Dilute aqueous hydrogen peroxide is used as a bleachingagent and for disinfecting surfaces and small cuts. Its concentra-tion is sometimes given as a certain number of “volumes hydro-gen peroxide,” which refers to the number of volumes of O₂ gas,measured at STP, that a given volume of hydrogen peroxide so-lution will release when it decomposes to O₂ and liquid H₂O.How many grams of hydrogen peroxide are in 0.100 L of “20volumes hydrogen peroxide” solution?

Q: A mixture of solid calcium oxide, CaO, and solid barium oxide, BaO, weighing 5.107 g is added to…

A: The objective of the question is to-a) Calculate the moles of carbon dioxide consumed by the…

Q: The flame produced by the burner of a gas (propane) grill is a pale blue color when enough air mixes…

A: Given: Mass of propane is 1g. Temperature of the burner is 210.0°C. The pressure is 1.05 atm. The…

Q: When solid calcium carbonate is reacted with aqueous hydrochloric acid, the products of the reaction…

A: Answer: Volume of CO2 will be calculated using ideal gas equation which is shown below: PV=nRTV=nRTP…

Q: At 1.00 atm and 0 °C, a 5.04 L mixture of methane (CH₂) and propane (C₂H₂) was burned, producing…

A: We have to calculate the mole fraction of methane and propane

Q: A gas storage cylinder in an ordinary chemical laboratory measures 5.3 cm wide and 21. cm high. This…

A: Answer:Boyle's law states that, for any gas, at constant temperature, product of pressure and volume…

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: A 2.00 L reaction container at 25.0 °C contains CO2 (g) and O2 (g). The total pressure of the gases…

A: In this question, total volume of the container is to be determined on addition of 15.0 g of…

Q: Calcium carbonate, CaCO31s2, the principal compound in limestone, decomposes upon heating to CaO(s)…

A: Given, P = 1.3 atm V = 250 mL T = 310C

Q: Mixtures of helium and oxygen are used in scuba diving tanks to prevent “the bends.”  Calculate the…

A: Dalton's law of partial pressure: According to the Dalton's law of partial pressure the total…

Q: Given that a bomb calorimeter has a volume of 1.5 L and a temperature of 25.00°C, what pressure of…

A: The chemical equation of combustion of sucrose is written as: C12H22O11 +12 O2→12CO2+11 H2O

Q: Consider the reaction  CaO (s) + CO2 (g) → CaCO3 (g)  What mass of CO2 could be absorbed by 1.25 g…

A:

Q: The flame produced by the burner of a gas (propane) grill is a pale blue color when enough air mixes…

A: According to the question we have, The temperature of the burner is given by = 190°C The pressure is…

Q: A gas with a mass of 95.14g occupies 48.8L at 659mmHg and 25.3°C. What is its molecular weight? Use…

A:

Q: A flammable gas contains only C, H, N, and Cl. The complete combustion of a 100.0 mg sample of this…

A:

Q: A sample of 0.19 g mixture containing aluminum reacts with HCl(aq), 134 mL hydrogen gas (H₂)…

A: The ideal gas equation is PV = nRT P = pressure  V = volume n = moles of gas R = gas constant =…

Q: Carbon monoxide gas reacts with hydrogen gas to form methanol:CO(g) + 2 H2(g) -------> CH3OH(g)A…

A: The number of moles (n1) of CO (g) inside the 1.50 L reaction vessel at 305 K is calculated as shown…

Q: Use the References to access important values if needed for this question. Sodium metal reacts with…

A: The pressure of the wet hydrogen gas is the sum of the pressure of the dry hydrogen gas and the…

Q: Use both the ideal gas law and van der Waals’ equa- tion to calculate the temperature of water vapor…

A: Van der Waals equation is used for real gases.  This equation relates the temperature, pressure,…

Q: The flame produced by the burner of a gas (propane) grill is a pale blue color when enough air mixes…

A:

Q: The oxidation of trichloroethane results in the following reaction equation: 4 CaH,C|a() + 11 0, (g)…

