le of helium gas occupies 0.315 L at 300 kPa. More pressure is applied from the surroundings and the final pressure becomes 200 kPa, whereas the temperature remains unchanged. O 31.5 L 0.473 L 0.213 L 0.192 L

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: A sample of gas contains 0.1400 mol of N2(g) and 0.4200 mol of H2(g) and occupies a volume of 19.9…

A: At constant temperature and pressure volume of a gas is directly proportional to the moles of gas.…

Q: A sample of gas contains 0.1200 mol of N2(g) and 0.3600 mol of H2(g) and occupies a volume of 28.7…

A: Answer: 14.35 L is the volume of the sample after the reaction take place.    Given, Initially:…

Q: A sample contains 10.5 g N2 (MW = 28.02 g/mol), 6.5 g He (MW = 4.00 g/mol), and 34.6 g CO2 (MW =…

A: Given : Mass of N2 = 10.5 g Mass of He = 6.5 g Mass of CO2 = 34.6 g And total pressure of mixture =…

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

A: Given : Volume = 300 ml Pressure = 685torr Mass of bulb = 1.45g

Q: A 1.65 g sample of an unknown gas at 45 °C and 1.10 atm is stored in a 1.25 L flask. What is the…

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: The combustion of octane, C, H, proceeds according to the reaetion shown. 18 2 C,H18() + 25 O,(g) →…

A:

Q: A container of N,0,(g) has a pressure of 0.455 atm. When the absolute temperature of the N,O,(g) is…

A: The answer to this question is as follows------- Pressure is directly proportional to temperature…

Q: potassium chlorate is needed to produce 20.0 mL of oxygen gas at 700. mmHg and 20. °C? 1leent dlaite

A: Volume = 20 mL = 0.020 L Pressure = 700 mm Hg     = 700/760 = 0.921 atm Temperature = 20 °c = 293 K…

Q: P4(g) + Br2(g) --> PBr3(g) If 18.2 L of phosphorus at 21 oC and 1.02 atm is reacted with 62.4 L…

A: Reaction's stoichiometry obtained by numbers associated to species in balanced equations tells us…

Q: A 2.65 g sample of an unknown gas at 75 ∘C and 1.10 atm is stored in a 2.65 L flask. What is the…

A:

Q: 341 L of a gas at 10oC are under 309 kPa of pressure. If the pressure is changed to 611 kPa and the…

A:

Q: What volume of gas is produced when 16.0 g of lithium reacts with 30.0 mL of water? Assume that the…

A: Given, Mass of Li  = 16.0 g  Volume of water = 30.0 mL  Density of water = 1.00 g/mL  Pressure =…

Q: Suppose that 78.0 mL of H2 gas is produced at 20.0oC by the reaction of 0.0764 g magnesium and the…

A: Molar volume of gas : volume of one mole of a gas is called molar volume.

Q: Magnesium burns in air to produce magnesium oxide, , and magnesium nitride, . Magnesium nitride…

A: Stoichiometry , in balanced chemical reaction defines the ratio at which reactants are reacting to…

Q: 0.9110 grams of an unknown gas was placed into an evacuated 0.500 L container. The temperature was…

A:

Q: Suppose 10.05 mol of Ar gas are pumped into a 1.01 L container at 293.15 K. part 1:Calculate the…

A: Here we are required to find the pressure of Argon gas both ideally and non ideal scenario

Q: Calculate the number of grams of Mg that reacted to produce hydrogen gas with a volume of 17383 mL…

A:

Q: A 1.35 g sample of an unknown gas at 53 °C and 1.05 atm is stored in a 2.75 L flask. What is the…

A: Given: Pressure = 1.05 atm  Volume= 2.75 L  R = gas constant = 0.0821 L atm mol-1K-1 T = temperature…

Q: Nitric oxide (NO) reacts with molecular oxygen as follows:   2NO(g) + O2(g) →2NO2(g)   Initially NO…

A: Given data: Volume of NO= 3.92 L, Pressure=0.500 atm Volume of O2= 2.09 L, Pressure of O2=1.00 atm…

