A large evacuated flask initially has a mass of 134.567 g. When the flask is filled with a gas of unknown molar mass to apressure of 735 torr at 31 °C, its mass is 137.456 g. When the flask is evacuated again and then filled with water at 31 °C, itsmass is 1067.9 g. (The density of water at this temperature is 0.997 g/mL.) Assuming the ideal-gas equation applies, calculatethe molar mass of the gas.

Q: A sample of gas contains 0.1000 mol of CO(g) and 0.1000 mol of NO(g) and occupies a volume of 8.80…

A: The given reaction is:

Q: At 25.0° C, a 10.00 L vessel is filled with 7.00 atm of Gas A and 5.89 atm of Gas B. What is the…

A: The partial pressure is the mixture of gases being occupied the with same volume at the same…

Q: What volume of oxygen gas is produced when 82.4 g of mercury(II) oxide reacts completely according…

A:

Q: (a) What is the total volume of gaseous products,measuredat 350C and 735 torr, when an automobile…

A: (A) The component of gasoline, i.e. the octane (C8H18) when burnt in presence of oxygen, it gives…

Q: A flask weighs 50.1305g when clean, dry, evacuated, 150.2410g when filled with water (density =…

A:

Q: A sample of gas contains 0.1500 mol of CO(g) and 7.500×10-2 mol of O2(g) and occupies a volume of…

A: The given balanced reaction is 2COg+O2g→2CO2g. From the balanced equation it is clear that 2 mole CO…

Q: Consider the reaction: 2 Ag2O(s) ---------> 4 Ag(s) + O2(g) If this reaction produces 15.8 g of…

A: Mass of Ag = 15.8 g Molar mass of Ag = 107.9 g/mol Moles = massMolar mass=15.8 g107.9 g/mol=0.146…

Q: A gas mixture contains each of the following gases at the indicated partial pressures N 2 ,216 torr;…

A: Partial pressure of N2 = 216 torr ...Or  because 1 atm = 760 torr  ...so,  = 216 torr × (1 atm / 760…

Q: 9. A combustion reaction involving 628.0 g n-butanol (C,H100) occurs at 345.0 °C and 15.2 atm. What…

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

Q: In a mixture of He, Ne, and Xe gases with a total pressure of 925 atm, if there is 10.5 g of each…

A: Number of moles = Mass/molar mass Pi = Xi x P Where, Pi = partial pressure of gas i ; P = total…

Q: A sample of gas contains 0.1800 mol of NH3(g) and 0.2250 mol of 02(g) and occupies a volume of 17.6…

A: The change in temperature, pressure, volume and number of moles of an ideal gas is given by ideal…

Q: Two bulbs are connected by a stopcock. The 4.50 L bulb contains nitric oxide (NO) at a pressure of…

A:

Q: An ideal gas is allowed to expand from 7.20 L to 39.6 L at constant temperature. By what factor does…

A:

Q: Reaction Stoichiometry Involving Gases 71. Consider the chemical reaction: C(s) + H2O(8) CO(g) +…

A:

Q: At 25.0° C, a 10.00 L vessel is filled with 7.06 atm of Gas A and 7.89 atm of Gas B. What is the…

A:

Q: Suppose a 185 gram sample of hydrogen reacts as follows: 2 NO2(g) + 7 H2(g) → 2 NH3 (g) + 4 H2O(g)…

A: The balanced reaction taking place is given as, => Given: Mass of H2 reacting = 185 g. Volume of…

Q: An ideal gas is allowed to expand from 8.80 L to 48.4 L at constant temperature. By what factor…

A: Given: An ideal gas is allowed to expand from:            V1 = 8.80 L to  V2 = 48.4 L at constant…

Q: A sample of gas contains 0.1600 mol of CH4(g) and 0.1600 mol of H2O(g) and occupies a volume of 18.4…

A: Given information: 0.1600 mol of CH4(g) and 0.1600 mol of H2O(g) volume of 18.4 L at reactant side…

Q: Consider three identical flasks filled with different gases. Flask A: N2 at 2.00 atm and 0 oC Flask…

A: Given: For three flasks: Temperature=0 oC

Q: A gas sample weighing 19.66 g occupies a volume of 7.85 L at STP. What is the molar mass of this gas…

A: The ideal gas equation is given as:

Q: A sample of gas contains 0.1300 mol of CO(g) and 6.500×10-2 mol of O2(g) and occupies a volume of…

A:

Q: If equal amounts of the four inert gases Ar, Ne, Kr and Xe are released at the same time at one end…

A:

Q: Suppose a 185 gram sample of hydrogen reacts as follows: 2 NO2 (g) + 7 H2 (g) → 2 NH3 (g) + 4 H20(g)…

A: 8.7 ) First we calculate moles of hydrogen gas , then we would use stoichiometry relation to…

Q: a gas weighs 4.25 g and has a volume of 956.0 mL at 665.0 torr and 35.0 °C. What is its molar mass?

