Which of the following statements are true? Which are false? Why is each true or false? (g) One mole of helium gas (molar mass=4.00g/mol)at STP occupies twice the volume of one mole of hydrogen(molar mass=2.02g/mol). (h) Lowering the diaphragm causes the chest cavity to increase in volume and the pressure of air in the lungs to decrease.

Q: What minimum volume of chlorine gas (at 298 K and 275 mmHg) is required to completely react with…

A: Below attached file showing the details answer. All the best.

Q: If 5.00 L of hydrogen gas,measured at a temperature of 20.0°C and a pressure of80.1 kPa, is burned…

A: The mass of oxygen has to be given, Given: P=80.1 kPa V=5.00 L R=8.31447 L kPa K−1mol−1 T=20.0∘C +…

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

A: Concept: Ideal Gas Equation P*V = n* R*T where n = moles = Mass (m)/ Molar Mass (M) P*V = (m/M) *…

Q: Ammonium nitrate, a common fertilizer, was used by terrorists in the tragic explosion in Oklahoma…

A: The given data contains, Pressure = 1.00 atm. Temperature = 580.15 K mass of ammonium nitrate = 15.0…

Q: What is the temperature, in degrees celcius, of 1.50 moles of neon (Ne) gas confined to a volume of…

A:

Q: What volume of O2 at 798 mmHg and 41 ∘C is required to synthesize 23.0 mol of NO?

A:

Q: What volume of hydrogen and nitrogen are required to produce 20.0 L of ammonia at 37oC and 1.20 atm?

A: We have given that  Volume of ammonia to be produce = V = 20.0L  Temperature = T = 37°C = 310K…

Q: Zinc citrate is used in toothpaste it is synthesized from zinc carbonate and citric acid according…

A:

Q: 4. A 34.0-L cylinder contains 305 g of oxygen gas at 22°C. How many grams of gas must be released to…

A:

Q: A sample of nitrogen is collected by water displacement at 730,0 mm Hg and 20°C. What is the partial…

A: At 20oC vapor pressure of water = 17.5 mm Hg = PwaterTotal pressure = Ptotal = 730 mm Hg According…

Q: 1)How many mL of nitrogen gas is required to completely reacts with 12.0mL of hydrogen gas at…

A:

Q: In CACO3 + HCI → CaCl2 + H2O+ CO2 , how many liters of carbon dioxide gas, measured at STP, can be…

A: Given balanced equation is as follows. CaCO3+2HCl→CaCl2+H2O+CO2 That means 1 mole CaCO3 will produce…

Q: How many moles of Br2 are in one cubic meter (1.00 m3) of Br2 gas at STP?

A: First we consider that Br2 gas obey ideal gas equation :  PV = nRT  n = PV / RT  Where, n = number…

Q: Boron forms a variety of unusual compounds with hydrogen. A chemist isolated 6.3 mg of one of the…

A: Given, Pressure, P = 11 torr = 0.0145 atm Volume, V = 385 mL = 0.385 L Temperature = 25.0 oC = 298 K…

Q: Calculate the volume, in liters, occupied by 0.895 mol of oxygen gas at STP. V = L.

A: Given  Number of mole = 0.895 mole  Volume               = ?

Q: Geraniol is a compound found in rose oilthat is used in perfumes. What is the molar mass ofgeraniol…

A: The ideal gas equation is given by, PV=nRT  where, P= pressure, V=volume, n= number of moles, R= gas…

Q: What mass (in g) of NO2 is contained in a 12.8 L tank at 0.830 atm and 269 K?

A: Ideal gas equation relates pressure (P), volume (V), number of moles (n) and temperature (T). PV=nRT…

Q: A compressed gas cylinder of CO2 gas has a volume of 23.5 L at room temperature (25C) and a pressure…

A: Given, volume of CO2 = 23.5 L Temperature  = 25°C = (273+25) = 298 K Pressure = 650 KPa  = 650/101 =…

Q: Magnesium metal reacts with hydrochloric acid to produce magnesium chloride and hydrogen gas. What…

A: Given: Volume of Hydrogen Gas = 0.25 L Pressure = 1.0 atm Temperature= 0.0 oC To calculate: Mass of…

Q: V = 375 mL at 1.15 atm;  V = ? at 775 mmHg?

