The volume of HCl gas required to react with excess Ca to produce 11.4 L of hydrogen gas at 1.62 atm and 62.0 °C is ______ L.

Q: 6. What volume of hydrogen gas is formed at 28°C, and 800 mmHg, when 20.0g of calcium reacts with…

A: Thank you.

Q: A very flexible helium-filled balloon is released from the ground into the air at 20. °C. The…

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Q: Automobile airbags are inflated by the rapid decomposition of sodium azide (NaN3). 2 NaN3(s) --> 2…

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Q: solution of 275 mL of 0.725 M hydroiodic acid reacts with excess magnesium in single  displacement…

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Q: A certain mass of nitrogen gas occupies a volume of 1.04 L at a pressure of 8.49 atm. At what…

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Q: The pressure of a sample of argon gas was increased from 1.86 atm to 6.70 atm at constant…

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Q: What volume of ammonia gas (NH3), measured at 600 mm Hg and 55 °C, is requirec to produce 5.00 g of…

A: Given that, Pressure = 600 mmHg , Temperature = 55⁰C = 328.15⁰C Since, 760 mmHg = 1 atm Hence,…

Q: Carbon dioxide gas is collected at 26.0 °C in an evacuated flask with a measured volume of 15.0 L.…

A: Temperature, T = 26.0 °C  Volume, V = 15.0 L  Pressure, P = 0.220 atm

Q: What volume of carbon dioxide gas (in L) at 21*C and 781 mmHg could be absorbed by 327g of lithium…

A: Given data,Temperature=21oC21+273.15=294.15KPressure=781mmHg=781760atm=1.027atmMass of LiOH=327g

Q: Some N₂ gas is mixed with some O2 gas, and the sketch below shows a representative sample of the…

A: Mole fraction:The mole fraction of constituent (solute as well as solvent) is the fraction obtained…

Q: If 4.40 L of CO2 gas at 19 °C at 783 mmHg is used, what is the final volume, in liters, of the gas…

A: According to ideal gas law, PV = nRT where P = pressure V = volume n = moles R = gas constant T =…

Q: 15. What molarity of cleaning solution formed when 10.0 L of ammonia gas at 33°C and 735 torr…

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Q: Suppose 2.80% of 480 g of PCls (208.2 g/mol) initially present in a 7.00 L reaction vessel at 300°C…

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Q: Consider the reaction between aluminum and sulfuric acid to produce aluminum sulfate and hydrogen.…

A: One mole of any gas at STP(standard temperature and pressure i.e 273 K and 1 atm ) take up a volume…

Q: If 250 mL, 0.882 mol/L H2O2 decomposes completely, how many liters of O2 is generated at 25 °C, 1.02…

A: molarity of H2O2 solution = 0.882 mol/L  Volume of H2O2 solution = 250 mL = 0.250 L Temperature (T)…

Q: The volume of a sample of pure HCl gas was 205 mL at 23°C and 171 mmHg. It was completely dissolved…

A: Calculate the number of moles of HCl by using ideal gas equation PV =  nRT where P is the pressure…

Q: What is the pressure (in atm) due to the sulfur dioxide gas only, inside a 1.50 L reaction flask at…

A: Volume of flask = 1.50L Pressure of SO2(g) = ? Temperature = 25oC Mass of sodium sulfite = 3.24g

Q: A 7.45 L container holds a mixture of two gases at 11 °C. The partial pressures of gas A and gas B,…

A: To determine the partial pressure of the third gas by using the ideal gas equation, PV = nRTP =…

Q: A 10 g piece of pure aluminum is placed in 75 mL of 0.54M HCl at stp. They react as 2Al + 6HCL -->…

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Q: P4(g) + Br2(g) --> PBr3(g) What volume of bromine gas at 20 oC and 789 mmHg must be used to…

A: Since molar mass of phosphorus tribromide = 270.7 g/mol Hence moles of phosphorus tribromide to be…

Q: Which of these gases, NH3 or HCl travelled further in the tube? Cotton wet Cotton wet with NH,(aq)…

A: Graham's law of effusion: Graham's law of effusion states that the rate of effusion of a gas is…

Q: What is the mass (in grams) of 6.00 L of propane vapor (C:Hs) at STP?

A: To Solve this problem we will use the relationship that  1 mol of any gas at STP = 22.4 L of that…

Q: What volume in liters (L) of N2 gas will be produced if 115 g of NaN3 completely reacted at STP…

A: The reaction of prouction of N2 from NaN3 is given as:   2 NaN3 → 2 Na + 3 N2 According to the…

Q: 2 C,H.(g) + 7 O;(g) → 4 CO,(g) + 6 H,O(g) Calculate the volume of CO2 produced when 80.0 L of O2…

A: From the balanced reaction,  7 L of  O2 = 4 L of CO2 So, 80 L of O2 = 4.0 × 80/7.0         = 45.7 L…

Q: The mass of Earth’s atmosphere is estimated as 5.14X1015t(1 t= 1000 kg). (a) The average molar…

A: a) Mass of Earth's atmosphere = 5.14×1015 t Conversion into kg: 1 t = 1000 kg5.14×1015 t=5.14×1015…

Q: .9 g of HCl at STP? Assume ideal beha

A: Assuming ideal gas behavior, we can say that 1 mole of an ideal gas occupies 22.4 L at standard…

Q: calculate the mass of CO2 that occupies 78.0mL at STP

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Q: Calculate the volume of CO2 which will be produced from 8.40 L of O2 at STP during the complete…

A: The given chemical reaction is: 2CH3OH(l) + 3O2(g) → 2CO2(g) + 4 H20(g). This is a combustion…

Q: how many liters of carbon dixide measured at STP  would be produced from the decomposition of 325 g…

A: how many liters of carbon dixide measured at STP  would be produced from the decomposition of 325 g…

Q: 37. What volume of H, gas, measured at 27°C and 700. torr, can be obtained by reacting 5.00 g of…

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Q: 35. Calculate the mass of nitrogen dioxide gas occupying a vol- ume of 2.50 L at 35 °C and 0.974 atm…

A: Given that: Volume of NO2 = 2.50 L T = 35°C = 35°C+273 = 308 K P = 0.974 atm

Q: How many liters of H2 gas, measured at 745 mmHg and 89 ∘C, are required to synthesize 0.63 mol of…

A: The combined relation between gas laws is known as the ideal gas law or the gas equation. The…

Q: What volume of carbon dioxide measured at STP will be formed by the reaction of 2.30mol of oxygen…

A: First note the combustion reaction of ethyl alcohol with oxygen.  CH3CH2OH + 3O2→2CO2 + 3H2O…

Q: The pressure of a sample of argon gas was increased from 1.76 atm to 6.60 atm at constant…

A: At constant temperature volume of gas is inversely proportional to pressure

Q: What volume at STP is occupied by 0.682 g of BCl3(g)

A: Molar mass of BCl3 , Mwt = 117.17 g/mol Given weight, W = 0.682 g Moles = W ÷ Mwt = 0.682 ÷ 117.17 =…

Q: How many grams of sodium hydrogen carbonate decompose to give 28.7 mLmL of carbon dioxide gas at…

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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.