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

Q: What volume of oxygen gas is produced

A:

Q: What volume of gas (ml) can be produced the complete reaction of 3.82 g of calcium sulfite with…

A: Given information: 3.82 g of calcium sulfite pressure of the gas is 827 torr Temperature = 44°C =…

Q: A 144.6 mL sample of O2 gas at 509.6 torr is compressed at constant temperature to 87.5 mL. Predict…

A:

Q: A large flask with a volume of 936 mL is evacuated and found to have a mass of 134.66 g. It is then…

A:

Q: A gas mixture contains each of the following gases at the indicated partial pressures: N2, 226 torr…

A: Given:The pressures of three gases,N2 = 226 torrO2 = 125 torr  He = 109 torrWe need to calculate the…

Q: What volume of oxygen gas is produced when 29.4 g of mercury(II) oxide reacts completely according…

A: The given chemical equation is: 2 HgO (s) → 2 Hg (l) + O2 (g) Given mass of HgO = 29.4 g  Molar mass…

Q: a sample of NH3 is added to an initially evacuated 2.00L flask at 125 degree celsius, until the…

A: The balanced reaction of ammonia and oxygen can be given as

Q: An atmospheric chemist studying the pollutant SO2 places a mixture of SO2 and O2 in a 1.14−L…

A: The volume and pressure of mixture of SO2 and O2 is 1.14 L and 1.98 atm, respectively. The…

Q: The following are properties of an ideal gas; EXCEPT, A. molecules are points in space (no volume)…

A: To identify: The incorrect property of the ideal gas.

Q: Is the relationship between pressure and temperature direct or inverse? Explain

A:

Q: At 118oC, the pressure in a 12.0 L flask is 847 mm Hg. How many moles of gas are in the flask?

A: The ideal gas equation is shown below:P V = n R T Where; P = pressure of the gas V= volume of the…

Q: You are given two containers, each with the same number of moles but of two different gases.  After…

A: The two gases can be differentiated by their specific heat capacity.

Q: At 25.0° C, a 10.00 L vessel is filled with 5.16 atm of Gas A and 7.89 atm of Gas B. What is the…

A: Answer:- This question is answered by using the simple concept of calculation of mole fraction using…

Q: 238.15L of gas at 841.5 torr and 85.1°C is heated until the temperature reaches 134.1°C.  and the…

A: According to the ideal gas law, the volume of a gas is directly proportional to the number of moles…

Q: C,HBO7(s) +3 NaHCO3(s) + H2O(1) --> NagCgHgO7(s) + 3H2O(I) + 3CO2(g) 228.2 g C6H807(s) is reacted at…

A: Given Temperature = 265 K Volume = 158 L Mass of C6H8O7 = 228.2 g Molar Mass of C6H8O7 = 192.1 g/mol

Q: What volume of oxygen gas is produced when 28.2 g of mercury(II) oxide reacts completely according…

A:

Q: A 1.42-g sample of helium and an unknown mass of O2 aremixed in a flask at room temperature. The…

A: Since the Temperature and volume are same for both He and O2  And from ideal gas equation we know…

Q: A sample of gas contains 0.1400 mol of CH4(g) and 0.2800 mol of O2(g) and occupies a volume of 19.6…

A: Gay-Lussac's Law of Gaseous Volume:-When gases react together to form other gases and when all…

Q: At 1.29 atm and 29.54∘C, a 3.14 g sample of gas occupies a volume of 1.70 ×103 mL. Calculate the…

A: Given, P= 1.29 atm  Mass = 3.14 g Volume = 1.70 ×103 mL T = 29.54∘C

Q: A sample of gas contains 0.1700 mol of CH4(g) and 0.1700 mol of H2O(g) and occupies a volume of 19.2…

A: Given: Initial moles of CH4 = 0.1700 mol Initial moles of H2O = 0.1700 mol Initial volume of gas =…

Q: The label on a cylinder of a noble gas became illegible, so a student allowed some of the gas to…

A:

Q: A 144.6 mL sample of O2 gas at 509.6 torr is compressed at constant temperature to 87.5 mL. Predict…

A:

Q: .Calculate the total pressure of a mixture of gases in atm., each of which exerts the given partial…

A: We are authorized to answer one question at a time. Since you have not mentioned which question you…

Q: If 2.3 moles of water decomposes to it's constituent gasses at 2.49 atm. What is the partial…

A: 'As you have posted different multiple question. We will solve only first one aa per our guideline.…

Q: collected in a reaction where 215mL of oxygen gas is collected over water at a temperature of 25 ∘C…

A: We will use ideal gas equation to get the answer.

Q: A sample of gas contains 0.1700 mol of NH,(g) and 0.2125 mol of O,(g) and occupies a volume of 21.8…

A: Given: The number of moles of NH3 (g) is 0.1700 mol The number of moles of O2 (g) is 0.2125 mol The…

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.