A 6.75 g sample of potassium chlorate (KClO4) is heated and decomposes into potassium chloride and oxygen gas. The oxygen is collected over water in a lab with an atmospheric pressure of 758.6 torr.  If the system is at 26°C and 1.00 L of gas is collected, what is the partial pressure of the wet oxygen gas (in torr)? How many moles of oxygen are collected?  Vapor pressure of water at 26°C is 25.2 torr.

Q: Fe(s) + H2SO(aq) → FeS0.(aq) + H2(g) The volume of the balloon was 4.8 x10° L. What mass of Fe was…

A: Equation can be written as: Fe(s)+H2SO4→FeSO4(aq)+H2(g) Molar mass of Fe = 56 g/mol H2 = Molar mass…

Q: A mixture of cyclopropane gas, C3H6, and oxygen, O2, in a 1.00:4.00 mole ratio is used as an…

A: Answer :- 84800 Pa  The partial pressure of O2 = 84800 Pa.…

Q: A sample of gas contains 0.1600 mol of HBr(g) and 0.08000 mol of Cl₂ (g) and occupies a volume of…

A: As per Dalton's law, volume and number of moles are directly proportional to each other.

Q: At 0 degrees C, a 1.0-L flask contains 5.0×10−2 mol N2, 1.5×102 mg O2, and 5.0×1021 molecules of…

A: Given, volume of flask V =1.0 Ltemperature T =0°C =273.15 Knumber of moles of N2 =5.0×10-2 mol =0.05…

Q: Chloroform is a common liquid used in the laboratory. It vaporizes readily. If the pressure of…

A: The given data contains, density =1.25 g/L Pressure =170 mm Hg =0.223684 atm Temperature =25°C =298…

Q: b. How many moles of hydrogen are in this sample?

A: An ideal gas equation is derived from the combination of Charle's law, Boyle's law, and Avogadro…

Q: In 2000, Transport Canada reported that thousands of cars sold in the Atlantic provinces between…

A:

Q: Xenon fluoride can be prepared by heating a mixture of Xe and F2 gases to a high temperature in a…

A: Let us consider the reaction between xenon and fluorine produces the compound XeaFb, where a and b…

Q: A sample of an ideal gas at 1.00 atm and a volume of 1.91 L was placed in a weighted balloon and…

A: We have given that initial Pressure (P1) = 1 atm Volume (V1) = 1.91 L And after dropping into the…

Q: A student performs an experiment like the one you saw in Experiment 8.  The student determines the…

A: Given,  Pressure of oxygen is 0.7811 atm Volume of oxygen is 217 ml = 0.217 L Temperature = 298.15 K…

Q: A mixture of 3.0 g H2(g) and 12.0 g He(g) in a 7.0 L flask is maintained at 0 ∘C. What is the total…

A: According to ideal gas law, PV = nRT where P = total pressure of gas mixture V = volume = 7 L n =…

Q: If 60.0 grams of carbonic acid are sealed in a 2.00 L soda bottle at room temperature (298.15 K) and…

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: A sample of an ideal gas at 1.00 atm1.00 atm and a volume of 1.53 L1.53 L was placed in a weighted…

A:

Q: A sample of an ideal gas at 1.00 atm1.00 atm and a volume of 1.28 L1.28 L was placed in a weighted…

A: according to boyl's law at constant temperature pressure is inversely proportional to volume

Q: Three monoatomic gases (neon, argon, and an unknown gas) are allowed to mix at room temperature…

A:

Q: 11. Synthesis gas, which is used in the production of ammonia and methanol, among other uses, is…

A: Since PV = nRT  where P = pressure in atm V = volume in L  n = moles  R =  0.0821  T = temperature…

Q: Cyclists sometimes use pressurized carbon dioxide inflators to inflate a bicycle tire in the event…

A: It is given that:Mass of carbon dioxide = 16.0 gVolume = 3.85 LTemperature = 300 K

Q: 2Na(s) + 2H2O(1)→2NaOH(aq) +H2(g) The product gas, H2, is collected over water at a temperature of…

A:

