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 20.0 L of H2 gas if the pressure of H2 is 740. torr at 15°C?

Q: You’re burning propane, C3H8,in the lab and it burns in oxygen to form carbon dioxide and water.…

A: In the complete combustion of Propane (C3H8), Volume of Propane (C3H8) = 3 L Temperature, T= 18°C…

Q: Copper reacts with nitric acid according to the following equation. Cu(s)  +  4 HNO3(aq)  →…

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Q: The complete combustion of methane, CH4, can be represented by the equation: CH4 (g) + 2 O2 (g) --->…

A: At STP molar volume of an ideal gas is 22.4 L.

Q: If 25.8 L of H2 is collected at 1.34 atm and 38°C, what was the mass of magnesium reacted? Mg(s) +…

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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: The reaction of 50.0 mL of N2 gas with 150 mL of H2 will produce what volume of ammonia if the…

A: By Gay-Lussac's law of combining volumes states that the volume of gases which take part in a…

Q: Consider the reaction for the production of NO2 from NO:2 NO( g) + O2( g) → 2 NO2( g)(a) If 84.8 L…

A: a) Given : The volume of oxygen is 84.8 L. The pressure is 632 mmHg. The temperature is 35∘C  that…

Q: In the chemical reaction used in automotive air-bag safety systems, N2(g) is produced by the…

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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: A sample of butane (C4H10) gas having a volume of 2.0 L at 25 °C and 1300 mm Hg was mixed with a…

A: PFA

Q: Some chlorofluorocarbons, CFCs, are formed from carbon tetrachloride, CCl4, which can be made from…

A: The reaction considered is,

Q: .2 NH3 ---> N2  +  3 H2 74.9 L of liquid ammonia (NH3) has a density of 0.73 kg / m3 , is…

A: In ideal gas there is no force of attraction, collision are elastic and pressure will generate by…

Q: If 96.0 mL of nitrogen gas reacts with 38.0 mL of oxygen gas, what is the volume of NO2 produced?…

A: Nitrogen gas reacts with oxygen gas to produce NO2 gas. The balanced reaction is: N2 (g) + 2O2 (g)…

Q: If water is added to magnesium nitride, ammonia gas is produced when the mixture is heated.…

A: The given equation is as follows. Mg3N2(s)+3H2O(l)→ 3MgO(s) + 2NH3(g) That means 2 mol ammonia gas…

Q: Ammonia, NH3, may react with oxygen to form nitrogen gas and water. 4NH3(aq)+3O2(g)⟶2N2(g)+6H2O(l)…

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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: Ammonium nitrate is an explosive compound and it decomposes at a high temperature according to the…

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

Q: Magnesium reacts vigorously with mineral acids to produce a salt and hydrogen gas in an exothermic…

A: Given: Magnesium i.e. Mg is reacting with sulfuric acid i.e. H2SO4. Mass of Mg reacting = 0.361 g.…

Q: Ethanethiol, C₂H5SH, is an odourous compound added to natural gas so that leaks can be detected. It…

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Q: 3. A plastic tank containing a gas of 7.8 L and 5.35 atm at 7 °C weighs 96 g. If the empty tank…

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Q: 1. KO2 -readily reacts with moisture to produce oxygen gas, potassium hydroxide, and hydrogen…

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Q: What volume of methane (CH) is required to react with 129 liters of carbon tetrachloride according…

A: The reaction taking place is given as, => methane (CH4 (g)) + carbon tetrachloride (CCl4 (g))…

Q: Iron(III) chloride is used to treat drinking and waste water. It can be made by reacting iron with…

A: Ideal gas equation is used to relate the volume of ideal gas, pressure, temperature and number of…

Q: Consider the following equation, which represents the combustion of hydrogen sulfide.…

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Q: Ammonia gas and oxygen gas react to form nitrogen gas and water.   4NH3(g) + 3O2(g) -> 2N2(g) +…

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Q: * 00 Radon (Rn) is the heaviest and the only radioactive member of Group 8A(18), the noble gases. It…

A: Given data  No of atoms of radon=10^15 atoms   Average atoms=1.373×10^4 Given mass=3.96g Molar…

