Come up with a dilution scheme starting from 1000 μg/mL Mn stock solution so that the concentration of permanganate in the solutions just prior to measurement (after Step B.6.) are: 7.5, 15.0, 22.5, 30.0 and 37.5 μg/mL MnO4-.

Q: A solution is known to contain 38.04 ± 0.03 mM KCl, and you have taken an aliquot of this solution…

A: Concentration of KCl = Volume of KCl = The number of moles can be determined using the equation,…

Q: A sample (50 mL) of a bottled water was added to a 100 mL volumetric flask and then diluted to the…

A: The dilution takes place twice. First the original sample (50 mL) is diluted to 100 mL stock…

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A: AgCl is a partially soluble salt whereas NaCl is completely soluble. Thus NaCl will extert common…

Q: A 15.0% by weight solution was prepared using 90.0g of KCl and the resulting density of the solution…

A: Given % by weight = 15 % Mass of solute = 90.0 g Density of solution = 1.101 g/ml

Q: To 20,00 ml of 0,1250 mol/l solution of silver nitrate – 25,00 ml of 0,1000 mol/l solution of…

A: The pAg can be calculated by taking the negative logarithm of silver ion concentration. It can be…

Q: (14pts) Concentration Table view List view Table 4. Concentration calculations Mass of empty…

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Q: A sample with a density of 0.502 kg/L was tested in the laboratory. Upon the arrival, a 3 uL of the…

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Q: What is the solubility of Bi2S3 in g/L (At. Mass: Bi = 209; S =32 ). Ksp Bi2S3= 1.6 x 10-72 Answer…

A: The equilibrium between the soluble ions and insoluble salt can be described by the solubility…

Q: Calculate the molarity, M, of KCl when 2.65 g KCl are dissolved in 2.50 ×x 10° mL of solution. Enter…

A: Given- Weight of KCl= 2.65g Volume of solution=2.50×10^3 mL=2.50L Molarity of solution=?

Q: A solution containing unknown cations is added to three test tubes. The following anions were added…

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Q: KMnO4 and Na2C2O4 solutions were used in the reactions that took place in a back titration to…

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Q: Ksp = 1.6 x 10-4⁹ for Ag₂S at 25 °C, what is the molar concentration of Ag* at 25 °C? M (example:…

A: Ksp for Ag2S = 1.6 × 10-49molar concentration of Ag+ = ? Mmolar concentration of S2- = ? M

Q: Calculate the molarity of a solution that contains 324 grams of KNO3 (molar mass of KNO3 =86 g/mole)…

A: Given information,    Mass of KNO3 is 324 grams.    Molar mass of KNO3 is 86 g/mole    Volume of…

Q: A mixer containing 100 gal of Na,SO, solution (4 Ibs of Na2S04 per gal) is attached to a reservoir…

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Q: -3 The densities of pure water and ethanol are 997 and 789 kg. m respectively. The partial molar…

A: To calculate the change in volume relative to the pure components when preparing a solution with a…

Q: Find the normality of 0.0294 g K2Cr2O7 (MM = 294.19) dissolved in 125 mL solution.

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Q: Example 8: Calculate the weight percentage of solution prepare by mixing 5.0g AGNO3 with 100 mL…

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Q: SO4 -two content in 7689mL of a water sample was precipitated as Na2SO4. The precipitated was…

A: The mass of the empty crucible is = 27.0234 g The mass of the crucible plus Na2SO4 is = 27.7708 g…

Q: As part of this experíment you will need to determine the concentrations of Fe* and SCN+ ions…

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Q: > EL session.masteringchemistry.com MasteringChemistry ROSTER-2019-SPRI-PULLM-CHEM-101 blackboard…

A: When a solution is diluted, the expression that relates the concentration and volume of the original…

Q: 5.00 ml of the 1.0 x 10-4 M CV stock solution is first diluted to 100.ml. Then 1.00 ml pf this…

A: The objective of this question is to find the final concentration of the solution after two…

Q: Precipitimetry The chloride in a 4.321-g food sample was precipitated through the addition of 50.00…

A: The aim of this question is to explain the molar concentration of the KSCN solution the back…

Q: 8) Determine the freezing point of a solution that contains 63.8 g of naphthalene (C10H8, molar mass…

A: 8)  Given, Mass of naphthalene (C10H8) = 63.8 g Molar mass of naphthalene = 128.16 g/mol Volume of…

Q: stion 4 A sodium sulfate solution is measured at 2.2 molal in pure water at a source company.…

A: The solution is given below -

Q: ST5G.1- What is the approximate solubility [in units of MILLImolar] of an ionic compound M2X3 with…

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Q: A dilution of benzene in methanol is made by placing 1.5 mL benzene (density of benzene is 0.879…

A: Concentration of benzene can be calculated from the mass of benzene dissolved in solution.

Q: Standard Sodium Chloride Weighed mass of NaCl g in 250.0 mL Purity of NaCl = 100.03 % Molar…

A: Concentration of solution refers to amount of solute present in a given amount of solution or…

Q: Ksp = 1.3 x 10-32 for Ca3(PO4)2 at 25 °C, what is the molar concentration of Ca²+ at 25 °C? M…

A: In this question, we are dealing with the solubility product constant (Ksp) for Ca3(PO4)2 and its…

Q: A 25mL volumetric pipet is used to deliver a sample of the stock solution marked “0.6000M X2SO4”…

A: Given : concentration of X2SO4 stock solution = 0.6000 M Volume of stock solution used = 25 mL And…

Q: À 10.00 ml sample with an unknown concentration of RNU, Was additional 2.4 g of KNO, were added to…

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Q: A solution of HCl was titrated against sodium carbonate. What is the average normality of acid in…

A: The balanced chemical equation for the reaction of HCl(aq) and Na2CO3(aq) is: 2HCl(aq) + Na2CO3(aq)…

Q: The first goal is to make the oxalic acid standard solution.  You measure 1.5232 g of oxalic acid on…

A: Molarity of a solution can be obtained by dividing the number of moles of solute by the volume of…

Q: The weight percent %W/W of a saturated solution of potassium chloride in 20CO was: (NOTE: the…

A: Given, mass of the solution = 298g Mass of KCl or mass of solute = 74.5531 g   Formula for % w/w is…

Q: 7.0 mL of 3.0 M NaOH are diluted with water to a volume of 400 mL. (a) Determine the molarity of the…

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Q: What is the concentration of this stock solution in % w/v and in molarity? From this stock solution…

A: Given : A stock solution of 1.817g acetylcholine chloride is 10ml. w/v%=mass of solute…

Q: In this station, you will find a sample of table salt; the chemical formula of table salt is NaCl.…

A: Formula to calculate the mass percent of solute WV in solution. Mass percentage of solute WV=Mass of…