The last part of this question. The catalytic decomposition of hydrogen peroxide can be expressed as: 2H2O2(aq) → 2H2O(l) + O2(g) Calculate the number of moles of oxygen gas produced from the completely catalyzed decomposition of 6.60 mL sample of a 3.5% solution of H2O2. The density of the 3.5% solution of H2O2 is 1.01 g/mL. 0.00343 A trial of this decomposition experiment, using different quantities of reactants than those listed in the question above produced the following data: Volume of O2 produced at room conditions 200 mL Barometric pressure 740 torr Temperature of water 24°C Termperature of O2 25°C Vapor Pressure due to water at 25°C 22.4 torr   For the conditions listed above, calculate the volume of O2(g) produced at standard conditions of temperature and pressure. (enter your answer in liters)

Q: A 18.0 wt% solution of CaCl₂ (110.98 g/mol) has a density of 1.165 g/mL. What is the mass, in…

A:

Q: How many moles of Ca(OH) 2 are required to completely react with 300.0 L HCl solution? (HCl content…

A: Given that:  Volume of HCl solution = 300 L = 300000 ml and density = 1.2 g/ml So mass of solution =…

Q: 10 mL of         a          30     M         sodium           phosphate      solution…

A: The mass of lead phosphate precipitate is calculated as,

Q: The concentration of Mg2* in a sample of coastal seawater is 1.08 g/kg. What is the molar…

A: concentration of Mg2+ = 1.08 g / kg 1.08 g/Kg means 1.08 g of Mg2+ in 1 Kg ( = 1000 g) Molar mass of…

Q: Magnesium is obtained from sea water. Ca(OH)2 is added to sea water to precipitate Mg(OH)2. The…

A:

Q: Federal regulations set an upper limit of 50 parts per million (ppm) of NH3 in the air in a work…

A: Moles of NaOH that reacted with remaining HCl is Moles of NaOH = Molarity (M) × Volume (L) n= 0.0588…

Q: Of the following substances, which ones are generally soluble in water? O NagPO4 O AgCI O K2SO4 O…

A: There are a few rules for determining solubility:- We will consider them to get the correct answer.

Q: What volume in liters of 0.250 M H2SO4 is required to neutralize a solution prepared by dissolving…

A: Neutralization reaction: The hydrogen ion of acid reacts with the hydroxide ion of a base to form…

Q: An aqueous potassium iodate stock solution is made by dissolving 6.28 mol KIO3 in sufficient water…

A: By definition, molarity of the solution is calculated as: Molarity = molesVolume (in L)   And,…

Q: Given a stock solution of 30% (w/w) hydrogen peroxide, how much solution, in mL, would you need to…

A: Given 30% (w/w) hydrogen peroxide 100.0 mL of a 5.0 M hydrogen peroxide solution Molar mass of…

Q: chemist prepares a solution of nickel(II) chloride NiCl2 by measuring out ×1.010^2μmolof nickel(II)…

A:

Q: Determine the concentration of the stock solution in molarity from which 50.0 mL was taken in order…

A:

Q: The concentration of urea in a solution prepared by dissolving 16 g of urea in 25 g of H2O is…

A: Given that, Mass of urea (solute) = 16 g Mass of water 9solvent) = 25 g Mass of solution = 16 g + 25…

Q: A chemist adds 320.0mL of a 2.1 M calcium bromide (CaBr2) solution to a reaction flask. Calculate…

A: From the given volume and molarity of the solution, moles of calcium bromide can be calculated as

Q: How many moles of Ca(OH) 2 are required to completely react with 30.00 mL HCI solution? (HCl content…

A:

Q: Milk of magnesia, which is an aqueous suspension of magnesium hydroxide, is used as an antacid in…

A:

Q: 2) Na,CO3(aq) + CaCl2(aq) → 2 NaCl(aq) + CaCO3(s) Calculate the volume (in mL) of 0.200 M CaCl,…

A: Given balanced chemical equationNa2CO3 (aq) + CaCl2 (aq) →2NaCl (aq) + CaCO3 (s)mass produced of…

Q: Lead(II) nitrate and ammonium iodide react to form lead(II) iodide and ammonium nitrate according to…

A: Calculation of number of moles of pbI2 and volume of NH4I

Q: The solubility of magnesium hydroxide, Mg(OH)2, in water is 9.0 × 10–4 g/100 mL. What volume of…

A:

Q: Ammonia (NH3, MM 17.031 g/mol) and hypobromite (OBr) react according to the following chemical…

A:

Q: How many grams of phosphoric acid is contained in a water solution of the acid

A: Balanced chemical equation: 3KOH + H3PO4 ------> K3PO4 + 3H2O

Q: Zinc and magnesium react with hydrochloric acid to produce the metal chlorides and hydrogen gas. A…

A: Mole is the amount of the substance that contains the same number of particles or atoms or…

Q: Zinc dissolves in hydrochloric acid to yield hydrogen gas as follows:Zn(s) + 2HCl(aq) → ZnCl2(aq) +…

A: The values are given as follows:

Q: calculate the molarity of a solution prepared by dissolving 1.56 g of gaseous HCl in enough water to…

A: Molarity is defined as the moles of  solute per liters of a solution.

