Calculate the number of moles of carbon dioxide gas present in a 1.50 L flask at STP.   A sample of carbon monoxide initially at 93.0 °C was heated to 186 °C. If the volume of the carbon monoxide sample is 979.7 mL at 186 °C , what was its volume at 93.0 °C?     What pressure is exerted by 984.0 g of CH4 in a 0.680 L steel container at 140.0 K?     Calculate the volume, in liters, occupied by 0.219 mol of oxygen gas at STP.

Q: The pressure on 2.50 L of anesthetic gas changes from 787.5 mmHg to 303.8 mmHg. What will be the new…

A: Ideal gas equation PV = nRT   P = Pressure V = Volume n = Moles R = Gas constant T = Temperature

Q: The pressure of a sample of argon gas was increased from 2.91 atm to 7.75 atm at constant…

A: The initial volume is identified by using the new pressure, new volume and initial pressure since…

Q: A sample of an ideal gas at 1.00 atm and a volume of 1.09 I was placed in a weighted balloon and…

A: To find out the new volume of an ideal gas, use the formula of Boyle's law and find out the volume…

Q: The pressure of a sample of argon gas was increased from 1.86 atm to 6.70 atm at constant…

A:

Q: 1.An empty 2.00 L soda bottle is filled with 35.2 grams of gaseous CO2.  Calculate the temperature,…

A: Answer:- Firstly using the ideal gas equation, PV = nRT, moles of the gas and pressure, temperature…

Q: The volume of a sample of hydrogen gas was decreased from 11.97 L to 5.26 L at constant temperature.…

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

Q: The volume of a sample of hydrogen gas was decreased from 10.57 L to 3.86 L at constant temperature.…

A: Given :-  Initial volume = 10.57 L Final volume = 3.86 L Final pressure = 8.79 atm  To calculate :-…

Q: A sealed 5.00 L flask is filled with xenon (131.3 g/mol), krypton (83.79 g/mol) and argon (39.95…

A:

Q: None

A: Step 1Determine the volume of the flask using the mass of water and the density of water at 18.0∘C.…

Q: What volume of gas is produced when 16.0 g of lithium reacts with 30.0 mL of water? Assume that the…

A: Given, Mass of Li  = 16.0 g  Volume of water = 30.0 mL  Density of water = 1.00 g/mL  Pressure =…

Q: An ideal gas in a sealed container has an initial volume of 2.80 L. At constant pressure, it is…

A: At constant pressure and amount, the combined gas law states that: V1T1=V2T2    ............... (1)…

Q: A sample of hydrogen gas at 282 K experiences a change in volume from 3.79 L to 3.65 L. If its new…

A: Recall the following expression          P1V1T1=P2V2T2Here initial pressure of hydrogen gas is P1atm…

Q: A 0.6333 g sample of a metal carbonate was reacted with hydrochloric acid. The carbon dioxide gas…

A: Given data, Mass of sample = 0.6333 g temperature = 26.0oC Volume of gas over water = 103.80 kPa…

Q: The pressure of a sample of argon gas was increased from 2.58 atm2.58 atm to 7.42 atm7.42 atm at…

A: Boyle's law :-  It states that , for a fixed mass of gas pressure is inversely proportional to…

Q: A 280-mL flask contains pure helium at a pressure of 748 torr. A second flask with a volume of 460…

A:

Q: What volume of gas is produced when 16.0 g of lithium reacts with 30.0 mL of water? Assume that…

A: The reaction is as follows; 2Lis+2H2Oaq→2LiOHaq+H2g 1 mol of H2O reacts with 1 mol of Li 18 g of H2O…

Q: A sample of 257.0 mL of wet nitrogen gas was collected over water at a total pressure of 759 torr…

A:

Q: A sample of nitrogen gas had a volume of 500. mL, a pressure in its closed container of 740 torr,…

A: According to ideal gas law, the volume of a gas is directly proportional to the number of moles,…

Q: The volume of a sample of hydrogen gas was decreased from 12.01 L to 5.30 L at constant temperature.…

