Which of the following gases has the highest average speed at 400K?

Q: Dimethyl ether, CH3OCH3, undergoes gas phase decomposition to form methane, hydrogen gas, and carbon…

A: Solution - Given :- 1) Weight of dimethyl ether= 58.63g 2) Molar mass of dimethyl ether = (2 X…

Q: Which of the following gases would behave most like an ideal gas? O CH4 O C2H6 O C3H8 O C4H10

A: The ideal behavior of individual gases is dependent on the magnitude of intermolecular forces of…

Q: If 34.0 L of a gas is collected at 19 Celcius and 265 kPa, what is its volume at STP?

A: Volume of gas at STP = 83.03 LitreExplanation:Step 1:- Given Temperature(T) = 19 °C Volume( V ) =…

Q: What volume of carbon dioxide is produced when 80.1 g of calcium carbonate reacts completely…

A: the decomposition reaction of chemical carbonate is  represented as  Calcium carbonate   calcium…

Q: A sample of gas contains 0.1700 mol of N2(g) and 0.5100 mol of H2(g) and occupies a volume of 22.6…

A: Nitrogen reacts with hydrogen to form ammonia. The equation for the balanced chemical reaction is…

Q: N2O4 is very unstable, and readily undergoes the following reaction at high concentrations:  N2O4(g)…

A:

Q: A sample of gas contains 0.1600 mol of N2(g) and 0.4800 mol of H2(g) and occupies a volume of 27.7…

A: To solve this problem, we can start by using the stoichiometry of the reaction to determine how many…

Q: Which of the following statements is NOT true regarding kinetic molecular theory?   The average…

A: Answer:The kinetic theory of gases is a set of postulates that tells about the general…

Q: 2.5 L of octane gas, C8H18, is combusted with 20.5 L of oxygen gas and ignited. What volume of…

A: Volume of octane gas = 2.5 L Volume of oxygen gas = 20.5 L Pressure = 0.995 atm Temperature = 22.0oC…

Q: A gas is composed of 85.7% carbon & 14.3% hydrogen. If 1.56 g of this gas occupies a volume of 1.00…

A: Calculation of empirical formula: The given composition of gas contains 85.7% carbon and 14.3%…

Q: Two gases effuse through a hole. If Gas A has 16 times the molecular mass of gas 8, what is the…

A: Using graham's law of diffusion of gases we can solve this problem.

Q: Consider this molecular-level representation of a mixture of gases. If the partial pressure of the…

A: Relation between partial pressure (Pi) of ith gas, mole fraction of  ith gas (Xi) and total press…

Q: A 2.50 g sample of an unknown gas occupies 875 mL at 685 mm Hg and 35 degrees Celcius. What is the…

A: Given: mass of gas = 2.50 g Volume of gas = 875 mL = 0.875 L pressure of gas = 685 mmHg = 0.9013 atm…

Q: Calculate the difference in the two average speeds at 33 C.

A:

Q: average molecular speed in a sam

A: Average molecular speed is inversely proportional to square root of the molar mass. It is:

Q: The volume of a gas at 27.0C and 0.200atm is 80.0mL. What volume will the same gas sample occupy at…

A: Given, Initially, Pressure (P1) = 0.200 atm Volume (V1) = 80.0 mL = 0.08 L Temperature (T1) = 27°C =…

Q: Chlorine is widely used to purify municipal water supplies and to treat swimming pool water. Suppose…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Considering three identical flasks filled with different gasses. Flask A: CO at 760 torr and 0º C.…

A: The average kinetic energy of the molecule can be determined by the following relationship: Kinetic…

Q: A sample of gas occupies a volume of 101mL at 220.0 torrent and 30.5 Celsius. Calculate the volume…

A: Given information: Initial volume (V1) = 101 mL Initial pressure (P1) = 220.0 torr Initial…

Q: speed speed speed MM LA speed speed [] W speed

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Q: Which of the following statements regarding the kinetic molecular theory of gases is NOT correct? O…

A:

Q: A gas‑filled weather balloon has a volume of 51.0 L51.0 L at ground level, where the pressure is 751…

A:

