While resting, the average 70-kg human male consumes 14 L of pure O2 per hour at 25 °C and 100 kPa. How many moles of O2 are consumed by a 70 kg man while resting for 1.0 h?

Q: The partial pressures of CH4, N2, and O2 in a sample of a gas mixture were found to be 123 mmHg, 505…

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Q: If 18.3g N2O2 occupies 5.4 L at 250 K, what is the volume if all of the N2O4 is converted to NO2 at…

A: The complete reaction is given as, N2O4 →2 NO2

Q: In what volume must 12.5 moles of argon be contained so that at 20.0°C it would exert a pressure of…

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Q: At what temperature will 0.654 moles of neon gas occupy 12.30 liters at 1.95 atmospheres?

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Q: For the reaction C+O2 =CO2 what volume of O2 gas at 25.0 degrees Celsius and 1.02 atm is required to…

A: Consider the given balanced equation as; C + O2 → CO2     Given information is as follows;…

Q: What volume of hydrogen and nitrogen are required to produce 20.0 L of ammonia at 37oC and 1.20 atm?

A: We have given that  Volume of ammonia to be produce = V = 20.0L  Temperature = T = 37°C = 310K…

Q: What volume of oxygen gas at 298K and 680torr will react completely with 5.0L ok co gas at the same…

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Q: What volume in liters of fluorine gas is needed to form 261 L of sulfur hexafluoride gas if the…

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Q: What volume of carbon dioxide gas (in L) at 21*C and 781 mmHg could be absorbed by 327g of lithium…

A: Given data,Temperature=21oC21+273.15=294.15KPressure=781mmHg=781760atm=1.027atmMass of LiOH=327g

Q: 1. A flask contains 155 cm of hydrogen collected at a pressure of 22.5 kPa. 3 Under what pressure…

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Q: You fill a rigid steel container with a volume of 20 L with nitrogen gas to a pressure of 2000 kpa…

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Q: 4. How many moles of helium are contained in 890.0 mL at 21.0 °C and 99.97 kPa pressure?

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Q: What pressure will be exerted by 25g  of CO2 at a temperature of 25 C and a volume of 500mL

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Q: What volume of O2 measured at 1.86 × 106Pa and 375k, is required to react entirely with 1.78 liters…

A: At same temperature and pressure, volume of gas is directly proportional to number of moles of…

Q: How many moles of krypton gas must be added to a 250 ml incandescent light bulb to yield a gas…

A: To solve this problem, use the ideal gas law formula and rearrange that formula for number of moles…

Q: Consider the following chemical reaction: C(s)+H2O(g)→CO(g)+H2(g) How many liters of hydrogen gas…

A: Given: mol of Carbon = 1.07 mol pressure = 1 atm temperature = 317 K we have to find grams of carbon…

Q: (ii) What is the partial pressure of oxygen and nitrogen (in kPa) if they are present at 6.42 mol/m3…

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Q: What will be the density of CO2 in g/L at temperature 298 K, and 1 atm pressure?

A: The relationship between the mass of a substance (M) and the occupied volume (V) is furnished by a…

Q: calculate the density of CO2 in g/L at 0.990 atm and 55C?

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Q: What is the pressure exerted by 2.00 moles of oxygen gas confined to a volume of 500 mL at 20.0°C?

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Q: What volume is occupied by 0.640 mol of CO2 at 273.5 K and 701 mmHg ?

A: We have to calculate the volume occupied by gas.

Q: What would be the molar mass of a gas for which 2.43 x 10-2g occupies a volume of 7.68 mL at STP?

A: Given that, volume of gas at STP, V = 7.68 mL = 0.00768 L Mass of gas at STP, m = 2.43×10-2 g Molar…

Q: 3. What volume of O2 at STP can be pumped into a 0.500-L tank at 24.5 degrees Celcius to give a…

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Q: What volume in liters of fluorine gas is needed to form 999 L of sulfur hexafluoride gas if the…

A: If temperature and pressure keeping constant then volume of gas is directly proportional to the…

Q: What is the volume (in L) of carbon dioxide at 1.00 atm and 298.15 k are released from a car's…

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Q: What volume in liters of fluorine gas is needed to form 999 L of sulfur hexafluoride gas if the…

A: The expression of ideal gas equation is shown below: PV = nRT Where; P = pressure V = volume n =…

Q: At 250 kpa 309K, a sample of gas has a volume of 4.2 L. How many moles of gas are present?

