A sample of a gas has a mass of 0.311f. At 55C, its volume is 0.225L & its pressure is 886 mmHg. Find its molar mass.

Q: A sample of krypton gas at a pressure of 0.943 atm and a temperature of 21.1 °C, occupies a volume…

A: According to Boyle's law: The volume of a fixed mass of gas at constant temperature is inversely…

Q: A certain gas has a density of 1.72g/L at STP. What is its molar mass?

A: Given that: Density of the gas = 1.72g/L The gas is STP. To find, the molar mass of the gas?

Q: If the volume of a gas container at 31°C changes from 1.45 L to 755 mL, what will the final…

A: The volume of a specific mass of gas is directly proportional to the 'T' on kelvin scale at constant…

Q: An ideal gas in a sealed container has an initial volume of 2.30 L. At constant pressure, it is…

A: Given Initial Volume = V1 = 2.30 LInitial Temperature = T1 = To be determined Final Temperature = T2…

Q: If a sample of oxygen gas occupies 4200 mL at 205.0 °C and 3.82 atm, what temperature in °C will it…

A: The expression that explains the relationship between temperature, pressure and volume is as…

Q: If the initial temperature of an ideal gas at 2.250 atm is 62.00 ∘C, what final temperature would…

A: Given : Initial temperature of gas = 2.250 atm  Initial temperature of gas = 62.00 oC And final…

Q: A sample of argon gas at a pressure of 0.972 atm and a temperature of 23.5 °C, occupies a volume of…

A: According to the Boyle’s law, the volume of a fixed amount of gas at a constant temperature will be…

Q: The gas in a 250.0 mL piston experiences a change in pressure from 1.00 atm to 3.05 atı What is the…

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Q: A sample of hydrogen gas at a pressure of 0.838 atm and a temperature of 27.6 °C, occupies a volume…

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Q: Consider a sample of argon gas at 20.0ºC, 2167 mm Hg, and 1,450 mL. How many moles of argon are in…

A: Given, Pressure of argon gas (P) = 2167 mmHg = 2.85 atm Volume of argon gas (V) = 1,450 mL = 1.45 L…

Q: (a) A sample of nitrogen gas occupies a volume of 3.00 L at 760 mm Hg and 0.0 °C. If the volume of…

A: The ideal gas equation is given by, P1V1T1=P2V2T2 where P is the pressure, V is the volume and T is…

Q: A 0.6333 g sample of a metal carbonate was reacted with hydrochloric acid. The carbon dioxide gas…

A: We have given that the CO2 is collected at temperature of 26.0°C T = 26 + 273.15 = 299.15 K…

Q: An ideal gas in a sealed container has an initial volume of 2.75 L. At constant pressure, it is…

A: Given information: Volume of the gas at initial stage (V1) = 2.75 L Volume of the sample at final…

Q: A 113-mL gas sample has a mass of 0.171 g at a pressure of 721 mmHg and a temperature of 32 °C. What…

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Q: A sample of a gas has a volume of 78.5 mL at 450C. What volume will the sample occupy at 00C when…

A: Given Data: V₁ (initial volume) =  78.5 ml T₁ (initial temperature) = 45 °C…

Q: When 4.67 L of carbon dioxide at 485.6 mmHg and 25.0 ℃ is heated to 475.0 ℃ and converted to 754.2…

A: Given P1 = 485.6 mmHg V1 = 4.67 L T1 = 25°C P2 = 754.2 mmHg V2 = ? T2 = 475°C

Q: Consider the following reaction: NaClO3(s)+ Fe(s)→ O2(g)+ NaCl(s)+FeO(s)   What volume of O2 gas…

A: Given data: The mass of NaClO3 = 2.10 kg = 2100 g. Pressure = 3.00 atm. Temperature = 391 K.…

Q: At 571  mm Hg and 323 K, a gas sample has a volume of 2.45 mL. What is the final pressure (in mm Hg)…

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Q: If 4.28 g Ar4.28 g Ar are added to 2.52 atm He2.52 atm He in a 2.00 L cylinder at 27.0 °C, what is…

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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: An anaesthetic gas contains 64.81% carbon, 13.60% hydrogen, and 21.59 % oxygen by mass, If 2.00 L of…

A: Given: Volume of gas = 2.0 L Temperature = 25 oC Pressure = 0.420 atm mass =2.57 g % of carbon =…

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 gas is compressed at constant temperature from a volume of 540 mL to 320 mL.  If the initial…

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Q: If a balloon is filled with 4.56 moles of helium gas and then exposed to a pressure of 0.123 atm at…

A: Given: Moles of He  gas: 4.56 Pressure : 0.123 atm Temperature : 28 oC = 301 K

Q: A 15.00 L vessel containing 5.65 g H2 gas at 27°C is connected by means of a valve to a 6.0 L vessel…

A: Given; Volume (V1 ) of H2  vessel = 15 L Volume (V2 ) of O2 vessel = 6 L Temperature (T) = 300K…

Q: 30.0

A: Dear student this question is related to molar mass concept.

