Consider the following reaction: 2CuCl2 (9) → 2CUCI Cl2 (3) (s) An initial mass of CuCl, (mol. wt. 134.4 g/mol) is reacted to produce Cl, gas. The final volume of gas collected after the reaction is 2.46 L. The temperature is 300K and the pressure 1 atm. How many grams of CuCl2 were reacted? O 14.2 g O 7.09 g 26.9 g O 6.72 g O 13.4 g

Q: Brass is an alloy of Cu and Zn. Zinc dissolves in HCl liberating H 2(g), according to the equation…

A: Given,  Volume = 8.650 L  Temperature = 24.52 °C = (24.52+273) K                         = 297.52 K…

Q: Consider the following equation: CH&O7(s) +3 NaHCO3(s) + H20(1) --> Na3CgHgO7(s) + 3H2O(1) + 3CO2g)…

A: Here we first calculate the production of CO2 as a mole. Then use gas equation to determine the…

Q: What is the total pressure in the container, in atm?

A: Ideal gas law ;-  PV = nRT  P = pressure  V = volume  n = number of moles  R = gas constant  T =…

Q: Suppose a sample of refrigerant gas consisting of a simple mixture of the gases pentafluoroethane…

A: Given : Density = 2.30 g/L  Pressure = 0.337 atm

Q: A flask weighs 50.1305g when clean, dry, evacuated, 150.2410g when filled with water (density =…

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Q: A 3.35 g sample of an unknown gas at 23 C and 1.10 atm is stored in a 3.05 L flask. What is the…

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Q: A combustion reaction involving 628.0 g n-butanol (C,H100) occurs at 345.0 °C and 15.2 atm. What…

A: Given :-  Amount of butanol = 628.0 g  Temperature = 345.0 °C  Pressure = 15.2 atm  To calculate :-…

Q: Consider the reaction: 2 Ag2O(s) ---------> 4 Ag(s) + O2(g) If this reaction produces 15.8 g of…

A: Mass of Ag = 15.8 g Molar mass of Ag = 107.9 g/mol Moles = massMolar mass=15.8 g107.9 g/mol=0.146…

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: A 1.92 L flask is filled with 2.52 g of some gas (molar mass 42.100g/mol) at 23.1°C. A different…

A: Given: Volume , V = 1.92 L Temperature = 23.1°C = 296.25K No. Of moles gas= 2.52g/42.1gmol-1= 0.0598…

Q: Gaseous ammonia and hydrogen chloride react to form solid ammonium chloride, NH3 (g) + HCI (g) →…

A: Calculate the excess moles of reactant,         Moles of NH3 = 3.00 g17.031 g/mol = 0.1761 molMoles…

Q: A 5.73-L flask at 25 °C contains 0.0388 mol of N2, 0.147 mol of CO, and 0.0803 mol of H2. What is…

A: The ideal equation for gas is given by,                                               PV = nRT…

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

A: Given mass of iodine = 11 g Molar mass of iodine = 253.81 g/mol Number of moles of iodine =…

Q: After dissolving an unknown tablet in water, the tablet dissolves and liberates a gas. Suppose at 1…

A: Given that:            Volume of gas (V) = 360 mL = 0.360 L               Temperature (T) = 20℃ =…

Q: Isooctane (C8H18) is the primary component of gasoline, which burns according to the reaction below.…

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Q: Reaction Stoichiometry Involving Gases 71. Consider the chemical reaction: C(s) + H2O(8) CO(g) +…

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Q: Hydrogen gas (a potential future fuel) can be formed by the re- action of methane with water…

A: Given: The volume of methane gas is 25.5L The pressure of methane gas is 732torr (0.96316atm) The…

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

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Q: 4. The decomposition of 30.354 g of potassium chlorate yields solid potassium chloride and oxygen…

A: 2KClO3 → 2KCl (s) + 3O2Mass of KClO3= 30.354gT= 27.05°C   = (27.05+273.15)K     = 300.2KP= 1.075…

Q: A 0.6333 g sample of a metal carbonate was reacted with hydrochloric acid. The carbon dioxide gas…

A: We have given that the CO2 is collected at temperature of 26.0°C T = 26 + 273.15 = 299.15 K…

Q: 2 C8H18(l) + 25 O2(g) ----> 16 CO2(g) + 18 H2O(g) The above reaction is the reaction between…

A: Mass of C8H18 = 1 gallon  = 4000 g  Molar mass of C8H18 = 114 g/mol   No.of moles =  mass / molar…

