sample of nitrogen gas is produced in a reaction and collected under water in a graduated cyliner.  The temperature is 26.3 oC and the volume of gas is 44.3 mL.  During this experiment the total pressure in the graduated cylinder is 749 mm Hg.  How many grams of nitrogen were collected?  (The vapor pressure of water at 26oC is 25.2 torr.)

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

A: The given data contains, density =1.25 g/L Pressure =170 mm Hg =0.223684 atm Temperature =25°C =298…

Q: An ideal gas in a sealed container has an initial volume of 2.65 L. At constant pressure, it is…

A: Charles' law states that the volume of a fixed amount of gas is directly proportional to the…

Q: Solid manganese and nitrogen gas react to form solid manganese(IV) nitride. Write a balanced…

A: When solid manganese reacted with nitrogen gas, then Manganese(IV) nitride formed as product. A…

Q: You are doing research on planet X. The temperature inside the space station is a carefully…

A: From gas laws, P1V1/T1 = P2V2/T2 P1 = initial pressure = 761 mm Hg = 761/760 = 1.0013 atm V1 =…

Q: Sulfuric acid is essential to dozens of important industries from steelmaking to plastics and…

A: Burning reaction of solid sulfur and its ICE table is given below.

Q: A helium balloon, assumed to be a perfect sphere, has a radius of 27 cm. At room temperature (20…

A: Fpr perfect gas : PV = nRT P = pressure of gas V = volume of gas R = gas constant T = temperature  n…

Q: A container of N2O3(g) has a pressure of 0.395 atm. When the absolute temperature of the N2⁢O3⁡(g)…

A:

Q: Ammonia, NH3, burns in oxygen gas according to the reaction: 4NH3(g) + 5O2(g) → 4NO(g) + 6H2O(l).…

A: Since oxygen gas is present in excess, ammonia is the limiting reagent in the given reaction. A…

Q: The temperature of a sample of an ideal gas confined in a 2.0L container was raised from 27ºC to…

A:

Q: " A sample of gas contains 0.1600 mol of CH4(g) and 0.3200 mol of O₂(g) and occupies a volume of…

A: Given: Initial moles of CH4 = 0.1600 mol Initial moles of O2 = 0.1600 mol Initial volume of gas =…

Q: Oxygengascanbegeneratedbyheatingpotassiumchloratetoyieldoxygengas and potassium chloride. If 85.0 g…

A:

Q: 5. An experiment is performed to measure the mass percent of Caco,(s) in eggshells. Five different…

A: The extent of reaction is studied with help of the Le Chatelier principle. According to this if…

Q: Carbon monoxide gas reacts with hydrogen gas to form methanol via the following reaction:…

A:

Q: A chemist weighed out 5.14 gm of a mixture containing unknown amounts of BaO (s) and CaO(s) and…

A: Given values are the following. Pinitial of CO2=750 torr=750760 atm=0.987 atmPfinal of CO2=230…

Q: The pressure in Denver, Colorado (5280-ft elevation), averages about 24.5 in. Hg.  Convert this…

A: The objective of this question is to convert the pressure from inches of mercury (in. Hg) to…

Q: When heated, potassium chlorate decomposes to potassium chloride and oxygen gas according to the…

A: The objective of this question is to calculate the number of moles of potassium chlorate in the…

Q: The reaction of metallic aluminum with aqueous hydrochloric acid produces hydrogen gas. 2 Al(s) + 6…

A: The balanced reaction taking place is given as,

Q: A reaction between liquid reactants takes place at 2.0 °C in a sealed, evacuated vessel with a…

A: • No. of moles = Given massMolar mass• PV = nRT⇒ P = nRTVWhere,P → PressureV → VolumeT →…

Q: A piece of sodium metal reacts completely with water as follows: 2Na(s) + 2H,O(1) → 2N2OH(aq) +…

A:

Q: In a rigid 2.0 L container, a solid catalyst is used to convert ammonia into nitrogen and hydrogen…

A: Given: Initial Pressure P1 = 2.56 atm Initial Temperature T1 = 25 oC= 298 K Final Temperature T2 =…

Q: Carbon monoxide gas reacts with hydrogen gas to form methanol via the following reaction: CO(g)2H2…

A: The number of moles (n1) of CO (g) inside the 1.50 L reaction vessel at 305 K is calculated as shown…

Q: Calcium perbromate, Ca(BrO,), (m.w.= 327.9 g/mol) decomposes upon heating to release oxygen gas…

A:

Q: Carbon monoxide gas reacts with hydrogen gas to form methanol via the following reaction:…

A: The given reaction is, CO(g)+2H2(g)→CH3OH(g) Given: volume = 2.00 L Temperature= 305 K Partial…

Q: Calculate the volume of the sample after the reaction takes place, assuming that

A: Balanced chemical reaction,  CH4 + H2O -----> 3H2 + CO Moles of CH4 = 0.1100 mol Moles of H2O =…

Q: 5. You are given 1.56 g of a mixture of KClO3 and KCl. When the mixture is heated the oxygen gas…

A: In the given question we have to calculate the percentage of KClO3 in the mixture,  first of all, we…

Q: The average kinetic energy of the molecules in a gas sample depends only on the temperature, T.…

A: Rms speed is known as root mean square speed ,it obtained by taking root of average square speeds of…

Q: A 5.00L flask is used to collect a 10.50 gram sample of propane gas, C3H8. After the gas was…

A:

Q: the moles of the metal carbonate reacted.

A:

Q: You conducted an experiment in which you measured the molar volume of an ideal gas at STP. In this…

A: Mg (s) + 2 HCl (aq) →̀MgCl2 (aq) + H2 (g).The hydrogen gas was collected in a tube that contained…

Q: Sometimes in lab we collect the gas formed by a chemical reaction over water (see sketch at right).…

A:

Q: 4. Hydrogen gas (a potential future fuel) can be formed by the reaction of methane with water…

A: Given: Volume of methane = 25.5 L Pressure of methane gas = 732 torr = 0.96316 atm temperature of…

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

A: Given that   Initial temperature = T1 = 15.0 °C = 15.0 + 273.15 = 288.15 K    Final temperature = T2…

Q: reaction

A:

Q: A mixture of helium and carbon dioxide gases, in a 7.08 L flask at 81 °C, contains 1.17 grams of…

A: First the partial pressure of helium in the flask is calculated.

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.