How many moles of krypton gas must be added to a 250 ml incandescent light bulb to yield a gas pressure of 200 kPa at 20.0o

Q: Convert 287 kPa to atm 287   kPa

A: As we know that, 1 kPa = 1000 Pa Therefore, 287 kPa = 287 × 1000 Pa = 287000 Pa   Also, 1 atm =…

Q: What volume would 1 mole of an ideal gas occupy at 250C and 101.325 kPa?

A: The ideal gas equation - P V = n R T here,  P is the pressure of the ideal gas in atmospheres. V is…

Q: What is the initial pressure of a gas if it occupied a volume of 0.375 L, but now occupies a volume…

A: PV= nRT  P1/V1=P2/V2

Q: At what temperature will 12.00g of Cl2 exert a pressure of 754.4 kPa at a volume of 752 mL?

A:

Q: Calculate the volume of a balloon that can be filled at 1.00 atm with the helium in a 2.50-L…

A:

Q: Assume that a spherical balloon is filled with Hydrogen gas, H2, until its radius is 1.00 m at 25oC…

A: We are given  radius of ballon =1 mtemperature =25°CPressure =101 kPa

Q: A sample of phosphorus that weighs 3.243 × 10−2 g exerts a pressure of 31.89 kPa in a 56.0-mL bulb…

A:

Q: ● At 30.0 °C, Pvapor = 31.8 mmHg ● R = 0.08206 L-atm/mol-K = 62.36 L-torr/mol-K ● MWAl = 26.98 g/mol…

A: We would use stoichiometric relations to calculate experimental mass of aluminium used .  Then using…

Q: Acetylene gas can be produced by slowly reacting calcium carbide with water. CaC2(s) + 2H2O(l) ➡…

A: Given :  The given chemical reaction is  CaC2(s) + 2H2O(l) ➡ C2H2(g) + Ca(OH)2(s)   Mass of CaC2 =…

Q: How many liters of fluorine gas are needed to form 683 L of sulfur hexafluoride gas if the following…

A:

Q: What is the density of oxygen gas at 25 degree C and 120 kPa?

A:

Q: At what temperature are 1.9 moles of gas held at a pressure of 115 kpa in a container with a volume…

A: 1.9 moles of gas are held at 115 kPa in volume 50 L, we need to find the temperature of gas. n = 1.9…

Q: What is the total pressure (atm) for a mixture of 0.0524 mol N2, 0.0436 mol O2, and 0.0108 mol Ar in…

A:

Q: You fill a rigid steel container with a volume of 20 L with nitrogen gas to a pressure of 2000 kpa…

A:

Q: A sample is contained in a 1.5-L container where its pressure is 100 kPa and the temperature is…

A:

Q: What pressure will be exerted by 25g  of CO2 at a temperature of 25 C and a volume of 500mL

A:

Q: Find the mole fraction of neon in a mixture with total pressure 3.9 atm, volume 8.7 L, temperature…

A:

Q: How many liters of fluorine gas are needed to form 353 L of sulfur hexafluoride gas if the following…

A: The ideal gas equation is PV = nRT  P = pressure V = volume  n = moles of gas = mass/molar mass R =…

Q: What volume in liters of fluorine gas is needed to form 103 L of sulfur hexafluoride gas if the…

A: The ideal gas equation is  PV = nRT  P = pressure  V = volume of gas n = moles of gas R = gas…

Q: How many grams of zinc must be added to a 100-milliliter solution of 6.00 M HCl(aq) to produce 219…

A: Here, we have to calculate the mass of zinc that must be added to a 100-milliliter solution of 6.00…

Q: Calculate the density of uranium (VI) fluoride, UF6, at 70.0 °C and 25.0 kPa.

A: density of uranium (VI) fluoride, UF6 = d = ................ Molar mass of UF6 = M = 352 g/mol…

Q: A mixture of neon and argon gases exerts a total pressure of 690.4 kPa.If the partial pressure of…

A: Given:Total pressure of gas mixture, Pt=690.4kPaPressure of Neon gas, PNe = 3214.8mm HgTo…

Q: A sample of argon gas occupies a volume of 0.065 m at 101.3 kPa and 25.0°C.What volume would the…

A:

Q: A pressure of 150 KPa is equivalent to how many meters of water? Of mercury (sHg = 13.6)?

