In a common Freshman College Laboratory experiment, KClO3 is decomposed by heating to give KCl and O2. What mass of KClO3 must be decomposed to give 238mL of O2 at 28 degrees Celcius and 752 mmHg

Q: Consider the chemical reaction: 2 H2O(l) --------> 2 H2(g) + O2(g) What mass of H2O is required…

A: The moles of O2 can be determined by using the ideal gas equation as:  PV=nRT…

Q: 10. LiOH is used to condition air in spacecraft by absorbing the carbon dioxide exhaled by…

A: According to the balanced equation, 2 moles LiOH can absorb 1 mole CO2.  We can convert the mass of…

Q: In a common Freshman College Laboratory experiment, KClO3 is decomposed by  heating to give KCl and…

A: Answer:- Firstly a balanced chemical equation is written then using the simple concept of…

Q: 2) A piece of dry ice (solid CO,) with a mass of 28.8 g sublimes (converts from solid to gas) into a…

A:

Q: A) A sample of ideal gas at room temperature occupies a volume of 40.0 L at a pressure of 542 torr .…

A: Boyle’ law states that at a particular temperature and number of moles, the pressure of a gas is…

Q: What mass of solid chloride is formed from the synthesis of excess solid sodium and 35.34 L of…

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Q: Propane, C3H8(g), is used in gas grills to provide the heat for cooking. What volume of O2(g)…

A: Combustion is a process of burning a material (usually fuel) at high temperature in the presence of…

Q: Which gas would behave more ideally at the same conditions? why? CO2 N2

A: At high temperature and low pressure, all gases behave ideally.   As the temperature is lowered, the…

Q: Sodium metal reacts with chlorine gas to form sodium chloride. A closed container of volume 2.00 x…

A: The reactants given are sodium metal and chlorine gas and the product is sodium chloride. Given:…

Q: If 6.90 L of gaseous ethanol reacts with 17.2 L O2, what is the maximum volume of gaseous carbon…

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Q: What volume will 5.10 g of sulfuryl fluoride, SO₂F₂, occupy at STP? Atomic Molar Masses F 19.0 g/mol…

A: Given mass of SO2F2 = 5.10 g  Gram molar mass of SO2F2 = Atomic mass of S + 2 x Atomic mass of O + 2…

Q: Which of the following statements is true for real gases? The volume occupied by the molecules can…

A: The 1st and 4th option are correct that are :  The volume occupied by the molecules can cause an…

Q: A sample of Ammonia (NH3) gas is completely decomposed to nitrogen and hydrogen gases over heated…

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Q: What is the density (in g/L) of carbon tetrachloride (CCl4) vapor at 728 mm Hg and 120 °C ?

A: It is given that CCl4 has a vapour pressure of 728 mmHg and is at a temperature of 120°C, The…

Q: A container with volume 1.48 L is initially evacuated. Then it is filled with 0.226 g of N2+. Assume…

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Q: 4. When I was in Antarctica, we celebrated the turn of the new millennium with a party. We blew up…

A: It is given that the initial temperature of filling the balloons is 19°C (292.15 K) with the initial…

Q: Balloons may contain tiny microscopic holes, which allow the gas particles within to escape via…

A: When gas comes out of a small hole, we normally termed it as effusion. From Graham's law of…

Q: what is the volume of O2 in mL and L?   Temperature of O2(°C) to the nearest whole degree: 24…

A: Temperature = 24°C = 297K Pressure = 732 mmHg= 0.963 atm R= gas constant = 0.0821Latm/molK Mass of…

Q: Liquified petroleum gas (LPG) is propane stored under sufficient pressure to liquify it. When a tank…

A: The effect of pressure and temperature is measured by Boyle’s law and Charles's law respectively.…

Q: Unit 11 Q#8 Methanol, CH,OH, burns in oxygen to form carbon dioxide and water. What volume of oxygen…

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Q: Carbon monoxide burns in oxygen to form carbon dioxide.  Provide a balanced chemical equation. What…

A: Interpretation- To write the balanced chemical equation when carbon monoxide burns in oxygen to form…

Q: What volume is occupied by 0.445 mol of CO2 at 397.0 K and 973 mmHg?

