Aluminum reacts with excess hydrochloric acid to form aqueous aluminum chloride and 35.8 mL of hydrogen gas at 27°C and 751 mm Hg. How many grams of aluminum reacted?

Q: Suppose the gas mixture produced by the decomposition reaction is trapped in a container at 17.0°C;…

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Q: Suppose the gas mixture produced by the decomposition reaction is trapped in a container at 17.0°C;…

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Q: In the reaction 2KClO3(s)—> 2KCl(s)+3O2(g) how many liters of oxygen gas at STP are produced from…

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Q: The chlorination of methane occurs in a number of steps that results in the formation of…

A: Answer: In this question we will use ideal gas equation to calculate partial pressure of gas which…

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

A: Given,  Temperature, T = 50 °C = (50+273) = 323 K Volume, V = 36.2 ml = 0.0362 L Pressure, P = 1 atm…

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

A: Ideal gas equation,  PV = nRT

Q: 27. Sodium metal reacts explosively with water to produce sodium hydroxide and hydrogen gas. When…

A: The balanced Chemical equation given in the question is -   2Na + 2H2O -----> 2NaOH + H2…

Q: What Celsius temperature, T2,

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Q: What is the molar mass of a gas if .427 g of the gas occupies a volume of 125 mL at 20.0C and 980…

A: Given data mass of gas : m = 427 g Volume of gas : V = 125 mL = 0.125 L Pressure of gas : P = 980…

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

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Q: A miniature volcano is made in the laboratory with ammonium dichromate. When ignited, it decomposes…

A: Given:…

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

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Q: A 0.158-g sample of unknown metal, X, reacted with hydrochloric acid according to the following…

A: Given,Mass of unknown metal = 0.158-gVolume of gas collected = 216 mL = 0.216 LTemperature = 22…

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

A: Answer: Mass of CO collected = 0.14g

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

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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: produce 25.0L of O2(g) at 1.55atm and 28.5oC?  2KClO3(s) 2KCl(s) + 3O2

A: The question is based on the concept of Reaction Stoichiometry.   We have to  calculate the mass of…

Q: che mass of CC

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

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

A: T = 30oC=30+273=303 KV = 78.7 mLP(H2O) at 30oC = 31.8 mmHgP(atm) = 1 atm or 760 mmHgR = 0.08206…

Q: What is the density of carbon dioxide gas (g/L) at -25.2°C and 91 kPa?

A: T = -25.2 oC = 247.95 K P = 91 kPa = 0.8981 atm

Q: What is the molar mass of a gas if 150.0 mL has a mass of 0.922 g at 99 ºC and 107.0 kPa?

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

Q: What is the density in g/L of gas at STP if the same sample of gas in a 1.000 L bulb weighs 0.672 g…

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Q: The action of some commercial drain cleaners is based on the following reaction: 2 NaOH(s) + 2…

A: The balanced Chemical  equation given in the question is - 2 NaOH(s) + 2 Al(s) + 6 H2O(l) → 2…

Q: A sealed flask contains 3.1 L of a gas at 2.4 atm and 22.7 °C. If the density of the gas is 9.7 g/L,…

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

A: Given in the question, Volume = 51.5 mL = 0.0515 L Temperature = 35.0 ℃ = 273 + 35 K = 308 K As in…

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

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

A: T = 35oC = 308.15K  V = 80ml = 0.08L  We will consider the pressure to be 1atm  Molar mass of oxygen…

Q: For the given reaction, what volume of Br2 would be required to react with 6.4Lof NO, measured at…

A: The given reaction is

Q: 8.50L of methane (CH4) are collected at 21.0℃ and 117.1kPa. How many moles of methane gas is this?

A: Given, Volume = 8.50 L Temperature = 21.0°C  K = 273 + °C  Pressure = 117.1 KPa  101.3 kpa = 1 atm

Q: If 25.0 g O2 at STP is heated to 100.0°C, what is its new volume?

A: At STP Temperature(T1)=273.15K Pressure(P1)=1atm Weight=25gm T2=100°C V2=?

Q: Using the procedure in Experiment 8, acetonitrile (molar mass = 41.05 g/mol) is collected at a…

A: Answer:- This question is answered by using the simple concept of calculation of volume of a gas…

Q: A 20.0 L gas cylinder is filled with 5.80 moles of gas. The tank is stored at 17 ∘C . What is the…

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Q: Aluminum reacts with oxygen to form aluminum oxide. Al(s) + 02(g) + Al203(s) A 44.751 gram sample of…

A: Given, Al(s) + O2(g) ➝ Al2O3 Balancing the above equation, we get 4Al(s) + 3O2(g) ➝ 2Al2O3 Mass of…

Q: Calculate the volume, in liters, occupied by 2.35 mol of helium gas at STP. If…

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

A: The number of moles of solid Al reacted =

Q: If 5.00 g of Gas A and 5.00 g of Gas B are mixed in the same chamber and the partial pressure of Gas…

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Q: If water is added to magnesium nitride, ammonia gas is produced when the mixture is heated. Mg3N2(s)…

A: Given: Mg3N2(s)+3H2O(l)→3MgO(s)+2NH3(g) Mass of H2O=5.25 g To find: Volume of ammonia gas at STP…

Q: Consider the reaction of 85.5 L of NH3 gas at STP and 105 L of oxygen gas at STP. 4NH3(g) + 5O2(g)…

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Q: A 0.158-g sample of unknown metal, X, reacted with hydrochloric acid according to the following…

A: Number of moles of hydrogen can be calculated using ideal gas equation:

Q: What is the molar mass of an ideal gas which has a density of 1.2 g/L measured at 25°C and 0.80 atm?

A: The ideal gas equation is represented by the equation (1) in which P is the pressure of gas, V is…

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

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Q: A mixture containing 1.58 g CO (g) and some CO2 (g) occupies a 7.24-L vessel at 42°C. The pressure…

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Q: The chlorination of methane occurs in a number of steps that results in the formation of…

A: Given Reaction : 2CH4(g)+3Cl2g)⟶2CH3Cl(g)+2HCl(g)+2Cl-(g)

Q: Consider the following balanced reaction: 2 Z(g) + 4 A(g) → 3 Y(g) + 2 B(g) Occurs at STP   a.…

A: The reaction given in the question is -…

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.