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: What volume of hydrogen gas is produced when 6.97 g of iron reacts completely according to the…

A: Given  Reaction  Iron(s)  +  Hydrochloric acid(aq)  →  Iron ( II ) chloride(aq)  + Hydrogen(g) Mass…

Q: Consider the following balanced chemical reaction: 4C3H6(g) + 6NO(g) -->4C3H3N(s) + 6H2O(l) + N2(g)…

A: Molar mass of C3H6 = 42g/mole.Moles of C3H6 in 612g = 612g/(42g/mole) = 14.57 moles 6.023x10²³…

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

A: Here we are required to find the mass of ammonium chloride produced from the synthesis reaction

Q: Chlorine can be prepared in the laboratory by the reaction of manganese dioxide with hydrochloric…

A: The balanced reaction taking place is given as, => MnO2 (s) + 4 HCl (aq) ⟶ MnCl2 (aq) + 2 H2O (l)…

Q: N2(g) + 3H2(g) → 2NH3(g) 8.99 L of N2(g) is mixed with 7.64 L of H2(g) and reacts with 100% yield.…

A: Based on limiting reagent we should calculate the  percentage of yield  22.4 L occupied 1 mole of…

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

A:

Q: Acetylene (C2H2) burns in oxygen (O2) to produce carbon dioxide (CO2) and water  (H2O). 8.64 L of…

A: Here we are required to find the volume of oxygen required  and volume of carbon dioxide for…

Q: micro-syringe has a maximum volume of 50 mL. A chemical reaction known to generate methane gas is…

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Q: Propane burns in air according to the equation: C3H8(g) + 5O2(g) -> 3CO2(g) + 4H2O(g). What volume…

A: The number of moles of propane is calculated as shown below where V is the volume of propane and Vm…

Q: Two hundred liters (200 L) of Ammonia at STP is produced by the combination of     Nitrogen and…

A: The given balanced reaction for the production of ammonia by the combination of nitrogen and…

Q: The air bags in cars inflate through the explosive decomposition of a solid to produce a gas. The…

A: The decomposition reaction of sodium azide (NaN3) is given as 2 NaN3 (s) → 2 Na (s) + 3 N2 (g)…

Q: If water is added to magnesium nitrate, ammonia gas is produced when the moisture is heated.…

A: Molar mass of magnesium nitride = 100.95 g/mol. Molar mass of ammonia = 17.03 g/mol. Mass of ammonia…

Q: What volume of methane (CH4) is required to react with 162 liters of carbon tetrachloride according…

A: The balanced chemical equation for the reaction of methane (CH4) and carbon tetrachloride (CCl4) is…

Q: The following equation represents the oxidation of ammonia, NH3. 4NH3(g) + 5O2(g)  →  4NO(g) +…

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Q: 4. A chemist mixes 25.0 ml of fluorine gas with 15.5 mL of chlorine gas at 35.5 °C and 726 mmHg to…

A: Given :-  F2(g) + 3Cl2(g) → 2ClF3(g)  Pressure = 726 mm Hg  Temperature = 35.5°C  Volume of F2 =…

Q: Acetylene (C2H2) burns in oxygen (O2) to produce carbon dioxide (CO2) and water (H2O). 8.64 L of…

A: STP condition: T = 0°C P = 1atm  Given that: Volume of acetylene = 8.64L

Q: A crude oil burned in electrical generating plants contains about 1.2% sulfur by mass. When the oil…

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Q: For some reason, a skier decides to ski from the summit of a mountain near Park City, UT (elevation…

A: Given initial temperature is -17° C and initial pressure is 623 mmHg. Given final temperature is…

Q: Butane, C4H10, is an easily liquefied gaseous fuel. Calculate the density of butane gas at 0.957 atm…

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Q: Sodium bicarbonate (NaHCO3) is called baking soda because when heated, it releases carbon dioxide…

A: The reaction taking place is  2 NaHCO3 ------> Na2CO3 + H2O + CO2  Hence from the above reaction…

Q: 1. A 3.25 gram sample of solid calcium carbide (CaC2) reacts with water to produce acetylene gas…

A: Since you have asked Question number 1, we will solve the same for you.  CaC2 + 2H2O → C2H2 +…

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.