50.00 cm3 of a 1.5784 mol.dm-3 solution of potassium hydroxide is transferred to an empty 700.00 cm3 volumetric flask. This flask is made up to the mark with distilled water and then shaken well. The concentration of the potassium hydroxide in this second flask is:

Q: The molar ratio of lead(II) hydroxide to water from the reaction below is 2:1 Pb(OH), + 2HCI - 2H,0…

A: • The given balanced chemical equation is,           Pb(OH)2 + 2HCl → 2H2O + PbCl2    • The given…

Q: What is the final volume V2

A: Given :-  Initial concentration = 39.4 % (%m/v)  Final concentration = 21.0 % (%m/v)  Initial volume…

Q: Explain in terms of the Kinetic Molecular Theory the following situations: a) Why does compressing…

A: Kinetic molecular theory is bassed upon the interactions of molecules and movement of molecules…

Q: Solutions of cyanide salts are still widely used in the extraction of gold metal from its ores. It…

A: Here, we need to determine the percentage purity of the potassium cyanide in the sample.

Q: A 2.0 g of MgCO, was dissolved and diluted to exactly 500-mL volumetric flask. If 50-mL aliquot was…

A: The mass of magnesium carbonate present in 500 mL solution is = 2.0 g The mass of magnesium…

Q: The procedure for the synthesis of menthone indicates that you should use 10 cm³ of 6M sulphuric…

A: Given that : The volume of the sulfuric acid to be used = 10 cm3 The molarity of sulfuric acid to be…

Q: Stock iron(II) solution (200Ug mL-1 Fe) ferrous ammonium sulfate hexahydrate mass= 0.1437g, transfer…

A: Given mass of ferrous ammonium sulfate hexahydrate = 0.1437g,   Molar mass = 392.13 g/mol  Total…

Q: By pipet, 19.00 mL  of a 0.823 M stock solution of potassium permanganate (KMnO4) was transferred to…

A: Solutions comprising a definite solute always follows a generalized expression known as "molarity…

Q: A tank initially contains 200 liters of fresh water. Brine containing 2.5 N/liter of dissolved salt…

A: Ans. Option (d) is right. 0.82N/L

Q: One solution states it contained a saturated 0.25302% dye by mass in ethanol solvent. By measuring…

A: % by mass refers to mass of solute present in 100 g of solution. Molarity is the moles of solute per…

Q: The toxicity of DDT (C14H9Cl5) led to a ban on its use in the United States in 1972. Determinations…

A: We have to predict the concentration of DDT .

Q: You are given a clear solution. You are told that the solution is a 50.0 wt% solution and the molar…

A: Let total mass 100 g Mass of solute 50g. Mass Of solvent = 50g Density = 1.07g/cm3 Volume of solvent…

Q: 150 140 130 120 110 100 90 80 70 60 50 40 30 XCIO3 10 -Ce₂(506)s D Đ 10 20 30 40 50 60 70 80 90 100…

A:

Q: The solubility of KNO3 (in gr KNO3 per 100 gr water) is 155 gr KNO3 at 75 oC and 38 gr KNO3 at 25…

A: The solubility curve of KNO3 suggest that its solubility is different at different temperatures. As…

Q: Using dimensional analysis, find the theoretical mass of the Zn3(PO4)2-4H20 precipitate that should…

A: Given : Mass of Zn(C2H3O2)2.2H2O reacting = 2.19 g Molar mass of Zn(C2H3O2)2.2H2O = Atomic mass of…

Q: 3- Reaction between barium chloride and sulfuric acid: A volume V= 100 ml of solution S1 with…

A:

Q: When working with very low concentrations, such as 0.000245 M, it can be more convenient to…

A: Molarity: It is the number of moles of solute present per Litre of the solution. The units of…

Q: Molarity of nitric acid, M 1.00 Volume of nitric acid, mL 10.00 Molarity of sodium hydroxide, M…

A: Given: Concentration of HNO3 = 1.00 M Concentration of NaOH = 1.00 M Volume of NaOH solution added =…

Q: 25.0 g of sodium hydroxide is dissolved in 150.0 g of water. What is the % (mass/mass) concentration…

A: Given :-  Mass of sodium hydroxide = 25.0 g  Mass of water = 150.0 g  To calculate :-  %(mass/mass)…

Q: 2. In Avogadro’s Number lab, we used oleic acid to create a monolayer on the surface of water. The…

A: Given: Concentration of oleic acid in solution is 0.50% by volume= 0.50 ml in 100 ml.…

Q: A researcher wants to determine the concentration of beta-carotene in carrots. She obtains a 0.609 M…

A: Given: Concentration of stock solution (M1) = 0.609 M Dilution-A: Volume of stock solution (V1) =…

Q: A sample of sodium carbonate; Na,CO3 (MW=105.9 g/mole) weighing O.3125 g was dissolved in 40.0ml…

A: Given, The molar mass of Na2CO3 = 105.9 g/mol Mass of Na2CO3 = 0.3125 g Volume of Na2CO3 solution =…

