4KO2(s) + 2CO2(g) 2K2CO3(s) + 302(g) What is the maximum volume of oxygen that can be produced when 150. mL of CO2 is passed over 0.500 g of KO2 (molar mass = 71.10)? Assume all gases are measured at STP (0 °C and 1 atm). R = 0.0821 L.atm/mol.K. a. 225 mL b. 157 mL C. 475 mL d. 118 mL

Q: A gas sample occupies 350.0 mL at 24oC and 755 Torr. What is its volume in mL at STP? 1 atm = 760…

A: An ideal gas is a hypothetical gas where gas molecules moves randomely without any interparticle…

Q: What volume ofH,0(g) measured at STP is produced by the combustion of 6.50 g of natural gas (CH ) in…

A: Mass of CH4 = 6.50 g Molar mass of CH4 = 16 g mol-1

Q: A container contains 0.50 g of H2(g) and 0.50 g of O2(g). The total pressure in the container is…

A: Given :-  Amount of H2 = 0.50 g  Amount of O2 = 0.50 g  Total pressure = 1.56 atm  To calculate :…

Q: The volume (in liters) occupied by 32.0 g of HCl at STP is A 19.7 L B 27.0 L C) 34.8 L D 21.3 L

A: Please find your solution below :

Q: What pressure (in torr) of carbon dioxide gas can be produced by the combustion of 1.00 g of benzene…

A: As from the balanced chemical equation, the mole ratio of C6H6 to CO2 is 2 : 12, thus it is 1 : 6.…

Q: A container contains 0.50 g of H2(g) and 0.50 g of O2(g). The total pressure in the container is…

A: Given: Mass of H2 = 0.50 g. Mass of O2 = 0.50 g. And total pressure of gases = 1.56 atm.

Q: At 2°C a 1.0-L flask contains 1.0x 10^-2  mole of N2 , 4.0x10^2 mg O2 , and 5.1x 10^21 molecules of…

A: N2 =  1.0x 10^-2  mole = 0.01 mole O2 =  4.0x10^2 mg =400 mg =0.4 g O2 = 0.4 g / 32g/mol = 0.0125…

Q: 1. What pressure must be applied to 225 mL of gas at 1 atm to reduce its volume to 100 ml? 2. A…

A: V1 = 225 mL P1 = 1 atm  V2 = 100 mL P2 = ?   P1V1 = P2V2 1 atm x 225 mL = P2 x 100 mL P2 = 2.25 atm…

Q: A bottle with the volume 4.03 L contains a sample of chlorine gas, Cl2, with a pressure of 198 Torr…

A:

Q: What volume of ammonia gas, measured at 626.0 mmHg and 38.0oC, is needed to make 3.98 g of ammonium…

A:

Q: 1. At what temperature does sulfur hexafluoride have a density of 0.5550 g/L at 0.8210 atm? 2. A…

A: Dalton's Law of Partial Pressure states that the total pressure exerted by a mixture of two or more…

Q: A mixture of He, Ne, and Ar have a total pressure of 558 mmHg. If the partial pressure of He is 341…

A: (a). Given,  Total pressure of He, Ne and Ar mixture = Ptotal = 558 mmHg  Partial pressure of He gas…

Q: is reacted with an excess of H2SO4, what volume of gaseous HF will be produced at a temperature of…

A: CaF2(s) + H2SO4(aq)---->2HF(g) + CaSO4(s) Molar mass of CaF2 =   78 g/mol  P = 780 mmHg = 1.026…

Q: What volume of ammonia gas, measured at 782.0 mmHg and 38.6oC, is needed to make 1.28 g of ammonium…

A: The ideal gas equation is as follows,                                 P V = n R T Where P is the…

Q: What is the volume of 0.824 mol of gas at STP?     3.25 L     18.5 L     5.42 L     8.36 L…

A: The volume of 0.824 mol of gas at STP is determined as,

Q: When chromium metal is added to nitric acid, the following reaction takes place Cr (s) + 6 HNO3 (aq)…

A: Provided temperature=40°C Or, provided temperature=(273.15+ 40)Kelvin Provided temperature…

Q: Aluminum reacts with concentrated hydrochloric acid to produce hydrogen gas. 2 Al(s) + 6 HCI(aq) → 2…

A: Given data contains, At STP, volume of H2 is 502.0 mL. The given chemical equation is, 2 Als+6…

Q: A container with volume 80.0 ml contains water vapor (Mm= 19 g/mole) at a pressure of 10.4 atm and a…

A: Given, Volume of water vapour , V =80.0 mL Pressure , P = 10.4 atm Temperature, T =460°C…

Q: Assume a gas mixture consists of 0.215kg of Xe, 258g of H2, 51.8g of Cl2, and 283g of C6H6. If the…

A:

Q: The brewing industry uses yeast to convert glucose to ethanol. The baking industry uses the carbon…

A: Balanced  reaction  C6H12O6(s)   →yeast     2C2H5OH(l) + 2CO2(g) mass of C6H12O6 = 100.0 gm moles of…

Q: At 1°C a 1.0-L flask contains 1.0 x 10-2 mole of N2, 2.0 x 10-2 mg O2, and 3.1 x 1021 molecules of…

A: For O2 2.0 x 10-2 mg, I think its 2.0 x 102 mg, instead of 10-2 mg but I solved the problem with the…

