Calcium hydride, CaH2, reacts with water to form hydrogengas:CaH21s2 + 2 H2O1l2¡Ca1OH221aq2 + 2 H21g2This reaction is sometimes used to inflate life rafts, weatherballoons, and the like, when a simple, compact means ofgenerating H2 is desired. How many grams of CaH2 areneeded to generate 145 L of H2 gas if the pressure of H2 is825 torr at 21 °C?

Q: Air bags are activated when a severe impact causes a steel ball to compress a spring and…

A: Given: STP= 62.0 L

Q: [References] Use the References to access important values if needed for this question. How many…

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Q: ided Practice ections: Complete all problems. Ensure your work is shown, and proper units are plied.…

A: Mass of copper (I) sulfide = 24.1 gPressure=10.7 atmT(in °C) = 237°CT (in K)=273.15 + T(in °C)=…

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

A: Step 1: Data given  Hydrogen gas Temperature = 55oC + 273.15 = 328.15 KVolume of gas = 108 mL =…

Q: Acetylene (C2H2) burns in oxygen to form carbon dioxide and water. How many liters of oxygen at 45oC…

A: The balanced chemical equation for the combustion of acetylene can be written as follows: C2H2 (g)…

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

A: Given:Mass of CH3OH = 26.2 g.Temperature = 90 oC = 273 + 90 = 3363 KPressure = 752 mmHg = 0.9895…

Q: The combustion of octane, C,H18, proceeds according to the reaction shown. 2 C3H18(1) + 25 0,(g) –…

A: The balance chemical reaction :  2C8H18(L) + 25O2(g) ----> 16CO2(g) + 18H2O(L)  Number of moles…

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

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Q: Consider the reaction C3H60+402 (8)--> 3CO2(g) + 3H₂O(1) If 12.78 g of C3H6O is burned, what volume…

A: Given -> Weight of C3H6O = 12.78 gm  Pressure= 7.06 atm  Temperature= 30°C = 30 + 273 = 303 K

Q: impure sample of NaClO3 having a mass of 25.0 grams was heated until all the NaClO3 had decomposed.…

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Q: Which reaction is predicted to be faster (A or B)? Reactions A and B are of the same type. Classify…

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

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Q: When aluminum is placed in concentrated hydrochloric acid, hydrogen gas is produced. 2 Al(s) + 6…

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

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Q: Use the References to access important What volume of ethylene (C2H4) is required to react…

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Q: Iron III oxide reacts with H2 gas to yield Fe and water. What volume of H2 gas at 754.3 mmHg and 723…

A: A multiple choice question based on balancing the equation, which is to be accomplished.

Q: etimes used to infla grams of CaH2 are

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Q: Methanol (CH3OH) is an important industrial compound that is produced from the reaction CO (g)+2H2…

A: At STP volume of 1 mole of gas is 22.4 L.

Q: What volume in liters of H₂ gas would be produced by the complete reaction of 2.93g of Al solid at…

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Q: Consider the reaction:  MnO2 (s) + 2Cl-(Aq) + 4H+ (Aq)===> Mn2+ (Aq) + Cl2(g) + 2H2O(g)  a) how…

A: The combined gas legislation incorporates various gas laws such as the Boyle’s law, Charles' law,…

Q: 294.66g of Ca(CN)2 have what volume as a gas @ STP?

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Q: Consider the reaction: 2 H2S (g) + 3O2 (g)..........> 2 H2O (g) + 2 SO2 (g) a.) Calculate the…

A: Mole is the amount of the substance that contains the same number of particles or atoms or…

Q: The combustion of octane, C8H18, proceeds according to the reaction shown.   2 C8H18(l)+25…

A: The balanced Chemical equation for Combustion of Octane given in the question is - 2C8H18(l)+…

Q: Water can be broken down via electrolysis according to the reaction, 2 H2O (l) --> 2 H2 (g) + O2…

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Q: lómetry Amount of reactant (grams or volume) Moles of Amount of Moles of product (grams or volume)…

A: Given question is already solved in image. I explained the process to you. First convert mass of…

Q: When acetylene gas, C₂H₂, burns, how many liters of O₂ at STP are used for every 7.78 mol of…

A: Given, Moles of the Acetylene = 7.78 mol STP means Standard Temperature and Pressure. Th formulae…

Q: grams of CaH2 are

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Q: When C2H6 is combusted, carbon dioxide and water gases are produced according to the following…

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Q: This reaction generates 7.70 L of oxygen at a temperature of 18.7°C and a pressure of 0.92 atm, what…

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Q: Given the reaction: 2C₈H₁₈ (l) + 25 O₂ (g) → 16 CO₂ (g) + 18 H₂O (l) What mass (in grams) of C₈H₁₈…

A: Given data :  2C₈H₁₈ (l) + 25 O₂ (g) → 16 CO₂ (g) + 18 H₂O (l) volume of carbon dioxide = 432 L  At…

Q: 4) What volume of hydrogen gas is evolved from a reaction between 0.69 g of Na and water? The gas is…

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Q: Gaseous iodine pentafluoride, IF₅, can be prepared by the reaction of solid iodine and gaseous…

A: Percentage of IF5 = 20.06 %

Q: calculate the volume of SO, gas (in mL)

A: Ideal Gas Law :-  PV = nRT  P is the pressure of gas  V is the volume occupied by gas n is the…

Q: Consider the following equation: C6H8O7(s)  + 3 NaHCO3(s) + H2O(l) --> Na3C6H8O7(s) + 3H2O(l) +…

A: Given mass of C6H8O7 = 193.6 molar mass of C6H8O7 = 192.1 g/mol Temperature = 313°K volume = 108.4 L

Q: As of 2018, ~95% of hydrogen is produced from fossil fuels. One of the most important reactions of…

A: Reaction takes place in steam reforming of methane:- CH4 + H2O ----> CO + 3H2 Temperature of…

Q: Ethene is converted to ethane by the reaction CHalg) + Hz(0) CaHalo) CHa flows into a catalytic…

A: Given: Pressure of C2H4 = 25.0 atm. Temperature of C2H4 = 300 oC Flow rate of C2H4 = 856.8 L/min.…

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

A: Given, moles of octane = 297 moles  Volume = ?  Temperature = 22°C  Pressure = 0.995 atm

Q: Consider the reaction of NO2  If 23.8L of O2(g), measured at 35oC and 632mmHg is allowed to react…

A: Using Ideal gas law we can determine how many moles of O2 present in the reaction. Using…

Q: A mixture of 25.0 g of NO and an excess of O2 reacts according to the balanced equation   _2_NO(g)…

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Q: Methanol (CH3OH) is an important industrial compound that is produced from the reaction CO (g) + 2H2…

A: The volume occupied by one mole of any substance at STP is 22.4 L

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

A: An ideal gas follows a theoretical concept in which there is no interparticle interaction between…

Q: Use significant figures in your answers. 1 NO(g) + 1 H₂(g)--> 1 N2(g) + 1 H₂O(g) 22.15 grams of NO…

A: The mass of NO is 22.15 g.The mass of H2 is 2.78 g.The temperature is .The pressure is .The…

Q: Fat is a complicated mixture but has the approximate formula of C56H10806- Consider the following…

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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.