Q: The equation for the reaction of copper and dilute nitric acid is: 3Cu + 8HNO3 ⟶⟶ 3Cu(NO3)2 + 2NO +…

A: Answer :-  Volume of Nitric acid (HNO3) solution which contains 27.0% HNO3 by mass and has a density…

Q: From the following formula, calculate the amount, in grams, of Hydrophilic ointment required to…

A: Mass of ointment = 10 g + 2g +88 g = 100g For 100 g ointment, mass of Hydrophilic ointment = 88 g

Q: An alloy consists of aluminium and zinc. If 0.2500 g of the alloy reacts with HCl hydrogen gas is…

A: Solution - According to the question - Given - Let x = grams of Zn(.25 - x)g Al * (1 mol Al/26.98 g…

Q: How many moles of Ca(OH) ₂ are required to completely react with 30.00 mL HCl solution? (HCl content…

A:

Q: An aqueous solution was prepared by dissolving 1.567 g of AgNO3 in enough water to make 250.0 mL of…

A: Molarity is one of the concentration term given by formula  Molarity = moles / volume of solution…

Q: Prior to breathalyzers, blood alcohol (C2H$OH) level can be determined by reacting a sample of blood…

A: The level of alcohol in blood can be measured with the help of redox titration with potassium…

Q: The following molecular equation represents the reaction that occurs when aqueous solutions of…

A: First we will write ionic equation then cancel the spectator ions to get net ionic equation.

Q: .1L of commercial grade hydrochloric acid is added to water to bring the total volume of the…

A: The volume(V1) of commercial grade HCl=0.1 L. The molarity(M1) of commercial grade HCl=12.4 M, The…

Q: What is the molarity of a solution made by dissolving 2.355 g of sulfuric acid (H2SO4) in water and…

A: Molarity is one of the ways to measure the concentration of a solution. The unit of molarity is…

Q: In the laboratory, 3.43 grams of CuSO4-5H20 is measured and used to prepare a 50.00 mL solution.…

A: Given, the mass of CuSO4.5H2O =3.43 gramvolume of solution =50.00 mL =0.05 Lwe are asked to…

Q: The reaction between hydrochloric acid and sodium carbonate is represented by the equation 2HCI(ag)…

A:

Q: How many moles of aluminum are required to completely react with 107 ml of 6.00 M H,SO, according to…

A:

Q: What is the minimum mass of sodium hydroxide required to neutralize a solution that was prepared by…

A: The reaction between an acid and a base gives salt and water as the product. Such kind of reaction…

Q: Complete neutralization of a mixture of magnesium hydroxide and aluminum hydroxide is required 48.5…

A: The given data contains, Volume of HCl = 48.5 ml. Molarity of HCl=0.187 M.

Q: A solution of highly concentrated Sulphuric acid having Molarity 18 M of volume 25 ml was diluted to…

A: The initial molarity of the sulfuric acid is = 18 M The initial volume of the sulfuric acid is = 25…

Q: Ammonia (NH3,NH3, MM 17.031 g/mol) and hypobromite (OBr−)OBr−) react according to the following…

A: The balanced reaction taking place is given as, => 2 NH3 + 3 OBr- -------> N2 + 3 Br- + 3 H2O…

Q: How many moles of Ca(OH) 2 are required to completely react with 300.0 L HCl solution? (HCl content…

A:

Q: A chemist prepares a solution of magnesium fluoride (MgF2) by measuring out 0.0553 g of magnesium…

A: Concentration in mol/L = Number of mols of solute/Volume of solution (L) Number of mols =mass/molar…

Q: A. In the laboratory,a student dilutes 26.6 mL of a 9.21 M nitric acid solution to a total volume…

A: Molarity = no. of moles of solute÷ volume of solution in litre

Q: Calculate the concentration of an aqueous KCI solution if 207 ml of the solution gives 14.2 g of…

A: KCI(aq)          +     AgNO3 (aq)    —>      AgCl(s)    +     KNO3…

Q: You need to make a stock solution ofMg(HCO3)2 with a concentration of 5.50 M. You have a 750.0 mL…

A: Number of moles of solute present in 1 liter of solution is known as molarity of the solution.…

Q: what mass of ammonium sulfate could you produce?

A: Molarity = number of moles/volume of solution (in L)  Number of moles = molarity × volume(in L)…

Q: A reaction is performed where 10.0 g K2S(s) are added to 250.0 mL of a 0.855 M HCl (aq) solution.…

A: The balance chemical reaction ,                                            K2S + 2HCl = H2S + 2KCl…

Q: The following photograph shows the laboratory apparatus required for preparing an aqueous solution…

A: The given diagram is represented as follows:

Q: If 20 grams of NaOH was dissolved in enough water to make 250 mL NaOH Solution, What is the…

A: Molarity is the no. of moles of solute dissolve in one litre of the solution. Given that,. no. of…

Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".