A: The ideal gas equation is  PV = nRT  P = pressure in kPa V = volume in Litres  n = moles  R = gas…

Q: 6. Calculate the density of hydrogen bromide (HBr) gas in grams per liter at 733 mm Hg and 46°C.

A: For the ideal gas, the temperature pressure and the volume are related by the ideal gas equation.…

Q: What volume would 27 grams of CO2 occupy at 19 degrees celsius, 534 mm Hg pressure?

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

Q: What volume of hydrogen at 225 atm and 35.5 °C would be required to react with 1 ton (1.000 x 10°…

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Q: The density of an ideal gas at STP is found to be 1.94 g/L . What is its molar mass? molar mass:…

A: The ideal gas equation is given by: PV=nRT where P is the pressure of the gas V is the volume of the…

Q: What mass of magnesium must be reacted with hydrochloric acid to obtain 750. mL of hydrogen at 25oC…

A: Find the moles of H2 gas using equation PV = nRT  then find the mass of Mg using the balanced…

Q: A 0.179g sample of an unknown halogen occupies 109mL at 398K and 1.41 atm. What is the identity of…

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Q: At what pressure does 5 grams of H2 occupy a volume of 50L at a pressure of 1.01atm?

A: Welcome to bartleby !

Q: What is the ratio of urms to ump for a sample of O21g2 at 300 K? Will this ratiochange as the…

A: Calculate  μrms  (root mean square) as follows. In the expression, R is universal gas constant, T is…

Q: A sample of nitrogen occupies 9.5 liters at 32 oC and 85.7 kPa. What would be the volume at 20 oC…

A: We can use the gas equation to calculate the volume of the gas at a different temperature and…

Q: A 3.85 g sample of a KCl−KClO3 mixture is decomposed by heating and produces 117 mL O2(g), measured…

A: Given, V = 117 mL = 0.117 L as 1 mL = 0.001 L T = 23.5 + 273 = 296.5 K P = 110 kPa The value of R is…

Q: 3.19K HI B. What mass of aluminum metal must be dissolved in excess hydroiodic acid to pro L of…

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Q: A 0.338-g sample of gas occupies 125 mL at 60. cm of Hg and 25°C. What is the molar mass of the gas?

A: It is given that the mass of the sample is 0.338 g and occupies 125 mL at a pressure of 60 cm Hg at…

Q: What is the temperature of 0.575 mole of neon in a 2L vessel at 4.68 atm?

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

Q: A 2.5 L canister under a pressure of 150 kPa at 20 °C is compressed to a volume of 1.5 L at 35 °C.…

A: The answer to the following question is-

Q: If the atmosphere is 25 degC and 1.2 atm and contains 0.79 mole fractions of N2, 10-S mole fractions…

A: Given that : Pressure of the atmosphere = 1.2 atm Mole fraction of N2 = 0.79 Mole fraction of the…

Q: What is the total pressure exerted by a mixture of 2.00 g ofH21g2 and 8.00 g of N21g2 at 273 K in a…

A: The given data contains, Volume = 10.0 L. Temperature =273 K gas constant R =0.0821 L.atm.mol-1K-1

Q: First-generation automobile airbags were inflated by the decomposition of sodium azide (M = 65.02):…

A: Ans is 2.166gg

Q: What volume would 20.0g of CO2 occupy at a temperature of 25 °C and a pressure of 105 kPa?

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Q: What volume of oxygen at 455 K and a pressure of 127400 Pa is produced by the decomposition of 114.7…

A: Consider the decomposition reaction of BaO2 to BaO and O2 is as follows; 2 BaO2 → 2 BaO + O2 Given…

Q: What is the density of carbon dioxide gas (CO 2, 44.01 g/mol) at 25°C and 650 mm Hg?

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Q: Alka-Seltzer® contains the base sodium hydrogen carbonate, NaHCO3, which reacts with hydrochloric…

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Q: At 273 K and 1 atm pressure, 1 mol of an ideal gas occupies 22.4 LIn which parts of the atmosphere…

A: Molar volume = 22.4 L

Q: iron(s) + hydrochloric acid(aq) ---> ferric chloride(aq) + hydrogen(g) How many grams of iron are…

A: The reaction taking place is given as, => Iron (s) + Hydrochloric acid (aq) ------> Ferric…

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.