Q: When sodium chlorate (NaClO3) is heated, it decomposes into sodium chloride andoxygen gas. A student…

A: STP means standard pressure (P) and temperature (T) which  mainly corresponds to 1.0 atm and 273…

Q: T/ The images below show three possible paths for a gas molecule moving inside a filled volleyball.…

A: Kinetic theory of gases is a theory which deals with the properties related to the motion of gas…

Q: The graph shows the molecular speed of four gases at 27 °C. What, if any, relationship is observed…

A:

Q: A 22.0-gram sample of impure sodium chlorate was heated until decomposition was complete. The…

A: mass percent of any compound in the sample is the ratio of the the mass of that compound to the…

Q: Which of the following gases has the  highest average speed at 400K?     He      Kr      NO…

A:

Q: At 25°C, the atoms of helium move approximately six times faster than the molecules of an unknown…

A: Given : Speed of helium gas us 6 times faster than the speed of unknown gas. Speed of any gas is…

Q: H2S gas can be produced using the following reaction: Al2S3 + 6 H2O = 3H2S + 2Al(OH)3 If 75.0 g…

A:

Q: Given the equation 2KCLO3(s)-->2KCl(s)+3O2  (g) A 3.00-g sample of KClO3 is decomposed and the…

A: Consider the given information as follows; 2 KClO3 (s)  →  2 KCl (s)   +   3 O2 (g) Mass of KClO3 =…

Q: A sample of nitrogen gas at 298 K and 894 torr has a volume of 31.2 L. What volume will it occupy if…

A: Boyle's law:  According to Boyle’s law, the absolute pressure exerted by a given mass of an ideal…

Q: n moist air, the lighter water molecules have a greater rms average speed than the heavier nitrogen…

A:

Q: Convert 0.955 atm to mm Hg

A: In order to convert atmospheres (atm) to millimeters of mercury (mm Hg), we need to know the…

Q: An unknown gas X effuses 1.39 times faster than C4H10. What is the molecular mass of gas X (in g…

A:

Q: A sample of He occupies a volume of 322 mL at 149.2 kPa. What volume in ml would the gas occupy if…

A: Boyle's gas law states that pressure of gas is inversely proportional to the volume of gas.

Q: what volume of

A:

Q: Bottled gas for recreational vehicles contains propane, C3H8, and butane, C4H10. Which molecules…

A: Graham's law of diffusion is used to explain the relative velocity of different gases at a constant…

Q: A particular gaseous hydrocarbon has a density of 2.33g/L at 23oC and 746mmHg.  Calculate the molar…

A: Introduction:- the molar mass of the gas can be find by using ideal gas equation which is as- P×V…

Q: The density of a noble gas is 10.31 g/L at 3.0 atm and 25.0 ⁰C . Identify the gas

A:

Q: A 0.465 g unknown gas sample occupies 245 mL at 298K and 1.22 atm. What is the molar mass of the…

A: We can solve the problem by the following steps : At first we need to determine the moles of the…

Q: sample of He occupies a volume of 213 mL at 132.3 kPa. What volume in ml would the gas occupy if the…

A:

Q: How many grams of potassium chlorate decompose to potassium chloride and 680. mL of O2 at 128°C and…

A: To calculate the mass of potassium chlorate (KClO3) that decomposes to form potassium chloride (KCl)…

Q: く く く く Indicate whether each of the following relationships between gas variables is direct or…

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

Q: Which of the following gases has the highest average speed at 400K?     H2     He     N2…

A: Average speed is defined as " the ratio of sum of the velocities of all gas molecules to the total…

Q: Mercury(II) oxide decomposes according to the reaction below. 2HgO(s) → 2Hg(1) + O2(g) What volume…

A: Given: Mass of HgO = 150.0 g Pressure = 225 torr Temperature = 22.0oC R= 0.0821 L*atmK*mol Known:…

Q: 52.0 Lof a gas is collected at 29∘C and 285 kPa, what is its volume at STP?

A: Volume(V1) = 52.0 L Temperature(T1) = 302 K Pressure(P1) = 285 kPa At STP, Temperature(T2) = 273 K…

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.