A:

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 sample of solid potassium chlorate was heated in a test tube and decomposed into potassium…

A:

Q: Part A What volume of O2 at 722 mmHg and 21 °Cis required to synthesize 22.5 mol of NO? Express your…

A: Given that: pressure, P = 722 mmHg = 722760= 0.95 atm temperature, T = 21 oC = 21 + 273 = 294 K…

Q: (a) A sample of nitrogen gas occupies a volume of 3.00 L at 760 mm Hg and 0.0 °C. If the volume of…

A: The ideal gas equation is given by, P1V1T1=P2V2T2 where P is the pressure, V is the volume and T is…

Q: P4(g) + Br2(g) --> PBr3(g) What volume of phosphorus tribromide will be produced at 22 oC and…

A: Molar mass of P4 = 124 g/mol Hence moles of phosphorus reacting = mass / molar mass = 48.5 / 124 =…

Q: 25 g of hydrogen chloride have been treated with 50 g of manganese dioxide, obtaining manganese (II)…

A: Volume of chlorine obtained is: 4.31 LExplanation:

Q: The volume of a sample of pure HCl gas was 289 mL at 24 ° C and 137 mmHg. It was completely…

A: The number of moles of HCl is calculated as,

Q: The volume of a sample of pure HCI gas was 239 mL at 24°C and 177 mmHg. It was completely dissolved…

A: Given that, Volume of HCl gas =239mL = 0.239LPressure  P = 177 mmHg *                     = 0.233…

Q: Nhich list below is an allowable set of quantum numbers for an electron? mi m. 1 +1/2 -1 -2 b 2 -1…

A:

Q: A mass of 9.60 g carbon monoxide is reacted with 4.84 g hydrogen to form methanol. CO(g) +2 H₂(g) →→…

A: CO(g) + 2H2(g) → CH3OH (g)Mass of CO  = 9.60 g Mass of H2  = 4.84 gThe reaction was performed in a…

Q: Ancient Romans built often out of bricks and mortar. A key ingredient in their mortar was quicklime…

A:

Q: A 40.0 g sample of potassium metal is allowed to react with excess hydrochloric acid to produce H2…

A: First we would Calculate moles of Hydrogen gas produced and using ideal gas law we would Calculate…

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

A: To solve this problem we will use Stoichiometry of balanced chemical equation .  First we will find…

Q: A 2.00 L reaction container at 25.0 °C contains CO2 (g) and O2 (g). The total pressure of the gases…

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Q: When solid calcium carbonate is reacted with aqueous hydrochloric acid, the products of the reaction…

A: The reaction is given as, CaCO3 + 2 HCl →CaCl2 + H2O + CO2

Q: A 1.19 g sample of an unknown halogen occupies 109 mL at 398 K and 1.41 What is the identity of the…

A: Given : Volume = 109 ml  Temperature = 398K  Pressure = 1.41 atm Mass = 1.19 g

Q: Oxygen gas was collected in 500.0 mL flask at 26 oC from the catalytic decomposition of hydrogen…

A: We are given a decomposition reaction and asked to calculate mass of reactant decomposed.

Q: Sulfur dioxide (SO₂) gas reacts with oxygen (O₂) in a glass bulb to generate gaseous SO3. In the…

A: Answer:At constant volume, ideal gas equation would be:Here:

Q: 13. If 3.5 kg of Fe is produced by the following reaction, what volume, at STP, of CO2 would be…

A: Fe2O3(s) + 3CO(g) → 2Fe(s) + 3CO2(g)  Given mass Fe produced = 3.5 Kg =3500 g Number of moles of Fe…

Q: What volume of hydrogen gas, in mL, is produced from 0.128 g Mg reacting with an excess of HCI at a…

A: A question based on the mole concept. Using the information about the number of moles of reactant…

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Q: 0380 of Mg strip reacted completly with 6 M HCL in the gas burret and 35.8 mL of hydrogen gas is…

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.