Q: The gas in a 1550 mL balloon at sea level has a pressure of 755 mmHg, and 26.0 ℃. If the balloon…

A: From the ideal equation PV=nRT where  P=Pressure V=volume n= mole R= Universal gas constant T=…

Q: At SATP, a gas has a density of 1.78 g/L. What is the molar mass of the gas?

A: We have the ideal gas law as: PV= nRT We know no of moles = given mass÷ molar mass ⇒PV = (w÷M)RT…

Q: If 37.5 mol of an ideal gas occupies 92.5 L at 43.00 ∘C, what is the pressure of the gas?

A: Ideal gas equation: PV = nRT Where, P = pressure in atm; V = Volume in L               n = number of…

Q: A 248-mL gas sample has a mass of 0.433 g at a pressure of 745 mmHg and a temperature of 28 °C. What…

A: Ideal gases are those gases which follow ideal gas equation. The relation between pressure, volume,…

Q: A sample of hydrogen gas occupies a volume of 6.42L at 49.0 degrees Celsius and.770 atm. If it is…

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Q: A sample of gas at 830.0 mmHg and occupying a volume of 12.66 L has an increase in pressure to…

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Q: you collect 552 mL of argon gas at 23.0C. what volume will the gas occupy at 46.0C if the pressure…

A: At constant pressure,  V1/T1 = V2/T2  V1 = initial volume  T1 = initial Temperature  V2 = final…

Q: An ideal gas in a sealed container has an initial volume of 2.50 L. At constant pressure, it is…

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Q: 0.0380g of Mg strip reacted completely with 6 M HCl in the gas buret of 35.8 mL oh hydrogen gas is…

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Q: An ideal gas in a sealed container has an initial volume of 2.80 L. At constant pressure, it is…

A: We have initial volume as 2.8 L, pressure is kept constant, final volume is 1.75 L, final…

Q: A sample of helium gas has a volume of 3.24 L at 25°C. What volume will it occupy at 286K if the…

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Q: The atmosphere in a sealed diving bell contained oxygen and helium. If the gas mixture has 0.170 atm…

A: Given: The total pressure of the gas mixture = 2.90 atm The pressure of oxygen in the mixture =…

Q: If 3.23 g Ar are added to 4.22 atm He in a 2.00 L cylinder at 27.0 °C, what is the total pressure of…

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Q: If 1.52 g Ar are added to 3.41 atm He in a 2.00 L cylinder at 27.0 °C, what is the total pressure of…

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Q: The volume of a gas is 0.668 L at 66.8°C. At what Celsius temperature will the gas have a volume of…

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Q: If a sample of oxygen gas occupies 0.0032 mL at 215.0 °C and 4.82 atm, what temperature in °C will…

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Q: A gas at 34C and 1.75 atm has a density of 3.4 g/L. Calculate the molar mass of the gas?

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

Q: At 24 °C and 745 mmHg, the density of an unknown gas is determined to be 7.76 g/L. What is the molar…

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Q: At 57°C (T), you find 8.57mol (n) of gas has a volume of 24.7L (V). What is the pressure (P) of the…

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 helium gas has a volume of 3.67Lat 29°C. What volume will it occupy at 208°F if the…

A: Given:- Initial volume = 3.67 L              Initial temprature = 29 oC              Final…

Q: An ideal gas in a sealed container has an initial volume of 2.35 L. At constant pressure, it is…

A: Given :- initial volume = 2.35 L final volume = 1.75 L final temperature = 21.00 °C  To calculate :…

Q: In scientific notation, At 25˚C and 755torr pressure,what will be the volume of 78mol of the He gas…

A: Ideal gas equation. PV=nRT. P is pressure. V is volume. n is number of moles. R is gas constant. T…

Q: A 1.98-g sample of an unknown gas has a volume of 816 mL and a pressure of 712 mmHg at 52.3 °C.…

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Q: At 1.041.04 atm and 6.78 ∘C6.78⁢ ∘C, a 3.543.54 g sample of gas occupies a volume 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.