Q: Calcium carbide reacts with water to produce acetylene gas according to the following equation: CaC₂…

A: Reaction :

Q: A 2.50 liter flask at a temperature of 28.5 °C was used to collect gaseous propane (C 3H8). After…

A: Answer:- This question is answered by using the simple concept of calculation of mass of a gas using…

Q: lorine is widely used to purify municipal water oplies and to treat swimming pool water. ppose that…

A: Given that: V1 = 8.60L P1 = 890 torr T1 = 25°C = 25°C+273 = 298K V2 = 6.90L T2 = 56°C = 56°C+273 =…

Q: A tank contains a mixture of 14.6 g of argon gas and 9.69 g of neon gas at 27 °C. The total pressure…

A: We are having 9.69g Neon & 14.6g Argonnoof moles of Neon present = weight of Neon(g)Molar mass…

Q: Which of the following is true for a gas under conditions of very low temperature? PV ÷ nRT = 1,…

A: To solve this problem we have to know about ideal gas equation.

Q: Oxygen gas can be prepared by heating potassium chlorate according to the following equation:…

A:

Q: Hydrogen gas (a potential future fuel) can be formed by the reaction of methane with water according…

A: Given data contains, Volume of methane gas is 25.5L. Pressure of methane gas is…

Q: A gaseous mixture contains 408.0 Torr H2(g),408.0 Torr H2(g), 392.7 Torr N2(g),392.7 Torr N2(g), and…

A: Total pressure of gases present in sample (Ptotal) is calculated as follows,

Q: A sample of sulfur hexafluoride gas occupies 9.10 L at 198 °C.  Assuming that the pressure remains…

A:

Q: A sample of an ideal gas at 1.00 atm1.00 atm and a volume of 1.24 L1.24 L was placed in a weighted…

A: According to Boyle's Law, at constant temperature the volume of given amount of gas is inversely…

Q: A sample of an ideal gas at 1.00 atm1.00 atm and a volume of 1.66 L1.66 L was placed in a weighted…

A: Initial pressure, P1=1.00 atm The initial volume, V1=1.66 L Final pressure, P2=10.0 atm The final…

Q: For many purposes we can treat butane (C,H10) as an ideal gas at temperatures above its boiling…

A: Given information: Butane is assumed as an ideal gas Volume = 100 mL Initial temperature (T1) = 42…

Q: States of Matter = Using the combined gas law For many purposes we can treat butane (C4H10) as an…

A: The objective of the question is to determine if it is possible to change the temperature of butane…

Q: what was the volume of the sample?

A: According to the Boyle's Law ; at constant temperature the pressure exerted by an ideal gas is…

Q: A sample of 0.225 mole of gas has a volume of 748 mL at 28°C. Calculate the pressure in atm of this…

A:

Q: Liquid nitrogen trichloride is heated in a 2.50 L clo. gaseous elements. The resulting gas mixture…

A: Given :- Liquid nitrogen trichloride is heated in a 2.50-L closed reaction vessel until it…

Q: A commercial mercury vapor analyzer can detect, in air, concentrations of gaseous Hg atoms (which…

A:

Q: A sample of an ideal gas at 1.00 atm and a volume of 1.59 L was placed in a weighted balloon and…

A: Given, P1= 1.00 atm V1 = 1.59 L P2 = 80.0 atm V2 = ?

Q: Consider a gas mixture composed of 0.200 mol N2, 0.0800 mol O2, and 0.0200 mol Ar.  The total…

A: Mole N2= 0.200  Mole O2= 0.0800  Mole Ar= 0.0200    Total mole= 0.200+0.0800+0.0200  Total mole=…

Q: A sample of gas isolated from unrefined petroleum contains 90.0% CH4, 8.9% C2H6, and 1.1% C3H8 at a…

A: The given data contains, CH4 =90.0%Ethane=8.9%Propane =1.1%Total Pressure =307.2 kPa

Q: A mixture of cyclopropane gas (C3H6) and Oxygen (O2) in a 1.00 to 4.00 mole ratio is used as an…

A: Given that the mole ratio of cyclopropane and oxygen in the mixture is 1:4 respectively. The partial…

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.