A:

Q: 1. How many grams of calcium carbide may be used to prepare 600mL of acetylene gas at STP? 2. a.…

A: The equation regarding the production of acetylene from calcium carbide is  CaC2 + 2H2O --->>…

Q: 3. What volume of O2 at STP can be pumped into a 0.500-L tank at 24.5 degrees Celcius to give a…

A:

Q: Pure oxygen gas was first prepared by heating mercury(II) oxide, HgO: 2 HgO(s) → 2 Hg(1) + O2(g)…

A: Since you have posted multiple questions, we are entitled to answer only the first

Q: How many moles of neon gas occupy a volume of 14.3 L at STP conditions?

A: Approximately 0.64 mole

Q: What is the volume (in L) of carbon dioxide at 1.00 atm and 298.15 k are released from a car's…

A:

Q: How many liters of oxygen are necessary for the combustion of 425 g of sulfur, assuming that the…

A: Chemical equation for the combustion of sulfur is: S+O2→SO2 Hence, 1 mole of oxygen is required to…

Q: Assuming ideal behavior, what is the density of argon gas at STP, in g/L? (Assume STP is 0 °C and 1…

A:

Q: How many liters of hydrogen gas at STP were generated from 52.70 g of zinc metal?

A: Generation of hydrogen gas from 52.0 g of Zn metal.

Q: What volume is occupied by 0.781 mol of CO2 at 237.5 K and 977 mmHg?

A: Write down what information is given to you

Q: How many moles of fluorine gas will be needed to produce 70.7g of aluminum fluoride by reaction with…

A: Given : Mass of Aluminium fluoride=70.7 g To Find: Moles of fluorine gas Solution: The following…

Q: How many grams of solid lithium (Li) must be added to liquid water in order to obtain 99.5 L of…

A: Given: The volume of hydrogen gas (H2) at STP is 99.5 L

Q: Why do deep-sea divers breathe a mixture of helium and oxygen?

A: Oxygen becomes toxic when breathed at pressure, it can cause painful convulsions which underwater…

Q: What is the pressure of 1.51 g of nitrogen gas confined to a volume of 0.105 LL at 30 ∘C?

A:

Q: 12. What is the volume (liters) of 64 g of O2 at STP?

A: Here, we have to find the volume of 64 g of O2 at STP.

Q: What volume, in L, is occupied by 10.0 g O₂ at 298 K at 0.900 atm? SED

A:

Q: 10 How many moleculęs of CO2 gas at 713 mmHg and 56.7°C are present

A: According to the ideal gas equation, PV=nRTP=pressureV=volumeR=gas constantT=temperature

Q: At 25 °C, a gas occupies a volume of 1.20 L under 0.295 atm of pressure. At what temperature will…

A: According to ideal gas equationThe number of moles can be calculated as

Q: What volume, in milliliters, will 5.3 g  of CO2 occupy at STP?

A: GIVEN: Mass of CO2 = 5.3 g At STP, T= 0oC   = 0+ 273K   =273K Pressure, P = 1.00 atm To Calculate:…

Q: A 2.5 L canister under a pressure of 150 kPa at 20 °C is compressed to a volume of 1.5 L at 35 °C.…

A: The answer to the following question is-

Q: What is the theoretical volume of hydrogen gas at STP when 0.956 moles of zinc react with excess…

A: Welcome to bartleby ! We have to calculate volume of hydrogen gas at STP

Q: What is the volume, in milliliters, that 5.70 g of O2 occupies at STP?

A: Apply formula A= (w/Vml)×22400

Q: What volume of CO2 gas is produced in the combustion of 4.34 g CH4 with excess oxygen at STP?

A:

Q: At what the pressure, in atmospheres, that O2 gas at 75°C has a density of 2.00 g/L?

A: According to ideal gas law, PV = nRT where P = pressure V = volume n = moles  R = gas constant =…

Q: How many grams of copper(II) carbonate must be decomposed to produce 18 L of CO2 at STP?

A:

Q: 3. What volume of hydrogen gas at STP is produced as sulfuric acid acts on 24 g of calcium? Ca +…

A: Given data contains, Mass of calcium is 24 g. The given chemical equation is, Ca+H2SO4→CaSO4+H2

Q: How many grams of O2 are present in a sample which occupies 750 mL at 18°C and a pressure of 735 mm…

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

Q: . A gaseous hydrocarbon, in a volume of 25.4 L at 400 Kand a pressure of 3.40 atm, reacts in an…

A: Moles of gaseous hydrocarbon, n= PVRT = 3.40 x 25.4 0.0821 X 400 = 2.63 mol Moles of Carbon atoms =…

Q: In CaCO3 + HCI → CaCl2 + H2O+ CO2 , how many liters of carbon dioxide gas, measured at STP,can be…

A: 1 mole = 6.022×1023 (Avogadro's number ) The mass of one mole of atoms is called atomic mass  For…

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.