A:

Q: A reaction between liquid reactants takes place at 33.0 °C in a sealed, evacuated vessel with a…

A:

Q: A balloon that is filled with gas was released at ground level. At ground level where the pressure…

A: Ideal gas equation gives the relation between pressure (P), volume (V), temperature (T) and number…

Q: When 8.56 g of neon is combined in a 21.27 L container at 92.1oC with 32.55 g of argon, what is the…

A:

Q: When 4.67 L of carbon dioxide at 485.6 mmHg and 25.0 ℃ is heated to 475.0 ℃ and converted to 754.2…

A: Given P1 = 485.6 mmHg V1 = 4.67 L T1 = 25°C P2 = 754.2 mmHg V2 = ? T2 = 475°C

Q: The volume of a sample of hydrogen gas was decreased from 13.68 L13.68 L to 6.97 L6.97 L at constant…

A: Given data,Initial volume(V1)=13.68LFinal volume(V2)=6.97LFinal pressure(P2)=9.11atm

Q: A 2.00 L sample of helium originally at 25 oC and a pressure of 745 torr is allowed to expand to a…

A: In all the gas laws (Boyle's, Charles' and Gay-Lussac's Law), pressure (P) and volume (V) remain in…

Q: What is the experimental molar mass (that is, calculated from the data given and not taken from the…

A: To calculate the molar mass of Mg , we would first calculate moles of hydrogen produced using ideal…

Q: Hydrogen gas, oxygen gas, and water vapor are collected in eudiometer. The eudiometer contains…

A:

Q: Determine the mass, in kg, of HgO that must decompose to form 78.4 L O2 gas at STP.    2HgO(s) →…

A: To solve this problem we have to calculate the mass of HgO .

Q: A volume of 0.70 L of air at 37 ° C is expelled from the lungs into cold surroundings at  4.9 ° C.…

A: Given V1 = 0.7 L T1 = 37°C = 37+273 = 310°K V2 = T2 = 4.9°C = 273+4.9 = 277.9°K

Q: A sample of oxygen gas was collected over water at a barometric pressure of 757.2 mm Hg and a…

A:

Q: What is the experimental molar mass (that is, calculated from the data given and not taken from the…

A: Given : Mass of Mg = 0.0181 g Volume of hydrogen = 18.53 ml Temperature = 23.3 °C Partial pressure…

Q: A mixture of argon, oxygen, and nitrogen has a total pressure of 725 mmHg. The partial pressure of…

A:

Q: The volume of a sample of hydrogen gas was decreased from 11.09 L to 4.38 L at constant temperature.…

A: Boyle's law This law states that the absolute pressure exerted by a given mass of an ideal gas is…

Q: The Haber Process synthesizes ammonia at elevated temperatures and pressures. Suppose you combine…

A: The balanced chemical equation for the reaction of nitrogen and hydrogen to form ammonia is given by…

Q: 3.00 grams of oxygen gas and 4.00 grams of carbon dioxide gas are collected over water at 50.0 °C in…

A: Given: Mass of oxygen gas = 3.00 g Mass of CO2 gas = 4.00 g Temperature = 50.00C Volume = 15.0L…

Q: A 0.477 mol sample of O gas has a volume of 12.8 L at a certain temperature and pressure. If all…

A: NOTE : In the reaction, the subscripts are missing. Hence I'm considering correct reaction. The…

Q: A sample of 263.0 mL of wet nitrogen gas was collected over water at a total pressure of 756 torr…

A: Introduction :  Molarity is defined as the number of moles of solute dissolved in one litre of the…

Q: For many purposes we can treat ammonia NH3 as an ideal gas at temperatures above its boiling point…

A: This question can be solved using the ideal gas equation. P1V1T1= P2V2T2

Q: A 3.19-g mixture of solid CaO and solid ZnO is reacted in a 2.00-L container with CO2(g) at a…

A: The chemical reactions taking place are: CaO(s)+CO2(g)→CaCO3  (s)-----1ZnO(s)+CO2(g)→ZnCO3(s)…

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.