The rms speed of methane molecules at 45.0 °C is ______ m/sec.

Q: What volume of N2 can I produce with only 10g of NaN3? Assumption: Pressure: 1atm Temperature:…

A: Given :-  6NaN3-> 2Na3N + 8N2  Mass of NaN3 = 10 g  Temperature = 298 K  Pressure  = 1 atm To…

Q: If an unknown gas sample is known to travel twice as fast at CO2 which traveled 14.00 cm in 12.00…

A: Rate of CO2 gas, r1 will  be- Rate of Unknown gas, r2 will be twice of rate of CO2 gas that is-

Q: The volume of a balloon (V) and the pressure on that balloon (P) are related by the equation:…

A:

Q: Calculate the Molecular weight of a 3.39 liter sample of an unknown gas with a mass of 68.87 grams…

A: Equation at STP is   PV = nRT   ….(1), Where P = 1atm , and T =  273 K, V = 3.39 L, Substitute all…

Q: At an ocean depth of 76.2 m, the pressure is about8.4 atm. Convert the pressure to mm Hg and kPa…

A: Given that the pressure of the ocean is 8.4 atm. To convert the pressure to mm Hg and kPa units.

Q: Perform the conversions. 970.5 mmHg atm 2.091 atm = Torr 408.4 kPa = atm 1220.6 mmHg Pa =

A:

Q: If the rms speed of a specific gas,X, at 300k is 450m/s, obtain the rms spear of molecules of X at…

A: Ans

Q: The rms speed of the molecules of a gas at 137 C is 191 m/s. Calculate the mass ? of a single…

A:

Q: Dry ice is sometimes used for special effects to form a "fog" as it sublimes from the solid to the…

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

Q: As a woman walks, her entire weight is momentarily placed on one heel of her high-heeled shoes.…

A:

Q: What is the density, in g/L, of He at 114.5 C and 4.82 atm

A: The ideal gas equation is given by an expression as shown below:

Q: a rate of effusion th

A:

Q: Speed of molecules affects the rate of effusion. O True O False

A: * effusion is pass of molecule  through small hole . * Greater the speed of molecule greater is the…

Q: Compare the length of a column of mercury to that of a column of water required to produce a…

A:

Q: standard pressure CONVERT 29.17inches of Hg to Pa

A:

Q: Calculate the rms speed of an oxygen gas molecule, O2, at 21.0 °C. Express your answer numerically…

A: The given data : The temperature of the gas = 21°C The value of R  8.314 J/mol×K To determine =The…

Q: find the pressure is exerted Jug 782.99 of CH4 in 0.730 Lsted container 1760 8 ka الحه 9

A: Given, mass of CH4 = 782.9 g we know, molar mass of CH4 = ( 12.01 g/mol + 4 x 1.008 g/mol ) = 16.042…

Q: Calculate the average kinetic energies of H2(g) molecules at 5 °C and at 150 °C.

A: The answer to the following question is-

Q: Perform the conversions. 818.3 mmHg 0.596 atm = %3D atm Torr 426.8 kPa = 1309.6 mmHg = atm Pa

A:

Q: Determine the ratio of the mean speeds for H2 molecules to Ar atoms at 20°C.

A: The two gases are given H2 and Ar. Temperature of each gas is T = 20°C

Q: An unknown gas in a balloon weighs 73.53 g. The balloon occupies 20.00 L at 22.0 °C and 1056 mm Hg.…

A: Given the mass of gas =73.53 gvolume of gas =20.00 Ltemperature =22.0 °C =(22+273) K =295 Kpressure…

Q: In a certain laboratory which tests the purity of certain gases, nitrogen was collected over water…

A: given P is 97.30 kPa. v=? T= 23 °C.= 296K

Q: the time required for given volume of Nitogen molecule to duffuse through an orifice is 35 seconds.…

A: Use concept of grams law of diffusion t2/t1=M.w2/M.w1 And get the answer.

Q: In a certain laboratory that tests the purity of certain gases, nitrogen was collected over water at…

A: The question is based on the concept of Dalton's law of partial pressure. it  states that total…

Q: Ammonia is produced industrially by reacting N2 with H2 at elevated pressure and temperature in the…

A:

Q: Which of the following gas samples have the greatest average molecular speed at 25°C? A) Kr B) CH,…

A: Average molecular speed (Cavg): The average speed of the molecule can be determined by using the…

Q: The effusion rate of an unknown gas is measured and found to be 31.50 mL/min. Under identical…

A: Given : Rate of effusion of unknown gas = 31.50 mL/min. And rate of effusion of O2 gas = 30.50…

Q: A balloon will burst at a volume of 2.69 L. If it's partially filled at 15.2ºC and 69 cm Hg to…

A:

Q: Calculate the density of CH4(g) at 120 °C and 0.600 atm

A: The required relationship is given below.

Q: A sample of 25.0 mL of liquid methanol (MW: 32.04 g/mol, density: 0.8501 g/mL) is reacted with 10.0…

A: Density = mass/volume  So, mass = density × volume  Number of moles = mass/molar mass   Ideal Gas…

Q: The typical pressure of carbon dioxide in an unopened soda can is 2.63 × 10° torr. Calculate the…

A: The conversion factor to convert torr into mmHg is as follows: 1 mmHg1 torr Determine the amount of…

Q: How much a spherical helium balloon of 10 diameter contains when the temperature is at 15°C and…

A:

Q: Perform the conversions. 743.5 mmHg %3D atm 0.981 atm = Torr 420.4 kPa = 795.2 mmHg = atm Pa

A: Recall the following relations among various units 760 mmHg= 1 atm760 torr=1 atm101.325 kPa=1…

Q: Determine the density of PH3 at 63.6 C∘ and 0.453 atm.

A: We can calculate density of PH3 gas assuming Ideal gas behaviour.

Q: What is the rms speed of carbon tetrachloride molecules at 25.00C?

A:

Q: An empty flask has a mass of 48.293g and 48.612g when filled with acetone vapor at 80°C and 728mmHg.…

A: Molecular weight of acetone can be calculated from the number of moles of acetone present.

Q: At STP a sample of gas with a mass of 28.9 grams occupies 12.3 L. What is the molar mass of this…

A: At STP,  Temperature (T) = 273.15 K Pressure (P) = 1 atm Mass of gas (m) = 28.9 g Volume (V) = 12.3…

Q: What is the initial volume of a perfect gas sample at 25 °C to be used in order to reduce the sample…

A: Introduction The initial volume can be calculated by the application of Charles's Law. When pressure…

Q: the molar volume of any ideal gas at STP is 2.4 L t or f

A:

Q: What is the density of air at 762 mmHg and 32°C? the molar mass of gases in air is 29g/mol.( please…

A: The density of a gas can be calculated by using the ideal gas equation. The ideal gas equation is…

Q: Calculate the root mean speed of N, at 173C? Answer to 0 decimal places.

A: The objective of the question is to find out root mean speed of N2 at 173 C.

Q: For O2 at 1 atm and 298 K, what fraction of molecules has a speed that is greater than vmp?

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.