Oxygen gas (O2) is collected over water at 21oC and a total pressure of 1.05 atm. What total volume of gas  in milliliters must be collected to obtain 0.0586 g of O2, if at 21oC the vapor pressure of water is 18.65 torr?

Q: hydrogen gas generated from the reaction of aluminum with hydrochloric acid was collected over water…

A: Given: The volume of the hydrogen gas collected over water = 21.8 mL The pressure of the hydrogen…

Q: How many moles of neon gas are present in a container at STP with a total volume of 23.9 L?

A: Volume of Ne gas using which number of moles of Ne gas is to be determined.

Q: An elodea plant, commonly found in tropical fish aquaria, was found to produce 5.0 * 10^22 molecules…

A: Number of molecules of oxygen produced by elodea plant per hour = 5.0 x 1022 molecules

Q: If 0.500 mol of helium gas occupies 5.00 L at 25 °C, what is the pressure in atmospheres?

A: Given details, n = 0.500 mol V = 5.00 L T = 25 °C = 298 K R = 0.08205 L.atm/mol.K To calculate the…

Q: At what temperature in oC does 0.505 moles of gas occupy a volume of 8.15 Liters at a pressure of…

A: According to ideal gas law's, ratio of product of Pressure and volume to the product of temperature…

Q: What volume (in L) does a 1.34 g  sample of chlorine gas occupy at SATP?

A: Ideal gas equation is equation which obeys gas law under all conditions of temperature and pressure.

Q: How many moles of neon gas are present in a container at STP with a total volume of 34.6 L?

A: Expression use to find number of moles for ideal gas,  PV = nRT Where ,  P = Pressure V = Volume  R…

Q: If you pack a bag of potato chips for a snack on a plane ride, the bag appears to have infl ated…

A:

Q: What is the molarity of the cleaning solution formed when 10.0 L of ammonia gas at 33oC and 735 torr…

A: Given details, Initial volume (V1) = 10 L = 0.01 m3. Final volume (V2) = 0.750 L Temperature (T) =…

Q: Oxygen gas (O2) is collected over water at 21oC and a total pressure of 1.05 atm. What total volume…

A: The number of moles of oxygen gas can be calculated as follows-

Q: If an experimental reaction, 32.5 mL were collected of hydrogen gas at 32.5 degrees Celsius and…

A:

Q: Calculate the molecular weight (mass) of a gaseous element if 0.480 g of the gas occupies 367 mL at…

A: Given,  Mass of the element = 0.480 g  Volume, V = 367 mL = (367/1000) = 0.367 L  Pressure, P = 365…

Q: A nitrogen sample occupies 246 mL at STP. If the same sample were collected over water at 25°C and…

A: For the phase change of the ideal gas the temperature, pressure, and volume of the initial state and…

Q: Acetylene (C₂H₂, an important fuel in welding, is produced in the laboratorywhen calcium carbide…

A: The formation of acetylene takes place as follows: Total pressure is due to the partial pressure of…

Q: .A sample of carbon dioxide occupies a volume of 6.70 liters at 105 kPa pressure. What pressure…

A: Given data, V1=6.70 LV2=3 LP1=105 kPa To calculate the new pressure.

Q: A sample of hydrogen fluoride gas occupies 1250 mL at STP. What is the pressure in mm Hg if the…

A: Given details, At STP, V1=1250 mLT1=273KP1=1 atmV2=255 mLT2=573 K To calculate the final pressure.

Q: 8. How many moles of argon atoms are present in 15.7 L of argon gas at STP?

A: Given values, at STP, Volume of Ar= 15.7 L  We know the molar volume at STP = 22.4L/mol

Q: A sample of air contains 78.08% nitrogen, 20.94% oxygen,0.05% carbon dioxide, and 0.93% argon, by…

A: Given information The composition of gases in the air by volume is:  Nitrogen = 78.08 % Oxygen =…

Q: What would be the molar mass of a gas for which 2.43 x 10-2g occupies a volume of 7.68 mL at STP?

A: Given that, volume of gas at STP, V = 7.68 mL = 0.00768 L Mass of gas at STP, m = 2.43×10-2 g Molar…

Q: A gas sample weighing 19.66 g occupies a volume of 7.85 L at STP. What is the molar mass of this gas…

A: The ideal gas equation is given as:

Q: Acetylene gas, C2H2(g), can be prepared by the reaction ofcalcium carbide with water:CaC2(s) + 2…

A: The vapor pressure of water at 23oC is 21.07 torr. The number of moles (n) of CaC2 is calculated as…

Q: A sample of a certain gas has a volume of 452 mL at 711 mm Hg and 26 °C. What would be the volume of…

A: Given: Volume V1= 452 mL Pressure P1 = 711mmHg= 711/760= 0.935 atm Temperature T1 = 26oC= 26+ 273 =…