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: 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: Consider the following reaction: 2CuCl2 (s) --> 2CuCl (s) + Cl2 (g) 13.44 g of CuCl2 (mol. wt. 134.4…

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 3.35 g sample of an unknown gas at 31 °C and 1.00 atm is stored in a 1.85 L flask. What is the…

A: Given data, mass of the sample of an unknown gas=3.35 g Temperature(T)=31℃=(31+273)K =304 K…

Q: Aluminum reacts with chlorine gas to form aluminum chloride. 2Al(s)+3Cl2(g)→2AlCl3(s) What minimum…

A: Determine the number of moles of aluminum. The molar mass of aluminum is 27 g/mol. Number of moles…

Q: Nitrogen and hydrogen react in the Haber process to form ammonia. All substances are in the gas…

A: Given: Pressure of N2 taken = 0.357 atm. Pressure of H2 taken = 0.81 atm. And percent yield of the…

Q: A 1.25 g sample of an unknown gas at 81 °C and 1.00 atm is stored in a 1.05 L flask. What is the…

A: Given, mass of unknown gas sample m = 1.25 g            temperature T = 81 °C = 81+ 273 K = 354 K…

Q: A 2.35 g sample of an unknown gas at 51 °C and 1.05 atm is stored in a 1.35 L flask. What is the…

A: Given, mass of a unknown gas sample (m) = 2.35 g Temperature (T) = 51°C = (51 + 273.15) K = 324.15 K…

Q: c For the following set of pressure/volume data, calculate the missing quantity. Assume that the…

A: We know for an ideal gas, pressure, volume and temperature are related by the ideal gas equation as-…

Q: A sample of gas contains 0.1300 mol of H2(g) and 6.500×102 mol of 02(g) and occupies a volume of…

A: Volume of the gas is directly proportional to the number of moles of the gas at constant pressure…

Q: A 2.00 L pocket of air at sea level has a pressure of 100 kPa.  Suppose the air pocket rises and…

A: Initial volume = V1 = 2.00 L Initial pressure = P1 = 100 kPa   Volume after expansion (final volume…

Q: Calculate the density of hydrogen gas (in g/L) at 899 mmHg and 42.4 °C. ______ g/L

A: According to ideal gas law PV = nRT Where , P = pressure V = volume n = moles of gas R = gas…

Q: What is the mass (in grams) of an unknown gas (molecular weight = 295 g/mol) that is contained in a…

A:

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: The decomposition of 30.354 g of potassium chlorate yields solid potassium chloride and oxygen gas…

A:

Q: 4.00 g of hydrogen peroxide (MM = 34.02 g/mol) is placed in a sealed 252 mL container at 504 K. What…

A: Given data,Mass of H2O2=4.00gVolume=252mL=0.252LTemperature=504K

Q: A 3.25 g sample of an unknown gas at 37 °C and 1.00 atm is stored in a 1.85 L flask. What is the…

A: Mass of sample = 3.25 g Volume = 1.85 L Temperature = 37 ◦C or 310.15 K Pressure = 1 atm

Q: A sample of gas contains 0.2000 mol of CH4(g) and 0.4000 mol of O2(g) and occupies a volume of 24.0…

A: The given reaction is as follows, CH4(g) + 2O2(g) ----> CO2(g) + 2H2O(g) The given information…

Q: A 2.65 g sample of an unknown gas at 21 °C and 1.10 atm is stored in a 1.05 L flask. What is the…

A:

Q: Calculate the number of grams of Mg that reacted to produce hydrogen gas with a volume of 16303 mL…

A:

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: 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: A 2.25 g sample of an unknown gas at 79 C and 1.05 atm is stored in a 1.45 L flask, What is the…

A:

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

A:

Q: A 3.85 g sample of an unknown gas at 73 °C and 1.05 atm is stored in a 1.35 L flask. What is the…

A:

Q: A sample of gas contains 0.1500 mol of CO(g) and 0.1500 mol of N0(g) and occupies a volume of 11.5…

A:

Q: A 3.05 g sample of an unknown gas at 21 °C and 1.10 atm is stored in a 1.95 L flask. What is the…

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.