The density of of an unknown gas is 11.12 g/L at pressure and temperature of 632 torr and 45oC, respectively. What is the molar mass of the unknown gas? (R = 0.08206 L.atm/K.mol) (B4)          (A) 49.4 g/mol          (B) 349 g/mol          (C) 439 g/mol          (D) 241 g/mol

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A: The solution is as follows :

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A: Ideal gas law PV = nRT P = preasure v = volume n = m/M  = moles m = mass of gas M = molar mass of…

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Q: A sample of zinc metal is allowed to react completely with an excess of hydrochloric acid: Zn(s) + 2…

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Q: How many moles ofoxygenare in a5850mL sample of the gas at 1390. mm Hg and164°C? i 226.7 mol

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Q: A 2.50L glad was used to collect a 2.65 gsamole if propane gas C3H3.After the sample was collected…

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Q: Chemistry

A: Please see the attached image for the solution.  If there are queries or if the image is not…

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Q: Ammonia, NH3, may react with oxygen to form nitrogen gas and water. 4NH3(aq)+3O2(g)⟶2N2(g)+6H2O(l)…

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Q: O Calculate the volume in liters of each of the following quantities of gas at STP:

A: Since you have posted multiple questions, we are entitled to answer the first only. Please repost…

Q: The following system is used for q7-q9 10.00g of O2 and 15.00g N2 are combined in a 20.0L container…

A: Given: The mass of O2 in the container = 10.00 g The mass of N2 in the container = 15.00 g The…

Q: What volume is occupied by 0.309 mol of CO2 at 361.4 K and 915 mmHg? ?=…

A: Given, Number of moles = 0.309 Temperature = 361.4 K Pressure = 915 mm Hg  1 atm = 760 mm Hg

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A: With increasing in temperature volume of the gas increases .As with increasing in temperature…

Q: 10.00g of O2 and 15.00g N2 are combined in a 20.0L container at 25.00oC O2 32.00g/mol N2 28.02…

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Q: 11. Methane burns in oxygen to produce CO₂ and H₂O CH4(g) + 20₂(g) →→→→→→2H₂O(1) + CO₂(g) 5600ML If…

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A: Welcome to bartleby !  As per company norms we can not answer more than one question .So, I have…

Q: 5.69 g of H2 and 3.84 g O2 react according to the following equation: 2H2(g) + O2(g) --> 2H2O(g)…

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Q: What is the density in g/L of the gas CO2 at -14.9° C and 0.667 atm?

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Q: 10.26 A fixed quantity of gas at 21 C exhibits a pressure of 752 torr and occupies a volume of 5.12…

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A: The objective of this question is to find the temperature at which the N2 gas will occupy 4.80 L,…

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Q: There are two separate closed vessels with equal volume, the first one has H2 gas at 27 °C and the…

A: PV = nRT  P1 = P2, V1 = V2 P1V1 = P2V2 n1RT1 = n2RT2 Molecular weight of H2 = 2g Temperature of…

Q: (1) The following gases were mixed and placed in a 10-L container at STP: 1.00g He, 0.50g Xe, and…

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Q: A mixture of gases composed of H, He, and Ar has a volume of 46.97 La total pressure of 6.0632 atm…

A: Pressure = 6.0632 atm  Volume = 46.97 L  Temperature = 256.35 K No. of moles = ? Now, using the gas…

Q: If 10.0 L of a gas at STP has a mass of 19.5 g, calculate the molar mass of the gas. (a) 44 g/mol…

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Q: 1) Assuming you have constant pressure and number moles, if you fill up a balloon with a certain…

A: Note - Since you have asked multiple question, we will solve the first question for you. If you…

Q: What is the mass, in grams, of 9.03x1023 molecules of methanol

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Q: rces urses line gs OS back 28 How many moles of an unknown gas are in a 325 mL container at a…

A: V = 325 mLP = 695 torrT = 19oC=19+273=292KR = 0.08206 L-atm/mol-Kn=?

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Q: A student collects a 505 cm³ sample of hydrogen gas at 30°C and 3 atm of pressure. How much space…

A: Given  Volume of Hydrogen gas ( V1 ) = 505 cm3            ( 1cm3  = 1 mL )  Initial Pressure ( P1 )…

Q: 7.7 g of unknown gas occupies 6.94 L at 13°C and 1.77 ATM. What is the molecular mass of the…

A: Applying ideal gas equation PV= nRT

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A: Here, we can attempt only the first question which allows us to determine the Molar Mass of the…

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Q: One mole of an ideal gas occupies 22.4 L at standard temperature and pressure. What would be the…

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Q: 8. 14.0 L of gas is contained at 25.00°C and at 1.00 atm. How many moles of gas is present? 9. What…

A: We can calculate the number of moles by using the ideal gas equation. PV =nRT.

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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.