Calcium hydride, CaH2, reacts with water to form hydrogen gas. CaH2(s) + 2 H2O(l)  Ca(OH)2(aq) + 2 H2(g) This reaction is sometimes used to inflate life rafts, weather balloons, and the like, where a simple, compact means of generating H2 is desired. How many grams of CaH2 are needed to generate 17.0 L of H2 gas if the pressure of H2 is 740. torr at 20°C? __________g

Q: 8. Calcium hydride, CaH₂, reacts with water to form hydrogen gas CaH₂ (s) + 2H₂O(l) → Ca(OH)₂ (aq) +…

A: Given -> CaH2(s) + 2H2O(l) ---> Ca(OH)2(aq) + 2H2(g)  Volume of H2 = 256 L  Pressure of H2 =…

Q: When heated to 350°C at 0.950 atm, NH4NO3 decomposes to produce, water, nitrogen and oxygen gases.…

A:

Q: Most of the sulfur used in the United States is chemically synthesized from hydrogen sulfide gas…

A: Ideal gas is a theoretical gas made up of many randomly moving point particles that are not subject…

Q: Oxygen gas reacts with powdered aluminum according to the following reaction:…

A: The given balanced chemical equation is 4Al(s)+3O2(g)→2Al2O3(s)The mass of aluminium reacts = 54.1…

Q: Chemical analysis of an unknown compound shows that it contains 64.9%C, 13.5%H, and 21.6% O by mass.…

A: Given  Multipart questions

Q: Most of the sulfur used in the United States is chemically synthesized from hydrogen sulfide gas…

A: Given 703L/s of dioxygen at 242°C and 0.13atm  We have to find mass of SO2 produced in Kg/s

Q: Gas stoves are powered by the combustion of propane (C3H8). The combustion reaction of propane is…

A: Given that -  We need to calculate the total pressure in the sealed 500 mL flask after it has been…

Q: Hexane, C6H14, burns according to the following equation: 2C6H14(g) + 19O2(g) 12CO2(g) + 14H2O(g)…

A: Given: Volume of Hexane = 8.00 L   Chemical reaction is given by, 2C6H14(g) + 19O2(g) → 12CO2(g) +…

Q: What volume of Cl2 will be needed to make 75.0 grams of C2H2Cl4 at 24°C and 773 mm Hg?

A: Number of moles = mass/molar mass  Ideal Gas Law :-  PV = nRT

Q: Ozone (O3) is an air pollutant. It can react with many other chemicals such as ammonia. The chemical…

A:

Q: 2.5 L of octane gas, C8H18, is combusted with 20.5 L of oxygen gas and ignited. What volume of…

A: Volume of octane gas = 2.5 L Volume of oxygen gas = 20.5 L Pressure = 0.995 atm Temperature = 22.0oC…

Q: Most of the sulfur used in the United States is chemically synthesized from hydrogen sulfide gas…

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Q: The combustion of octane, C8H18,C8H18, proceeds according to the reaction shown.…

A: We have to calculate volume of CO2 gas produces at 19°C and 0.995atm. So at first using mole ratio…

Q: Calcium hydride, CaH2, reacts with water to form hydrogen gas. CaH2(s) + 2 H2O(l)  Ca(OH)2(aq) + 2…

A:

Q: 4Al(s)+3O2(g)→2Al2O3(s) What volume of O2 gas, measured at 783mmHg and 18∘C, is required to…

A:

Q: Oxygen gas reacts with powdered aluminum according to the following reaction:…

A: The reaction is given below.

Q: Calcium hydride, CaH2, reacts with water to form hydrogen gas. CaH2(s) + 2 H2O(l)  Ca(OH)2(aq) + 2…

A: Calcium hydride, CaH2, reacts with water to form hydrogen gas. Chemical reaction: CaH2(s) + 2 H2O(l)…

Q: the volume of the sample after the reaction takes place, assuming that the temperature and the…

A: Gay-lusac`s law of gaseous volume: When gases react together to form other gases and when all volume…

Q: Ammonia is produced when nitrogen and hydrogen gases react at high pressures and temperatures: N2…

A: Given :  Volume of hydrogen gas = 6.0 x 107 litre  Pressure = 155 atm  Temperature = 497°C

Q: Quinine, an alkaloid derived from a tree that grows in tropical rain forests, is used in the…

A: “Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: Calcium hydride, CaH2, reacts with water to form hydrogen gas.   CaH2(s) + 2 H2O(l) Ca(OH)2(aq) +…

A:

Q: Most of the sulfur used in the United States is chemically synthesized from hydrogen sulfide gas…

A: Answer:Here:

Q: Consider the following reaction, which is found in some portable stoves: 8CO2 (2) 10H2O (g) + 2C4H10…

A:

Q: Calcium hydride (CaH2) reacts with water to form hydrogen gas: CaH2(s) + 2 H2O(l) → Ca(OH)2(aq) + 2…

A: Given P = 0.995 atm T = 32°C = 273+32 = 305°K V = 48 L standard values molar mass of CaH2 = 42 g/mol…

Q: Dimethyl ether, CH3OCH3, undergoes gas phase decomposition to form methane, hydrogen gas, and carbon…

A:

Q: Acetylene torches are used for welding. These torches use a mixture of acetylene gas, C₂H₂, and…

A: Answer:At constant temperature, relation between pressure, volume and moles of gases is:

Q: Most of the sulfur used in the United States is chemically synthesized from hydrogen sulfide gas…

A:

Q: Part A:  A sample of gas in a balloon has an initial temperature of 33 ∘C and a volume of 1880 L.…

A: A) Given: Initial temperature of gas = 33 oC Initial volume = 1880 L And final temperature = 77 oC

Q: laus process, hydrogen sulfide gas is reacted with dioxygen gas to produce gaseous sulfur dioxide…

A: Given; The consumption of O2 = 422 L/sec. The temperature, (T) = 2550C=(255+273)=528 K. The pressure…

Q: Oxygen gas reacts with powdered aluminum according to the following reaction:…

A:

Q: B. In the following graphs, velocity represents the molecular speed, A Relative number of molecules

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Q: What volume of carbon monoxide is required to produce 62.9 liters of hydrogen gas according to the…

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Q: Most of the sulfur used in the United States is chemically synthesized from hydrogen sulfide gas…

A:

Q: When coal is burned, the sulfur present in coal is converted to sulfur dioxide (SO2), which is…

A: If you have any questions let me know in comment box thankyou for your question.

Q: A student weighed a candle (C25H52(s)), burned it for ten minutes at SATP, and then reweighed it.…

A: The objective of the question is to calculate the volume of CO2 produced when a candle is burned.…

Q: A sample of gas in a balloon has an initial temperature of 5 ∘C and a volume of 1600 L . If the…

A: Given : Initial temperature = 5oC=5 + 273= 278K Final temperature = 59oC= 59 + 273= 302K Initial…

Q: 3. a. Magnesium solid reacts with 6 M hydrochloric acid to form magnesium chloride and hydrogen.…

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Q: Use the van der Waal's Equation to calculate the pressure exerted by 100.0 grams of nitrous oxide…

A: Given,mass of nitrous oxide ( N2O ) = 100.0 gvolume of container = 2.75 Ltemperature = 28.0 oCa =…

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

A: The volume occupied by O2 gas is 7.50 L. The total vapor pressure over water is 754 mmHg.

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.