Oxygen gas can be prepared by heating potassium chlorate according to the following equation:2KClO3(s)2KCl(s) + 3O2(g)The product gas, O2, is collected over water at a temperature of 20 °C and a pressure of 741 mm Hg. If the wet O2 gas formed occupies a volume of 8.97 L, the number of moles of KClO3 reacted was _____ mol. The vapor pressure of water is 17.5 mm Hg at 20 °C. Find the number of moles of KClO3 reacted.

Q: 4.00 mol CO2 is placed in a 6.00 L container at a temperature where 12.3% of it decomposes. What is…

A: Number of moles of CO2= 4.00 Mol Volume of CO2 = 6.00 L

Q: 27.   1.20 g of a gas compound containing C, H and S in 2.10 L. flask has the pressure of 108  mmHg…

A: Given, Mass of gas compound = 1.20 g Volume of flask = 2.10 L Pressure = 108 mm Hg Temperature =…

Q: 5. Three 1.00 flasks at 25.0 °C and 1 atm pressure contain: CH4 (flask A), CO2 (flask B) and NH3…

A: The number of moles of a gas depends on the temperate, pressure, and volume of the gas. It does not…

Q: A balloon contains 2,758mL of helium gas at 75.2°C. What is the final volume, in liters(L), if the…

A: Since, you have multiple questions so I will solved first question for you please post separately…

Q: Determination #1 Determination #2 Determination #3 Final NaOH Burette Reading 37.65 mL 28.35 mL…

A: The neutralization reaction between NaOH and H2SO4 is represented as  2NaOH(aq)+ H2SO4(aq)---->…

Q: 9. Copper (I) sulfide reacts with pure oxygen copper (I) oxide and sulfur dioxide. a closed system…

A: In a balanced chemical reaction, stoichiometry gives the relationship between the amount of…

Q: Consider the following chemical reaction: CO2(g) + NaOH(aq)  ---------> Na2CO3(s) + H2O(l) CO2(g)…

A: Initial moles of CO2 taken can be calculated using the ideal gas equation.

Q: The pressure in Denver, Colorado (5280-ft elevation), averages about 24.8 in.Hg . 1. Convert this…

A: Given: The pressure in Denver, Colorado (5280-ft elevation)= 24.8 inHg We have to convert this…

Q: C 2.1 mol He (g) 2.8 atm F 1.9 mol Kr (g) 1.6 atm elect the set of graphs below that show the…

A: The objective of the question is to select the graphs that show the distributions of the speed of…

Q: Consider the reaction of ferrous sulfide with a dilute acid: FeS(s) +2HCI(aq)¬H2S(g)+FeCl2(I) An…

A: The reaction of ferrous sulfide with dilute acid HCl is written as follows: FeS(s) + 2HCl(aq)…

Q: 18. The balanced equation for ammonia production shown below is important for the fertilizer…

A:

Q: Multiple-Choice Questions 1. Determine the density of NO gas at 101 kPa and 35 °C in g dm. A 0.012…

A:

Q: If 63.8 grams of carbonic acid are sealed in a 2.00 L soda bottle at room temperature (298.15 K) and…

A:

Q: NH, (g) + HCl(g) NH,CI(s) 1.87 g sample of NH, gas and a 4.87 g sample of HCl gas are mixed in a…

A: Mole= mass/molar mass Use stoichiometry of the reaction to get mass of ammonium chloride.

Q: A. Molar Volume of Hydrogen Gas mass of magnesium 0.150 g 0.139 g volume of hydrogen gas 158 ml 141…

A: References: General Chemistry Textbooks:Tro, Nivaldo J. Chemistry: A Molecular Approach. Provides a…

Q: Determine the volume of O₂ (at STP) formed when 50.0 g of KCIO3 decomposes according to the…

A:

Q: A container of O2 gas at 75 °C has a volume of 3.5 liters at 1.3 atm. What is the new volume of the…

A: Given :-  Initial pressure (P1) = 1.3 atm  Initial volume (V1) = 3.5 L Final pressure (P2) = 0.80…