A:

Q: How would i calculate the tire pressure at 15.3 C uring the equation of the best fit line? What…

A: The data of pressure v/s temperature is given as,

Q: What will the total pressure be in a 2.50L flask at 25 degrees Celcius if it contains 0.016 mol of…

A:

Q: A 0.479 g sample of nitrogen, oxygen or neon gas occupies a volume of 265 mL at 157 kPa and 20◦C.…

A:

Q: The pressure in a flask containing 15.0 g Ar and 15.0 g Ne is measured and found to be 796 mm Hg at…

A:

Q: At 250 kpa 309K, a sample of gas has a volume of 4.2 L. How many moles of gas are present?

A: The ideal gas equation is  PV = nRT  P = pressure in kPa V = volume in Litres  n = moles  R = gas…

Q: A breathing mixture used by deep-sea divers contains helium, oxygen, and carbon dioxide. What is the…

A: Dalton's law: Dalton's law of partial pressures states that in a mixture of non-reacting gases, the…

Q: A mixture of N2 and CO2 gases has an average molar mass of 32.8 g/mol. What is the partial pressure…

A:

Q: A 1.00 g sample of gas occupies 250 mL at 273 K and 1.00 atm. Calculate the molar mass of the gas.

A: Provided amount of gas(w)=1g Volume of gas= 250ml Or, volume of gas(V)=0.25litre Temperature…

Q: A gas has a pressure of 655 kPa at 227°C. What temperature is required to decrease the pressure to…

A:

Q: What pressure in atm is equivalent to 105.2 kPa?

A:

Q: A 0.479 g sample of nitrogen, oxygen or neon gas occupies a volume of 265 mL at 157 kPa and 20°C.…

A:

Q: Carbon dioxide gas is collected in a laboratory experiment to determine the molar mass of the…

A: For experimental molar mass calculation use ideal gas equation PV = nRT  P = pressure  V = volume n…

Q: A sample of CO2 occupies a volume of 14.87 liters at 140.5 kPa. What pressure in kPa would the gas…

A:

Q: 4. A gas mixture of helium and oxygen has a total pressure of 600kPa. What is the partial pressure…

A: Each constituent gas has a partial pressure in a gas mixture that is the hypothetical pressure of…

Q: Calculate the partial pressures of carbon dioxide and argon when the total atmospheric pressure is…

A:

Q: A mixture composed of 60%CO2 and 40%He by volume analysis is contained at 0.5MPa. What is the…

A:

Q: What volume of an ideal gas is present when 2.3 mol of that gas is under 254 kPa of pressure at 39ᵒC

A: Ideal gas equation :-  PV = nRT  P= pressure of gas  V = volume of gas  n = number of moles of gas…

Q: From the experiment, it was found that the external pressure was 1.05 atm at 30.0 °C, and the volume…

A: Metal reacts with acid to given Hydrogen gas.  To calculate the pressure of dry air , pressure of…

Q: Carbon dioxide gas is collected in a laboratory experiment to determine the molar mass of the…

A: For CO2 gas, Temperature, T = 294 K Pressure, P = 1.01 atm Mass, m = 1.008 g Volume, V = 500 mL =…

Q: What volume of water vapour (in L) will be produced during the production 178 L of hydrogen cyanide?…

A:

Q: What volume would 20.0g of CO2 occupy at a temperature of 25 °C and a pressure of 105 kPa?

A:

Q: A balloon contains 0.0475 mol He, 0.0252 mol H2, 0.771 mol N2, and 0.270 mol O2. The total pressure…

A:

Q: A gas at constant temperature occupies a volume of 2.40 dm3 and exerts a pressure of 110 kPa.  What…

A:

Q: What volume in liters of fluorine gas is needed to form 475 L of sulfur hexafluoride gas if the…

A: Given;

Q: iron(s) + hydrochloric acid(aq) ---> ferric chloride(aq) + hydrogen(g) How many grams of iron are…

A: The reaction taking place is given as, => Iron (s) + Hydrochloric acid (aq) ------> Ferric…

Q: The pressure 25.0 meters under water is 347 kPa. what is this pressure in mmHg?

A: Given that: Pressure = 347kPa We know that: 1atm = 760mmhg

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.