One method for preparing hydrogen gas is to pass HCl gas over hot aluminium: the other product of the reaction is AlCl3. If you wanted to use this reaction to fill a balloon with a volume of 28.500 L at sea level and a temperature of 25.5°C, what mass of aluminium would you need? What volume of HCl at STP would you need?

Q: 15. Consider the following reaction. 2 C,H,N,O.(1) → 4 CO (g) + 2 H,0(g) + 2 Ne(g) How many grams of…

A:

Q: Fe(s) + H2SO(aq) → FeS0.(aq) + H2(g) The volume of the balloon was 4.8 x10° L. What mass of Fe was…

A: Equation can be written as: Fe(s)+H2SO4→FeSO4(aq)+H2(g) Molar mass of Fe = 56 g/mol H2 = Molar mass…

Q: 138. You have two rigid gas cylinders. Gas cylinder A has a volume of 48.2 L and contains N2(g) at…

A: Given:Volume of gas (VN2) = 48.2 L.Pressure of gas (PN2) = 8.35 atm.Temperature of gas (TN2) = 25℃ =…

Q: + 6 HCl(aq) 2 AlCl3 (aq) + 3H₂(g) gas produced by this reaction is typically collected via water…

A: According to the question, hydrogen gas is produced by the reaction between metallic aluminum and…

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: b. How many moles of hydrogen are in this sample?

A: An ideal gas equation is derived from the combination of Charle's law, Boyle's law, and Avogadro…

Q: For many purposes we can treat nitrogen  N2  as an ideal gas at temperatures above its boiling…

A: Answer:When number of moles of a gas is constant then equation of state for a gas sample is:Here:

Q: 1) Convert a pressure of 2.18 atm to kPa. Answer in units of kPa. Convert the pressure of 2.18 atm…

A: Since you asked for multiple questions, we are entitled to solve first question only.

Q: For many purposes we can treat methane (CH4) as an ideal gas at temperatures above its boiling point…

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Q: Oxygen gas can be prepared by heating potassium chlorate according to the following equation:…

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

A: Temperature = 45.0 oCVVolume of gas = 116 mL

Q: Part A What volume of O2 at 722 mmHg and 21 °Cis required to synthesize 22.5 mol of NO? Express your…

A: Given that: pressure, P = 722 mmHg = 722760= 0.95 atm temperature, T = 21 oC = 21 + 273 = 294 K…

Q: At STP, 17.50 mol of gas occupies approximately what volume in litres? R = 0.08314 L·bar/mol.K.

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Q: Chlorine gas reacts with fluorine gas to form chlorine trifluoride. Cl2(g) +3 F2(g) → 2 CIF 3(g) If…

A: The balanced chemical equation is as follows:The volume of chlorine gas = The volume of fluorine gas…

Q: 25 g of hydrogen chloride have been treated with 50 g of manganese dioxide, obtaining manganese (II)…

A: Volume of chlorine obtained is: 4.31 LExplanation:

Q: Consider the following reaction:      2 NaHCO3(s)  -->  Na2CO3(s)  +  CO2(g)  +  H2O(l) How many…

A: A numerical problem based on mole concept, which is to be accomplished.

Q: Oxygen is a product of the decomposition of mercury(II) oxide as shown below. 2 HgO(s) → 2 Hg(ℓ) +…

A: The decomposition of mercury(II) oxide provides Oxygen and mercury as the products. 2 HgO(s) → 2…

Q: A 40.0 g sample of potassium metal is allowed to react with excess hydrochloric acid to produce H2…

A: First we would Calculate moles of Hydrogen gas produced and using ideal gas law we would Calculate…

Q: Oxygen is a product of the decomposition of mercury(II) oxide as shown below. 2 HgO(s) → 2 Hg(ℓ) +…

A:

Q: A 1.19 g sample of an unknown halogen occupies 109 mL at 398 K and 1.41 What is the identity of the…

A: Given : Volume = 109 ml  Temperature = 398K  Pressure = 1.41 atm Mass = 1.19 g

Q: Sulfur dioxide (SO₂) gas reacts with oxygen (O₂) in a glass bulb to generate gaseous SO3. In the…

A: Answer:At constant volume, ideal gas equation would be:Here:

Q: If 1.58 g Ar are added to 3.61 atm He in a 2.00 L cylinder at 27.0 °C, what is the total pressure of…

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Q: A student recovered0.398g of THF vapor in a 125 mL flask. Assuming the vapor is an ideal gas with a…

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Q: A helium-filled balloon of the type used in long-distance flying contains 490,000 ft³ (1.4 x 107 L)…

A:

Q: xenon fluoride can be prepared by heating a mixture of Xe and F2 gases to a high temperature in a…

A: Given: Volume of the container: 0.25 L Pressure = 0.12 atm Temperature= 0.0 °C After addition of…

Q: You start with an equimolar mixture of the gases SO₂ and O₂ in a container. The SO₂ and O₂ react to…

A: The reaction for the process is: 2SO2  +  O2  →  2SO3 We have equimolar mixture of SO2 and O2.…

Q: A common way to make hydrogen gas in the laboratory is to place a metal such as zinc in hydrochloric…

A: Given,Volume (V) = 147.6 ml = 0.1476 LP = 743 mm Hg

Q: 2. A gaseous mixture containing 1.5 mol of Ar and 3.5 mol CO2 has a total pressure of 7.5 atm. What…

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Q: Zinc metal reacts with excess hydrochloric acid to produce hydrogen gas according to the following…

A: An ideal gas is a hypothetical gas that has no intermolecular force and has negligible mass.Here we…

Q: The combustion of fuel in your car engine requires oxygen gas, which is supplied as air (21% oxygen…

A: It is given to us that the ethanol is used 100% in the reaction and the volume of oxygen-1.92 L at a…

Q: for this question. Sodium metal reacts with water to produce hydrogen gas according to the following…

A: The reaction is given as, 2 Na(s) + 2 H2O(l) → 2NaOH(aq) + H2(g) From the balanced chemical…

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

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.