Q: A 0.200-g sample of cobalt metal reacted with hydrochloric acid according to the following balanced…

A: The given reaction is: Co (s) + 2HCl (aq) → CoCl2 (aq) + H2 (g) The molar mass of Co = 59g/mol Molar…

Q: Using the ideal gas law, how many grams of sodium azide are required to inflate an airbag to 67 L of…

A: 2 mol Azide will  give 3 mol of N2  At STP 1 mol of N2 occupy 22.4 L

Q: 0.125 g of Neon is in a 225.0 ml flask at 22.5°C. Determine the pressure in the flask in atm and in…

A: Given: Mass of Neon = 0.125 g Molar mass of Neon = 20.1797 g/mol Volume = 225.0 mL = 0.225 L…

Q: What is the total pressure of air in lungs of an individual with oxygen at 93 mmHg, nitrogen at 565…

A: This question can be solved on the prior knowledge of the Daltons Law of Partial Pressure. It states…

Q: You have 110 mL Ar(g) at 14 °C and 735 Torr. How many moles of Ar(g) are present?

A:

Q: A sample of argon gas collected at a pressure of 546mmHg and a temp of 277k has a mass of 37.0…

A: Pressure =546 mmHg=(546/760) atm=0.718atm Temperature =277 K Mass= 37.0 grams Volume=?

Q: A sample of carbon dioxide occupies 475 mL at a temperature of 19 ºC and a pressure of 375 mm Hg.…

A: Given Volume, V1= 475ml Temperature,T1= 19ºC = 284K Pressure,P1= 375mm Hg Final condition:…

Q: Hydrogen gas is produced when zinc reacts with sulfuric acid:Zn(s) + H2SO4(aq)------>ZnSO4(aq) +…

A: According to the gas equation, P V = n R T … (1) Substituting the values in eq (1),  {1 L * torr =…

Q: A sample of oxygen occupies 47.2 liters under a pressure of 1240 torr at 25oC. What volume would it…

A:

Q: The total pressure exerted by a mixture of O2, N2, and He gases is 1.50 atm. What is the partial…

A: Given: The total pressure exerted by a mixture of O2, N2, and He = 1.50 atm The partial pressure of…

Q: What mass of helium gas (in g) occupies 11.5 L at STP?

A:

Q: 5. A certain mass of oxygen was collected over water when potassium chlorate was decomposed by…

A: When a gas is collected over water some water vapors are also present along with the gas. In such…

Q: Calculate the partial pressure (in Torr) of Hg if a 50.40 g sample of nitrogen-mercury vapor at 23°C…

A:

Q: If standard atmospheric pressure is 14.7ln/in^2, calculate what a pressure of 1.72lb/in^2 would be…

A:

Q: What is the mass of a piece of magnesium wire that produces 48.7 mL of hydrogen gas collected over…

A: Reaction:  Mg(s) + 2H+(aq) ---> 2Mg (aq) + H2 (g) 1 mol of H2 gas is produced by 1 mol of Mg…

Q: A 40.0 L tank of ammonia has a pressure of 0.13atm. Calculate the volume of the ammonia if its…

A: Given- Initial Volume of tank(V1) =  40.0 L Initial Pressure of tank(P1) = 0.13atm Final pressure of…

Q: Iron oxide, FeO2, is produced by the reaction Fe + O2 ® FeO2 (87.8 g/mol). How many grams of FeO2…

A:

Q: A sample of carbon dioxide occupies a volume of 6.70 litres at 105 kPa pressure. What pressure would…

A:

Q: What pressure will be exerted by 0.450 moles of a gas at 25°c if it is contained in a vessel whose…

A: We can calculate the pressure of gas using the ideal gas equation. PV = nRT

Q: What volume (in liters) of air measured at 1.00 atm would have to be put into a bicycle tire with a…

A:

Q: 62.0 g of nitrogen at 100oC is in a 155.0 L container. How much nitrogen, in grams, must be removed…

A: Answer is explained below.

Q: A piece of magnesium reacts with an aqueous solution of HCl to produce H2 gas. The hydrogen gas is…

A: Answer: When hydrogen gas is collected over HCl, solution it would also be containing water vapor in…

Q: Suppose 554 mL of argon at 785 torr is cooled from 25.0 °C to -134.0 °C. What will be the volume of…

A:

Q: The hydrogen produced from the reaction between zinc and hydrochloric acid is collected over water…

A:

Q: A 5.00 mol sample of oxygen gas is confined to a pressure of 5atm at a temperature of 27degrees…

A: Given  O2 gas Moles of O2 gas, n = 5.00 mol Pressure of O2 gas , P = 5 atm Temperature of O2 gas , T…

Q: 6. A certain mass of oxygen was collected over water when potassium chlorate was decomposed by…

A:

Q: A gas has a volume of 0.500 L at 752 mm Hg and 37oC. What is its volume at STP?

A:

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.