Q: Solubility of an Unknown Solute 80 60 Solubility (g solute/ 100g H,0) 40 20 10 20 30 40 50 60 70 80…

A: Solubility curve is the graphical representation amount of solute dissolved in given amount of…

Q: Flask Volume  100.0 + 100.0 + 79.6 mL = 279.6 mL Mass of Flask + Cap  143.85 g Mass of Flask +…

A: Introduction :  Its is used in analytical chemistry for the quantitative determination of the…

Q: By pipet, 15.00ml of the stock solution of potassium permanganate (KMn04) that was prepared by…

A: Mass of KMnO4 = 13.0 gm, Molar mass of KMnO4 = 158.034 gm/mol Number of moles of KMnO4 =

Q: 1. What is the mass concentration of water vapor (g H2O per m3 of air) in a liquid-water doud at a…

A: Given,

Q: A researcher wants to determine the concentration of beta-carotene in carrots. She obtains a 0.689 M…

A: Given: Concentration of stock solution (M1) = 0.689 M Dilution-A: Volume of stock solution (V1) =…

Q: Preparation of standard ethylenediaminetetraacetic acid copper(II) disodium salt solution Mass of…

A: For the ethylenediaminetetraacetic acid copper (II) disodium salt solution : Mass = 0.613 g Molar…

Q: #13  Mass percent of asprin in tablet

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

Q: By pipet, 9.00 mL of a 0.823 M stock solution of potassium permanganate (KMn04) was transferred to a…

A: Given Molarity of KMnO4 stock solution = 0.823 M = M1Volume of KMnO4 stock solution Taken = 9.0 mL =…

Q: As a chemist, you are tasked to submit a written report about the key solutes dissovled in the sea,…

A: Here, we have to write a report about the key solutes dissolved in the sea, the concentration of…

Q: What is the correct volume of 2.5 M PhMgBr in THF is needed to completely react with 1.5 mL of…

A: The quantitative relationships (moles/volume/mass) of different reaction's components is derived…

Q: 1.Determine the mass of sodium chloride required to prepare 400 ml of a Mueller-Hinton broth…

A:

Q: The solubility of KNO3 (in gr KNO3 per 100 gr water) is 155 gr KNO3 at 75 oC and 38 gr KNO3 at 25…

A:

Q: Explain the significance of a pa rtial molar quantity and how it depends on composition.

A: A partial molar property is a thermodynamic quantity that shows how a solution or mixture's…

Q: The density of commercial concentrated HNO3 is 1.41 g/mL The concentrated acid contains 69% (w/w of…

A:

Q: y pipet, 5.00 mLmL  of a 0.823 MM stock solution of potassium permanganate (KMnO4) was transferred…

A:

Q: Physical description of prepared stock solution (Transparency, color, turbidity, etc.) (Be concise…

A: In the given question, stock solution of L-ascorbic acid has been prepared. The concentration of the…

Q: Concentrated’’ sulfuric acid solution is 95% sulfuric acid by mass (and the remainder water) and has…

A:

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

A: The reaction of Zn and Mg with HCl is – Zn + 2HCl →ZnCl2 + H2Mg + 2HCl →MgCl2 + H2

Q: Temperature of hydrobromic acid (*C) 24.0 Volume of potassium hydroxide (mL) 100 mperature of…

A: As per battle by guidelines, as an expert I am allowed to solve first three sub parts. Please re…

Q: A 290.3-g sample of ground water is analyzed for calcium. The Ca2+ in the sample is first…

A:

Q: Density (g/mL) Reagent Salicylic acid Acetic anhydride Sulfuric acid Molar Mass (g/mole) Amount Mole…

A: The percentage yield of a product in a reaction is the percentage of that product obtained compared…

Q: 3-6 3 SOLUTIONS AND NAME SOLUTION CONCENTRATIONS 1415 Section Pre-Lab Assignment Experiment…

A:

Q: A stock solution of potassium permanganate (KMn04) was prepared by dissolving 13.0g KMn04 with DI…

A: Molarity: The number of moles of solute particles dissolved in 1 L of solution. M=n/v Given data…

Q: 0.500 cm3 of concentrated H2O2 solution diluted exactly to 50.00 cm3 by water. 10.00 cm3 samples…

A: Answer :-  Molarity (mol/dm3) of original concentrated H2O2 sample = 9.09 mol/dm3  Mass…

Q: (d) The mixture formed when 25 cm of 2 mol dm sodium hydroxide solution is added to 50 cm' of 2 mol…

A: Given: The volume of 2 mol dm-3 of NaOH added to 50 cm3 of 2 mol dm-3 of CH3COOH is 25 cm3. The…

Q: solution was prepared by dissolving 413 mg of  K3Fe(CN)6 (329.2 g/mol) in sufficient water to give…

A: The solution of the given question is

Q: A 244.5-g sample of ground water is analyzed for calcium. The Ca2+ in the sample is first…

A:

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".