manometer? Is an instrument used to measure the gas pressure in…

A: The difference in air and liquid pressure is determined by a manometer by comparing it to an…

Q: What volume of air contains 12.7 g of oxygen gas at 273 K and 1.00 atm?         Express your answer…

A: ideal gas law is PV=nRT

Q: A 9.00L tank at 6.73°C is filled with 3.26g of boron trifluoride gas and 6.22g of chlorine…

A:

Q: How many grams of CO2CO2 are in 46.0 LL of CO2(g)CO2(g) at 1.40 atmatm and 5∘C∘C? Express your…

A:

Q: A sulfur dioxide gas sample has a volume of 216.99 mL at 227768 pascals and 77.06°F. Calculate the…

A:

Q: A 20.0 L gas cylinder is filled with 5.60 moles of gas. The tank is stored at 3 ∘C . What is the…

A:

Q: Using the van der Waals equation, calculate the pressure of 56 moles ammonia gas present in a 54.7 L…

A: We know that according to the Vander walls equation of state - P = nRTV-nb -an2V2 Where - P =…

Q: A cooled tire has a volume of 34.5 L at -13.79°C and 187.47 kPag. If the pressure and temperature…

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

Q: Dimethyl ether, CH;OCH3, undergoes gas phase decomposition to form methane, hydrogen gas, and carbon…

A: First calculate the moles of Dimethyl ether :  Molar mass of Dimethyl ether = 46.07gmol-1  Moles of…

Q: Most of the sulfur used in'the United States is chemically synthesized from hydrogen sulfide gas…

A:

Q: What volume of hydrogen sulfide is required to react with 175 liters of oxygen gas according to the…

A:

Q: A balloon with an initial volume of 3.4 L at a temperature of 295 K is warmed to 361 K.

A: According to Charles's law, at constant pressure, the volume of a gas is directly proportional to…

Q: a sample of helium gas occupies 375ml at 1.05 atm an 82 degrees F. What is the weight of the helium…

A: First determine the moles of helium gas using ideal gas equation. PV=nRTn = PVRT=1.05…

Q: What volume of butane (C,H10) is required to react with 58.6 liters of oxygen gas according to the…

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

Q: A 20.0 L gas cylinder is filled with 5.80 moles of gas. The tank is stored at 17 ∘C . What is the…

A:

Q: A balloon is filled to a volume of 7.40 × 10² mL at a temperature of 15.0°C. The balloon is then…

A: When the temperature of the gas is lowered at constant pressure the volume of the gas decreases.…

Q: Calculate the density of NO2 gas at 0.970 atm and 35C.

A: Using the ideal gas equation, the density of given NO2 is determined.

Q: reaction between liquid reactants takes place at −4.0°Cin a sealed, evacuated vessel with a measured…

A: The question is based on the concept of ideal gases. we have to make use of ideal gas equation to…

Q: 6. A hypodermic syringe contains a medicine with the density of water. The barrel of the syringe has…

A: Solution -

Q: helium-neon lasers contain a low pressure mixture of helium and neon gases. how many times greater…

A: A question based on root mean square velocity, which is to be accomplished.

Q: A 1.25 L sample of nitric oxide gas at 85 ∘C is cooled to 35 ∘C  If the pressure remains constant,…

A:

Q: One of the steps to sweeten sour gas using the Claus process is reacting hydrogen sulfide gas with…

A: Ideal gas law equation is the equation which obeys gas laws under all condition of temperature and…

Q: Calculate the density of krypton gas at a pressure of 749 mmHg and a temperature of 31 °C. Express…

A: The formula of the density for ideal gas is  =>density(d) = PM/RT  where, P is the pressure M is…

Q: If a 3 m^ 3 of gas initially at STP is placed under a pressure of 4 atmthe temperature of the gas…

A: Given: Initial Pressure, P1=1 atm The initial volume, V1= 3 m3     The initial temperature, T1=273 K…

Q: What volume of ammonia is required to react with 5.38 liters of oxygen gas according to the…

A:

Q: What volume of nitrogen monoxide is required to react with 180 liters of hydrogen gas according to…

A:

Q: Nitrogen trichloride is dangerously explosive and sensitive to light and heat. If 21.3 mol of…

A:

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.