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: Consider the following reaction:                           4 Al(s) + 3 O2(g)  → 2 Al2O3(s)…

A: Given, 2.00 L of pure oxygen at STP (0°C, 1 atm) to react completely with a certain sample of…

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

A: Given,Moles of ethane, C8H18 = 402 molPressure, P = 0.995 atmTemperature, T = 37.0 ∘C = 273 + 37 =…

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: Chlorine gas (Cl2) can be prepared on a small scale according to the following balanced equation:…

A: The balanced equation for the formation of Cl2(g) is: MnO2(s) + 4HCl(aq) → MnCl2(aq) + 2H2O(l) +…

Q: Calcium hydride, CaH2, reacts with water to form hydrogen gas. CaH2(s) + 2 H2O(1) ---> Ca(OH)2(aq) +…

A: Given-> Volume of H2 = 17.0 L Pressure of H2 = 720 torr = 720/760  atm = 0.9474 atm (1 atm = 760…

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

A: Please find your solution below : To solve this, we need to know about ideal gas equation which is…

Q: CH3OH can be synthesized by the reaction : CO (g) + 2H2 (g) -----> CH3OH (g) How many liters of…

A: The objective of this question is to determine the volume of H2 gas required to synthesize 0.71 mol…

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

A:

Q: Solid ammonium chloride, NH4Cl,NH4Cl, is formed by the reaction of gaseous ammonia, NH3,NH3, and…

A:

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

A:

Q: Some chlorofluorocarbons, CFCS, are formed from carbon tetrachloride, CCI., which can be made from…

A: The reaction considered is,

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: etimes used to infla grams of CaH2 are

A:

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

A:

Q: Nitrogen gas has many important applications in industry, especially in providing unreactive…

A: First, we will calculate number of moles of N2  produced , then using stoichiometric calculations,…

Q: grams of CaH2 are

A:

Q: Ammonium nitrate, NH4NO3, can decompose explosively when heated to a high temperature according to…

A: Interpretation- To determine the how many liters of gaseous products would be formed. When NH4NO3,…

Q: Nitrogen monoxide is a pollutant commonly found in smokestack emissions. One way to remove it is to…

A: 4NH3(g) + 6NO(g) → 5N2(g) + 6H2O(ℓ) As, we can see 4 moles of NH3(g) is required to convert 6 moles…

Q: CH3OH can be synthesized by the following reaction.CO(g)+2H2(g)→CH3OH(g) What volume of H2 gas (in…

A: According to the question, methanol is prepared by the given reaction.From this reaction, 2 moles of…

Q: The reaction between hydrogen sulfide and oxygen produces sulfur dioxide and steam. Assuming the…

A: Given reaction,       2H2S (g) + 3O2 (g) → 2SO2 (g) + 2H2O (g)

Q: Urea ((NH2)2CO(s)) was the first organic compound to be synthesized in a laboratory. Today it is…

A: The objective of the question is to find out the volume of CO2(g) required to react with 10 L of…

Q: Consider the reaction of a mixture of NaHCO3 and Ca(HCO3)2 with excess HCl. The net ionic reaction…

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Q: Calculate the percent yield for this reaction.

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Q: A mixture is prepared from 15.0 L of ammonia and 15.0 L chlorine measured at the same conditions,…

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Q: a 2.802g sample of an unknown pure metal (M) is added to a 0.2 L solution of 2 mol/L H2SO4(aq). The…

A: Given , mass of metal sample = 2.802 g Volume of H2SO4 = 0.2 L Concentration of H2SO4 = 0.2 molL…

Q: c) This relationship is known as Graham's Law of Effusion. Since both gases are at te same…

A: Given, molar mass of heavier gas =mH molar mass of lighter gas = mL Velocity of heavier gas = VL…

Q: A self-contained underwater breathing apparatus uses canisters containing potassium superoxide. The…

A: The given reaction is as follows: 4KO2(s) + 2CO2(g) → 2K2CO3(s) + 3CO2(g) The volume of CO2 = 12.4 L…

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

A:

Q: The explosive, PETN, pentaerythritol tetranitrate, is one of the most powerful explosives known. It…

A: Given reaction is :  C(CH2ONO2)4 (s) --------> 2CO (g) + 4H2O (g) + 3CO2 (g) + 2N2 (g)  Given…

Q: Some chlorofluorocarbons, CFCS, are formed from carbon tetrachloride, CCl., which can be made from…

A: Given, The balanced chemical equation is given below, CH4(g) + 4Cl2(g) → CCl4(l) + 4HCl(g) The…

Q: SF6

A: We will use stoichiometry of the reaction to get the answer

Q: Calcium hydride, CaH2, reacts with water to form hydrogen gas: CaH2(s)+2H2O(l)→Ca(OH)2(aq)+2H2(g)…

A: The given chemical balanced equation as follows:

Q: Acetylene, used in welding torches, can be produced by the reaction CaC2(s) + 2 H2O(l) →  C2H2(g) +…

A: The objective of the question is to calculate the percent error in the experiment of producing…

Q: This relationship is known as Graham’s Law of Effusion. Since both gases are at the same…

A: Given Data: mLmH=vHvL2 vHvL=12 Molar Mass of light gas (Neon) = 20 g/mol

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.