One way to make chlorine is to let manganese dioxide, MnO2, react with hydrochloric acid according to the following equation. 4HCI + MnO2→ Cl2 + MNCI2 + 2H2O What is the minimum volume (in mL) of 6.35 M HCl needed to prepare 489.2 mL of dry chlorine when the gas is obtained at 22.7 °C and 752 torr? i mL

Q: ne air bags in automobilles were once Inflated by hitrogen gas generated by the rapid decomposition…

A: Equation is  2NaN3(s) —> 2Na(s) + 3 N2(g)  we have to find the no. of moles of N2 by formula PV =…

Q: 3. Dr. Dahm is trying to generate CO2(g) by reacting an acid with calcium carbonate. If he pours 389…

A: Given :  Volume of H2SO4 = 389 ml  Concentration of H2SO4 = 1.6 M  Mass of CaCO3 = 69.5 gm…

Q: When zinc metal is added to hydrochloric acid, the following reaction takes place Zn(s) + 2 HCl(aq)…

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Q: Suppose that Daniel has a 3.00 L bottle that contains a mixture of O2 , N2 , and CO2 under a total…

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Q: A student performs an experiment like the one you saw in Experiment 8.  The student determines the…

A: Given,  Pressure of oxygen is 0.7811 atm Volume of oxygen is 217 ml = 0.217 L Temperature = 298.15 K…

Q: What volume of carbon dioxide (in L) will 2.82 g of antacid made of calcium carbonate produce at…

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Q: Why

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Q: What is the pressure of the H,

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Q: At 7°C a 1.0-L flask contains 5.0 × 10-2 mole of N2, 2.0 x 102 mg 02, and 2.4 x 1021 molecules of…

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Q: What volume of carbon dioxide (in L) will 3.46 g of antacid made of calcium carbonate produce at…

A: Ideal gas law PV = nRTWHEREP = pressureV = volumen = molesR = gas constantT = temperature

Q: lorine is widely used to purify municipal water oplies and to treat swimming pool water. ppose that…

A: Given that: V1 = 8.60L P1 = 890 torr T1 = 25°C = 25°C+273 = 298K V2 = 6.90L T2 = 56°C = 56°C+273 =…

Q: A study of the effects of certain gases on plant growth requires a synthetic atmosphere composed of…

A: (a)Mole fraction = (mole %) / 100 Partial pressure = mole fraction × total pressure Mole fraction of…

Q: A mixture contains 0.08 mol He, 0.12 mol CO2, 0.15 mol O2, and 0.11 mol Ar. Which gas has the…

A: According to the Dalton's law of partial pressure, the total pressure exerted by a mixture of gases…

Q: A.) An aqueous solution of potassium acetate, KCH3COO, contains 3.47 grams of potassium acetate and…

A: The answers to the following Questions are given as:

Q: What volume of H2 gas, measured at 65˚C and 810. torr, can be obtained by reacting 7.00 g magnesium…

A: The collected parameters of the product, H2(g) are: Temperature, T = 65 oC + 273.15 = 338.15 K…

Q: Assume a gas mixture consists of 0.215kg of Xe, 258g of H2, 51.8g of Cl2, and 283g of C6H6. If the…

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Q: How many liters of HCl gas, measured at 30.0 °C and 745 torr, are required to prepare 1.25 L of a…

A: Molarity (M)= moles of solute (mol)Volume of solution (L)⇒ moles of solute =…

Q: A compound has the empirical formula of SF4. At 20. °C, 0.100 g of the gaseous compound occupies a…

A: According to ideal gas law, PV = nRT where P = pressure in atm = 1.02 atm  V = volume in L = 0.0221…

Q: Suppose that Daniel has a 2.00 L bottle that contains a mixture of O2, N2, and CO2 under a total…

A: The objective of this question is to find the partial pressure of O2 in a mixture of gases. The…

Q: Suppose that a 26.7-mL volume of HCl solution reactions completely with 55.0 mL of aqueous Na2CO3.…

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Q: At 22°C and 0.998 atm, what is the theoretical volume (in mL) of hydrogen gas produced when 0.45g of…

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Q: Elemental analysis is performed on an organic liquid with a fishy odor. Vaporization of 255.0 mg of…

A: Here we can apply the gas equation to find the moles of organic compound used. Moles n = PV / RT…

Q: What is the partial pressure of oxygen in a tank?

A: Partial pressure of O= mole fraction of O x total pressure  Composition of O in the Trimex = 10%…

Q: Oxygen gas can be prepared by heating potassium chlorate according to the following equation:…

A: The reaction which is given as follows - >2KClO3 (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: A gaseous compound was found to contain 30.4% N and 69.6 % O by mass. At 300 K, 1.10 g of the…

A: Given,mass percent of N = 30.4 % and O = 69.6 %mass of gaseous compound = 1.10 gVolume = 0.376…

Q: A student wants to calculate the molarmass for compound X by using the universal gas constant…

A: We can determine the molar mass using the following formulab for ideal gas equation PV=nRT  =>…

Q: for this question. Sodium metal reacts with water to produce hydrogen gas according to the following…

A: The reaction is given as, 2 Na(s) + 2 H2O(l) → 2NaOH(aq) + H2(g) From the balanced chemical…

Q: A sample of nitrogen gas has a volume of 167.0 mL at STP. What volume (in mL) does the gas occupy if…

A: 1) Given that: Volume of nitrogen (V1) = 167.0 mL = 0.167 L at STP that is Temperature (T1) = 273 K…

Q: new volume

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Q: In a mixture of two gases, the partial pressure of methane is 0.175atm and the partial pressure of…

A: Given, Partial pressure of methane = 0.175 atmPartial pressure of oxygen = 0.250 atmVolume, V = 10.5…

Q: What volume of carbon dioxide (in L) will 2.44 g of antacid made of calcium carbonate produce at…

A: Gi ven, Temperature = 37 C = 310 K

Q: A 801.1 mL aqueous solution of 628.5 mM Na2S is combined with 100.0 mL of an aqueous HCl solution…

A: V = 4.126L  P = 1atm  T = 35.93oC = 309.08K  801.1 mL aqueous solution of 628.5 mM Na2S is reacted…

Q: Acetylene gas can be produced by slowly reacting calcium carbide with water. CaC2(s) + 2H2O(l) ➡…

A: The number of moles of calcium carbide that involve in the reaction is determined on substitution…

Q: A compound has the empirical formula SF4. At 20.°C, 0.100 g of the gaseous compound occupies a…

A: Given : Empirical formula = SF4  Temperature = 20 oC Mass of compound = 0.100 g Pressure of compound…

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.