Q: Sulfur dioxide gas and oxygen gas react as follows: 2SO2(g) + O2(g)--->2SO3(g) Initially, the…

A: The number of moles of gas (n) can be determined by using the ideal gas equation. PV  =  nRTP  =…

Q: Determine the volume of O2 (at STP) formed when 50.0 g of KCIO3 decomposes according to the…

A:

Q: Zinc metal reacts with excess hydrochloric acid to produce hydrogen gas according to the following…

A: Given: The total pressure (Ptotal) is 754 mm Hg The vapor pressure of water PH2O is 23.8 mm Hg The…

Q: 02--> MgO* Mg+ 13. Balance the following equation: Your answer 14. Using the equation in number 13,…

A: Note: Since you posted  multiple Question. We will solve the first question for you. If you want any…

Q: A certain amount of chlorine gas was placed inside a cylinder with a movable piston at one end. The…

A: Boyle's Law :-  It states that, at constant temperature the pressure of fixed mass of a gas is…

Q: A sample of nitrogen gas was collected via water displacement. Since the nitrogen was collected via…

A: Given, a sample of nitrogen gas was collected via water displacement. The total pressure of mixture…

Q: A 55.8 g sample of AsF5(g) is introduced into an evacuated 10.5 L container at 105°C. i. What is the…

A:

Q: The generic reaction occurs in a closed container: 2A(g) +B(g) → 2Ce) A reaction mixture initially…

A:

Q: 1. Hydrogen cyanide, HCN, is a poisonous gas allegedly purchased by Lizzie Borden in August 1892. It…

A: Given that the partial pressure of water at 30 °C = 31.8 mmHg Given that the total pressure of the…

Q: 132. A 5.00-L reaction vessel contains hydrogen at a partial pressure of 0.588 atm and oxygen gas at…

A: Q. 133. Given: Partial pressure of hydrogen gas = 0.588 atm Partial pressure of oxygen gas = 0.302…

Q: Aluminum reacts with chlorine gas to form aluminum chloride according to the reaction below.  2 Al…

A:

Q: O number of molecules.

A: Answer: equal volume propane and carbon monoxide at the same temperature and pressure have the…

Q: What is the density of CH4 gas at 134 °C and at 737 mmHg? (1 atm = 760 mmHg) OA 0.0290 g/L OB.3.73…

A:

Q: 13. Balance the following equation: Mg + 02 --> MgO

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

Q: A sample of He gas (3.0 L) at 5.6 atm and 25 °C was combined with 4.5 L of Ne gas at 3.6 atm and 25…

A: In this question first to find the total number of mole of gases then using the ideal gas equation…

Q: 14. Using the equation in number 13, when 0.25 moles of Mg reacts with excess oxygen, how many moles…

A: Number of moles = mass/ molar mass  Production of number of moles of product depends on the number…

Q: 15. A 25.6 L sample of gas at 300 K is heated until its volume becomes 51.2 L. Assuming pressure is…

A: If the pressure of a gas is kept constant, then according to the Charles law we can determine the…

Q: is one of the products. The gas has a density of 1.83 g/L at 1.00 atm and 20°C. What are the mola s…

A: Given, Density of gas = 1.83 g/L Pressure = 1.0 atm Temperature = 20°C  Molar mass = ?

Q: 1.20 g of a gas compound containing C, H and S in 2.10 L. flask has the pressure of 108  mmHg at the…

A: Given :  Mass of gas= 1.20g Volume=2.10L Pressure in flask= 108mm HG  Temperature= 25°C= 298K C =…

Q: Consider the reaction below: 2KClO3(s) -2KCl(s) + 30₂(g) Given Molarmass: KClO3 (122.6 g/mol); KCl…

A:

Q: 4. Complete these statements. a. When the amount of gas in a sealed flask is doubled, the pressure…

A:

Q: Q1: T) Sample of aluminum was reacted with HCI solution to produce H: gas according to the data find…

A: According to Q&A guidelines of Bartleby, we are supposed to answer only the first question out…

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.