A: Given information: Moles of the carbon dioxide gas = 0.445 mol Pressure (p) = 973 mmHg Temperature…

Q: What is the density of propane gas (CH3CH2CH3, 44.1 g/mol) at 25°C and 650 mmHg

A: The numerical is to be solved based on ideal gas equation  P=Pressure of gas in atmosphere V=volume…

Q: Consider the following chemical reaction: 2H2O(1) → 2H2 (g) + O2(g) What mass of H2 0 is required to…

A: Note : Since you have posted multiple questions, we are entitled to answer the first only. Please…

Q: What volume of hydrogen at 27 °C and 723 torr may be prepared by the reaction of 8.88 g of gallium…

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Q: Aluminum reacts with chlorine gas to form aluminum chloride. 2Al(s)+3Cl2(g)→2AlCl3(s) What minimum…

A: Given data :

Q: The chlorofluorocarbon CCl2F2 can be recycled into a different compound by reaction with hydrogen to…

A: Conversion of mm Hg to atm: 760 mm Hg=1 atm Calculation of no. of mol of H2 gas: PV=nRT1 atm×5336…

Q: The Haber Process synthesizes ammonia at elevated temperatures and pressures. Suppose you combine…

A: In Habers process for the synthesis of ammonia, 3 moles of H2 gas is consumed per mole N2 gas and…

Q: Consider three 1-L flasks each containing a gas at STP. Flask A contains NH3 gas, flask B contains…

A: The ideal gas equation is as follows,                                                    P V = n R T…

Q: Carbon Dioxide can be prepared by dropping hydrochloric acid onto marble chips (CaCO3). How many…

A: As we know the carbon dioxide gas is prepared by a reaction of calcium carbonate and hydrochloric…

Q: If it takes 6.14 seconds for 16.3 mL of C₃H₈(g) gas to effuse through a pinhole into a vacuum, how…

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Q: Predict the number of molecules for diatomic gas, X, if the volume at STP is 44.80 L. [Molar volume…

A: We have to calculate the number of molecules for gas.

Q: Assuming ideal gas behaviour, what would be the density of gaseous cyanogen (C2N2) at 27. °C and 856…

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Q: Methanol is synthesized by the reaction of CO2 and H2 as seen in the reaction  CO + 2 H2 = CH3OH…

A: CO2 + 2H2 ---> CH3OH  Temperature = 22°C = 22+273 = 295 K Pressure = 756 mm Hg  = 756 /760 =…

Q: During the smelting of iron, carbon reacts with oxygen to produce carbon monoxide, which then reacts…

A: The balanced reaction taking place is given as, => 3 CO (g) + Fe2O3 (s) → 2 Fe (s) + 3 CO2 (g)…

Q: What is the density of C3H8 gas at STP, in g/L? O 1.341 g/L O 2.136 g/L O 1.802 g/L O 1.967 g/L

A: Given: Gas is C3H8. And STP conditions. Molar mass of C3H8 = Atomic mass of C X 3 + Atomic mass of H…

Q: Calculate the final Kelvin temperature when 5.00 L of fluorine gas at 50 degrees Celsius is cooled…

A: Charles’s law states that “the volume and the Kelvin temperature of a gas are directly related to…

Q: A sample of nitrogen has a volume of 4.12 L at 1,591 mmHg and 193 Celsius. What volume will it…

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Q: What volume would 2.31×10232.31×1023 molecules of an ideal gas occupy at STP?

A: According to ideal gas law PV = nRT where P = pressure = 1 atm at STP V = volume of gas n = moles of…

Q: Ammonium nitrate can be decomposed at elevated temperatures into nitrous oxide and water…

A: The volume of a gas at a particular temperature and pressure can be found using ideal gas equation…

Q: Silane, SiH4, reacts with 02 to give silicon dioxide and water: SH4 (g) + 2 O2(g)  SiO2 (S) + H2O…

A: Given: Pressure of SiH4 gas = 356 mmHg = 0.4684 atm Volume of SiH4 gas = 5.20 L Pressure of O2 gas =…

Q: A 1.00 mole sample of  solid CO2 (dry ice) is placed inside a sealed balloon and allowed to fully…

A: The conversion of the solid phase to the vapor phase is known as sublimation. This process requires…

Q: A sample of a gaseous binary compound of boron and chlorine weighing 2.842 g occupies 0.229 L. This…

A: The mass of the sample compound of boron and chlorine is = 2.842 g The mass of boron in the sample…

Q: Silane, SiH4, reacts with O2 to give silicon dioxide and water: SiH4(g) + 2 O2(g) → SiO2(s) + 2…

A: An Ideal gas- PV = nRT

Q: What do you expect to happen to the  volume of a gas it its temperature is doubled while the…

A: Since you have posted a question with multiple subparts, we will solve the first three subparts for…

Q: A substance containing only carbon and hydrogen is analyzed and found to contain 85.7% carbon by…

A: Density of compound at STP = 1.87 g/Li.e. 1 L of compound weighs 1.87 g1 mol of compound at STP =…

Q: Calculate the root mean square (rms) average speed of the atoms in a sampleof xenon gas at 0.12 atm…

A: The formula for root mean square average speed is  where R = gas constant = 8.314 J/K.mol T =…

Q: oxide of nitrogen, believed to be NO or N2O, is placed in a rigid flask with volume 1.07 L. If the…

A: The solution is as follows :

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.