Q: The catalytic decomposition of hydrogen peroxide yields oxygen gas and water, according to the…

A: The given reaction is as follows:

Q: on reacts with hydrochloric acid to produce iron (II) chloride and hydrogen gas:   Fe(s) + HCl(aq)…

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Q: Water can react with carbon dioxide to form hydrogen carbanate according to the following chemical…

A: Given :-  H2O (I) + CO2 (g) > H2CO3 (aq)  Mass of H2O = 421 g  Volume = 42.5 L  Temperature =…

Q: The combustion of octane, C,H8, proceeds according to the reaction shown. 2C,H13(1) + 25 0,(g) → 16…

A: The equation for ideal gases holds relation among the variables P (pressure), n (moles), V (volume),…

Q: Consider the following reaction: 2CuCl2 (s) --> 2CuCl (s) + Cl2 (g) 13.44 g of CuCl2 (mol. wt. 134.4…

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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: Consider the following reaction: NaClO3(s)+ Fe(s)→ O2(g)+ NaCl(s)+FeO(s)   What volume of O2 gas…

A: Given data: The mass of NaClO3 = 2.10 kg = 2100 g. Pressure = 3.00 atm. Temperature = 391 K.…

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: Suppose a 185 gram sample of hydrogen reacts as follows: 2 NO2 (g) + 7 H2 (g) → 2 NH3 (g) + 4 H20(g)…

A: 8.7 ) First we calculate moles of hydrogen gas , then we would use stoichiometry relation to…

Q: The catalytic decomposition of hydrogen peroxide yields oxygen gas and water, according to the…

A: Given:Volume of hydrogen peroxide=75.3 mLTemperature= 25oCPressure=0.976 atmVolume of original…

Q: What volume of hydrogen gas is produced when 18.3 g of sodium reacts completely according to the…

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Q: t The Goodyear blimps, which frequently fly over sporting Pvents, hold approximately 175,000 ft of…

A: Given,Volume (V) = 175,000 ft31ft3 = 28.3168 litresP = 1 atm

Q: The particulate model shown below represents the moles of particles present in the container after…

A: The reaction representation given is, Given: Total pressure after the reaction = 12 atm.

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

A: Percentage of IF5 = 20.06 %

Q: Consider the reaction between 50.0 mL of liquid methanol (CH3OH; d=0.850g/mol) and 22.8 L of O2 at…

A:

Q: The catalytic decomposition of hydrogen peroxide yields oxygen gas and water, according to the…

A: Given,Volume of gas, O2 collected over water, V = 75.3 mL = 0.0753 L   (1 mL = 0.001 L)Temperature,…

Q: 67. The hydrogen gas formed in a chemical reaction is collected over water at 30.0 °C at a total…

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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: On heating, potassium chlorate ( KClO3 ) decomposes to yield potassium chloride and oxygen gas. In…

A: A balanced chemical equation is an equation which contains same elements in same number on both the…

Q: estion 30 of 45 > The combustion of octane, C,H8, proceeds according to the reaction shown. 2…

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Q: 10) Iron nail rusts when exposed to oxygen.4Fe(s) + 3 O2(g)2 Fe2O3(s) a)What volume of oxygen gasat…

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Q: A 4.00-g sample of a mixture of CaO and BaO is placed in a1.00-L vessel containing CO2 gas at a…

A: First we have to calculate the reacted pressure of CO2 gas in the given reaction:- The initial…

Q: f you place 3.00 mol of N2 and 4.00 mol of O2 in a 35.0 L container at 25.0 °C, what will the…

A: From given data  T = 25 °C = 273 + 25 = 298 K V = 35 L  n1=3 n2= 4 Also, gas constant, R = 0.0821…

Q: A 3.75 L sample of gas from a chemical plant is collected and analyzed st 25 degrees celisus. It is…

A: The number of moles for a given chemical species refers to the ratio of mass of the species to that…

Q: The catalytic decomposition of hydrogen peroxide yields oxygen gas and water, according to the…

A: Given,The decomposition of hydrogen peroxide yields 75.3 mL of oxygen gas collected over water at…

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

A: Volume of flask = V = 10.0 L Mass of I2 = 15.0 g  Pressure of F2 , P = 2.00 atm Temperature…

Q: 4. Hydrogen gas (a potential future fuel) can be formed by the reaction of methane with water…

A: Given: Volume of methane = 25.5 L Pressure of methane gas = 732 torr = 0.96316 atm temperature of…

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

A:

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.