Q: When solid calcium carbonate is reacted with aqueous hydrochloric acid, the products of the reaction…

A: Given,          Vapor pressure of water = 23.8 mmHg          Total vapor pressure = 911 mmHg…

Q: What volume of chlorine gas at 20.0°C and 95.5 kPa is needed to produce 65.0g of HCI? H2 + Cl2 2HCI…

A: Given the chemical reaction as follows,H2+Cl2→2HClwe are to calculate the volume of chlorine gas at…

Q: How many grams of CaH2(s) is required to prepare 3.00 L H2(g) at STP? CaH2(s) + 2H,0(g) →Ca(OH)2(s)…

A: Number of moles of hydrogen at STP is, No.of moles=Volume of H222.4 LNo.of moles=3.00 L22.4 LNo.of…

Q: The gas of a certain volcano had the following composition in mole percent: 60.0% CO2, 28.0% H2,…

A: To calculate partial pressure of CO2:

Q: chemist

A:

Q: 16 g of Gas 11.2 L 1.0 atm 0°C A sample of a gas in an 11.2 L container is at 1.0 atm and 0 C, as…

A: In the given question we have to identify the gas moles of gas From the given data, it calculated by…

Q: 1. Exactly 500 mL of a gaseous compound at 70.0 cm of Hg and a temperature of 270C has a mass of…

A: Molecular weight (mass) of gas is given by ideal gas equation as                     M = mRTPV…

Q: How many atoms of neon occupy a volume of 14.3 L at STP? 6) Calculate the volume of 13.1 g C4H8(g)…

A:

Q: Q7. A gas mixture that has the following composition in percent by volume: 10.2% CO2, 21.0% CO,…

A: Solution -

Q: C6H12 + 9 O2 ----> 6 CO2 + 6 H2O (OR C6H12 + 9 O2 right arrow 6 CO2 + 6 H2O) How many grams of…

A:

Q: What is the volume in liters of 6.55 moles of CO2 at standard temperature and pressure (STP)? 146.6…

A: Using STP condition and ideal gas equation PV=nRT we can find volume of CO2.

Q: A chemist vaporized a liquid compound and determined its density. If the density of the vapor at…

A: This question can be solved by the use of the following relation of pressure, molar mass, density,…

Q: In a laboratory experiment at 100 °C temperature and 750 mmHg pressure, the measured weight of an…

A: The ideal gas condition is a hypothetical one where the molecules of a particular gas will follow…

Q: Nitric acid can be prepared by bubbling dinitrogen pentoxide into water. N2O5 (g) + H2 O(e) → 2 H†…

A: The molarity is an important method to determine the concentration of a solution. It is generally…

Q: At what temperature (in K) would 1.88 moles of H2 gas have a pressure of 0.94 atm and take up a…

A:

Q: A sample of a gas has a mass of 2.73 g and occupies 3.00 L at 122 oC and 4.00 atm. What is the…

A:

Q: 1. Hydrogen gas can be easily generated in the lab by the following reaction: HCI (aq) - ZnCl₂(aq) +…

A:

Q: A mixture of gases is prepared from  77.7 g of O2 and  19.5 g of H2. After the reaction of O2 and H2…

A: Given: Mass of O2 = 77.7 g Mass of H2 = 19.5 g Temperature of mixture = 138 °C Or temperature of…

Q: What is the mass of the solid NH4Cl formed when 73.0 g of NH3(g) are mixed with an equal mass of…

A: Given : The reactants are NH3 and HCl. Mass of NH3 taken = 73.0 g Mass of HCl taken  73.0 g…

Q: The product gas, O2, is collected over water at a temperature of 20 °C and a pressure of 748 mm Hg.…

A:

Q: A gaseous mixture contains 12.4 g of N2 and 12.4 g of 02 that exerts a total pressure of 1.23 atm.…

A:

Q: Oxygen gas can be prepared by heating potassium chlorate according to the following equation: 2KC10,…

A: we have to calculate the number of moles of KClO3

Q: If an unknown gas has a mass of 1.95 g and occupies a volume of 800ml at 730 mm Hg  and 20 °C what…

A: Given mass of the gas (m) = 1.95 g Volume of the gas (V) = 800 ml = 0.80 L   Pressure exerted by the…

Q: K2CO3 + 2HC2H3O3 = 2 KC2H3O2 + H2O, Find the liters of CO2 gas at STP produced by the reaction of…

A: The complete balanced reaction is shown below, K2CO3 + 2HC2H3O2 → 2 KC2H3O2 + H2O + CO2

Q: Calculate the volume of a gas in a system when 22.0 g of O2 (Molar mass = 32 g/mol) at a pressure of…

A:

Q: How many moles of methane occupy a volume of 2.00 Lat 50.0°C and 0.500 atm? (R = 0.0821 atm•L/mol K)…

A: We have given that Volume of methane = V = 2.0L Temperature of methane = T = 50°C = 323K Pressure of…

Q: A student obtained a mass of 0.266 g CO2 during his experiment. The atmospheric pressure was 751.6…

A:

Q: 4 KO2(s) + 2 CO2(g) →2 K2CO3(s) + 3 O2(g). How much KO2 is needed to react with 75.0 L of carbon…

A: Volume of CO2 is 75 L Amount of KO2 =?

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.