Automobile air bags inflate during a crash or sudden stop by the rapid generation of nitrogen gas from sodium azide. 2NaN3(s) →2Na(s) + 3N2(g) How many moles of sodium azide are needed to produce sufficient nitrogen to fill a 50.0 L air bag to a pressure of 1.25 atm at 25°C? Select one: a. 5.31 mol b. 1.70 mol c. 4.92 mol d. 2.56 mol e. 3.83 mol

Q: A flask that can withstand an internal pressure of 2500 torr, but no more, is filled with a gas at…

A: Given data is as follows: The final pressure of the flask P2 = 2500 torr The final temperature of…

Q: 5. Three 1.00 flasks at 25.0 °C and 1 atm pressure contain: CH4 (flask A), CO2 (flask B) and NH3…

A: The number of moles of a gas depends on the temperate, pressure, and volume of the gas. It does not…

Q: A 2.25 L vessel at 23°C contains three gases: N2, H2, and Og. The system contains 2.40 g of N2,…

A:

Q: Hydrogen gas generated by the following reaction is collected at 25.0 °C and fills a 10.0 L vessel…

A: Given :  2Al(s) + 6HCl(aq) → 2AlCl3(aq) + 3H2(g)  Volume of H2 = 10.0 L  Pressure = 1.00 atm…

Q: When heated, solid potas 0₂ (8) unbalanced equation: KCIO3(s) → KCI) + f 20.8 g of potassium…

A:

Q: A gas storage cylinder in an ordinary chemical laboratory measures 5.7 cm wide and 23. cm high. This…

A: Introduction: Pressure: Pressure is defined as the force applied on a body. The force is applied…

Q: A gas storage cylinder in an ordinary chemical laboratory measures 7.3 cm wide and 29. cm high. This…

A: Given, Width of the cylinder = 7.3 cm Height of the cylinder = 29 cm Pressure of Nitrogen gas = 18.6…

Q: What is Ideal Gas Law 2. Give the different Laws.(6 laws) 3. Give practical examples of each law.…

A: Question 1 -  Ideal gas law - - > The ideal gas law states that the product of pressure and the…

Q: Some N₂ gas is mixed with some O₂ gas, and the sketch below shows a representative sample of the…

A: The mole fraction (f) of a species is defined as the ratio between the number of molecules or moles…

Q: Reaction Stoichiometry Involving Gases 71. Consider the chemical reaction: C(s) + H2O(8) CO(g) +…

A:

Q: Hydrogen gas is generated by reacting lithium metal with excess HCI. How many grams of lithium metal…

A: The balanced reaction taking place is given as, => 2 Li (s) + 2 HCl (aq) -----> H2 (g) + 2…

Q: A cylinder is filled with 10.0 L of gas and a piston is put into it. The initial pressure of the gas…

A:

Q: A 6.00 L tank at 29.9 °C is filled with 6.33 g of sulfur tetrafluoride gas and 12.3 g of sulfur…

A:

Q: 4.- Fluorine gas initially at 12 L, .9 atm, and 35°C undergoes a change so that its final volume and…

A: Given that Initial pressure = P1 = 0.9 atm Initial volume = V1 = 12 L Initial temperature = 35 °C =…

Q: A 2.99 L flask contains c6h6 at a pressure of 244 mm Hg and a temperature of 25 °C. Suppose o2 gas…

A:

Q: A 9.00 L tank at 23.9 °C is filled with 6.76 g of boron trifluoride gas and 4.61 g of sulfur…

A:

Q: Determine the volume of O2 (at STP) formed when 50.0 g of KCIO3 decomposes according to the…

A:

Q: In preparation for a combustion demonstration, a professor fills a balloon with equal molar amounts…

A:

Q: In the reaction 2KClO3(s) --> 2KCl(s) + 3O2(g) If 22.4 L of oxygen at STP are needed, how many…

A: Potassium chlorate decomposes into potassium chloride and oxygen on heating. The equation for the…

Q: Some Ny gas is mixed with some O₂ gas, and the sketch below shows a representative sample of the…

A: In a mixture of various gas, mole fraction can be calculated as the ratio of moles of a particular…

Q: A certain amount of chlorine gas was placed inside a cylinder with a movable piston at one end. The…

A: Boyle's Law :-  It states that, at constant temperature the pressure of fixed mass of a gas is…

Q: Ancient Romans built often out of bricks and mortar. A key ingredient in their mortar was quicklime…

A:

Q: Calculate the mass of 4.55 L of HCl gas at STP.

A: 1. one mole of any gas at STP occupies 22.4 L is called as Gram molar volume ' standard pressure = 1…

Q: 2. If the excess salt is dissolved in water, it will reform carbamic acid. At 350K, carbamic acid…

A:

Q: The skeleton chemical equation for the reaction of nitrogen gas with hydrogen gas to produce ammonia…

A: The first step is to balance the chemical equation. The balanced equation for the reaction of…

Q: 1. A gas system consists of 2.10 x 10-3 g of CO2, 3.88 x 103 mol of N2, and 5.25 x 1020 molecules of…

A: Mass of CO2 = 2.10 ×10-3 g Moles of N2 = 3.88×10-3 moles molecules of CO = 5.25 × 1020 molecules…

Q: What is the total pressure in atmospheres of a gas mixture that contains 1.00 g H2 and 8.00 g Ar in…

A: Mass of H2 = 1 g Molar molar of H2 = 2 g mol-1 Mass of Ar = 8 g Molar molar of Ar =  40 g mol-1…

Q: Consider the following  4Fe(s) +3O [down]2 (g)---> 2Fe[down]2 O[down]3 (s)  it takes 1.67L of…

A: Stoichiometry relates all reactants-products moles through their stoichiometric number and deals in…

Q: Consider the following reaction at STP: 2 H2S(g) + SO2(g) → 3 S(s) + 2 H2O(g) How many liters of…

A: The Volume of Water formed when 51 grams of H2S reacts completely at STP can be calculated as…

Q: 11. In the presence of a catalyst, potassium chlorate decomposes and provides a very simple way to…

A: Given;

Q: Consider the following gas phase reaction. 4HCl(g) + O2(g) -> 2Cl2(g) + 2H2O(g) What mass of…

A: We have to calculate the mass of Cl2 produced from 400 ml of HCl measured at STP.

Q: A 10.0 L container at 19 °C contains 32.0 g CH4 and 15.0 g C2H6. What is the total pressure of the…

A:

Q: is one of the products. The gas has a density of 1.83 g/L at 1.00 atm and 20°C. What are the mola s…

A: Given, Density of gas = 1.83 g/L Pressure = 1.0 atm Temperature = 20°C  Molar mass = ?

Q: Part A) Fill out the following table   Part B)You have a 1.50 L weather balloon at 35.5 oC and…

A:

Q: When 25.0 g of potassium chlorate (KCIO3) decomposes, how many L of O2 gas are formed at STP? Refer…

A:

Q: The balanced equation for the decomposition of potassium chlorate is shown below. When carried out…

A: Note: As per our guidelines, we are supposed to answer only one question. Kindly repost other…

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.