1. Using some of the following reagents, describe the preparation of 500 mL, pH 7 citric acid 1.8 M citric acid (H3C6H5O7, FW = 192) %3D 1.2 M sodium dihydrogen citrate (NaH2C6H5O7, FW = 214) 1.5 M sodium hydrogen citrate (Na2HC6H5O7, FW = 236) 0.8 M sodium citrate (Na3C6H507, FW = 258) О.1 М НСІ 0.1 M NaOH distilled water or citric acid, Ka, 3D 7.4 х 104, Каz 3D 1.7 х 10:5, Каз 3 4.0х 107

Q: Describe the preparation of 100 mL of 8.0 M H2SO4 from a concentrated solution that has a specific…

A: The volume of the required solution is = 100 mL The molarity of the required solution is = 8.0 M The…

Q: What volume (in mL) of 12.0 M H2SO4 is needed to contain 32.14g H2SO4? Show the solutions

A:

Q: ater (dH2O). What is the concentration of this MgSO4 solution expressed as % (m/m)? [Mwt MgSO4 =…

A:

Q: Preparation of 0.5M HCI and 0.5M NaOH

A:

Q: II. Determining the Volume of 0, Produced from the H20, Solution code number of H,O, solution Equate…

A: H2O2(aq) undergoes decomposition to form H2O(l) and O2(g). The balanced chemical equation is:…

Q: Calculate the volume of concentrated reagent required to prepare the diluted solutions indicated:…

A:

Q: The solubilities of three salts in water are shown in 1000 Pb(NO,), the graph. 900 800 K,Cr.O, For…

A: The solubility is the y-axis is in grams of the salt per litre of water. Hence, at a particular…

Q: A. DESCRIBE THE PREPARATION OF THE FOLLOWING SOLUTIONS. Show all pertinent calculations: 50 ml of…

A:

Q: 15 g of unknown organic sample was dissolve in 575 mL of Dicloromethane (DCM). The boiling point of…

A: Here the nonvolatile solute is the unknown organic sample and the solvent is Dicloromethane (DCM).

Q: You are to prepare each of the following 100-mL Test Reagents in the Laboratory with concentrations…

A:

Q: How would you make 50mL of a solution containing 0.25M NaCl and 0.05M MgCl2, starting with solid…

A: Molarity is moles of solute present in per liter of solution

Q: What is the concentration in %(v/v) of 175 mL of isopropyl alcohol (C3H8O) that is diluted with…

A: Given:Volume of isopropyl alcohol = 175 mlVol of solution on dilution = 275ml

Q: Describe the preparation of the solution. Show pertinent calculations. 1.) 50 mL of 0.5 N HCl from…

A:

Q: A 5.5L solution contains 1.5 kilogram of ethylene glycol (C2H6O2) and has a density of 1.8g/ml.…

A:

Q: Describe how you would prepare a) 2.50L of 0.225M sodium hydroxide solution starting with the…

A: Concentration of a solution is the amount of solute present in fixed amount of solvent or solution.…

Q: Express concentration of 1.55 mol% caffeine (CSH10N4O2) in wt solute/ 100 wt solvent. Solvent is…

A:

Q: Part 1: Preparation of the Primary Citric Acid Standard 1. Mass of Citric Acid: 4.05 g 2. Volume of…

A: The number of moles is determined using the following equation Number of Mole =Mass in gMolar Mass…

Q: Lambanog contains methanol (CH3OH; density of 0.792 g/mL), in which at high dosage, is lethal. If an…

A: The minimum lethal dose of methanol in lambanog is =  0.300 g/kg of body weight The body weight is =…

Q: The solubilities of three salts in water are shown in 1000 the graph. Pb(NO,), 900 800 K.Cr,O, For…

A: From the graph, we can find the solubility of each salt in water at 40 0C. For this draw a line…

Q: 0.010 mL of 0.1M Fe(II) is mixed with 9.990 mL of 0.1M Fe(III). What is the mole fraction of Fe(II)?

A:

Q: Describe the steps to prepare 100.00ml of 2.00M H2SO4 from a concentrated 5.00M H2SO4 solution using…

A: Dilution gets used for decreasing any particular soluton's concentration. This process holds…

Q: Barium chloride is reacted with sodium sulfate to produce barium sulfate and sodium chloride. How…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: What weight of HCl is present in 30mL of hydrochloric acid of specific gravity 1.19 and contains…

A:

Q: how many grams of barium carbonate BaCO3 are dissolved in: a) 1 liter of clean water b) 1 liter of…

A: The molar solubility of BaCO3 in 1 L clean water can be determined as: Ksp = Ba2+CO32-s = Ksps = 0.4…

Q: Analysis of a groundwater sample collected from Well No. 8 of Stratford, Ontario showed: pH = 7.8,…

A: For the water sample to be accurate in terms of quality standards, the total concentration of…

Q: The solubilities of three salts in water are shown in 1000 - the graph. Pb(NO,), 900 800 K.Cr.O, For…

A:

Q: A 4 M acetic acid (CH3COOH) solution lowers the freezing point by -8oC;    a 4 M KF solution yields…

A: “Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: Perform the necessary calculations for the preparation of: d) 100 mL of sulfuric acid (98.08 g /…

A: NOTE: please note according to our policies , we can only answer one question at one time. you have…

Q: Q4/ Calculate the volume and weight of concentrated MgCl2.6H2O with a concentration of 95% by weight…

A: Given:  4. Concentration of MgCl2.6H2O = 95% by wt  Density =  4.52 g/ml  Molarity of solution = 3 M…

Q: KOH in a solution that contains 1560 ppm to give 750 ml.( K=39 , O= 16 , * H=1)

A: Molarity is defined as total moles of solute present in 1000ml of solution   Given concentration =…

Q: A 30.0 mL aliquot of 0.300 M H_3 PO_4 is mixed with 90.0 mL of 0.200 M KOH, and the mixture is…

A: The molarity or the concentration can be defined as the ratio of number of moles of solute which are…

Q: How would you use a volumetric flask to prepare 250.0 mL of 0.150 0 M K2SO4?

A:

Q: How would you prepare 1.00 L of a 0.40-M solution of each of the following? a. H2SO4 from…

A: The answer to the following question is-

Q: A capstone group working on motility of bacteria ordered TTC (Triphenyl Tetrazolim Chloride), which…

A: Given that, a capstone group first wanted to prepare a stock of 100 mM of TTC (Triphenyl Tetrazolim…

Q: ... متعد د الخيارات What is the volume of sulfuric acid H2S04 needed to prepare a dilute solution of…

A:

Q: What is the molar fraction of glycine in an aqueous solution whose concentration is 0.140 molkg-1.…

A: Concentration =  0.140 molkg-1  Molar mass of water = 18.01g/mol

Q: Without doing any calculations, rank the following so that the most soluble is #1 and the least…

A: The solubility product constant (Ksp) describes the equilibrium between a solid and its constituent…

Q: 2- Describe the preparation of 500 ml of 0.074 M CI-solution from solid BaCl2. 5H20 (244.3) and CI…

A: Given, Volume of Cl- solution needed = 500 mL= 0.5 L Molarity of Cl- solution = 0.074 M Molar mass…

Q: The solubility of suberic acid C6H12(COOH)2 is 0.14 g/100 ml H2O and 0.56g/100 ml ethyl ether at 15…

A:

Q: True or False: Based on the evidence in the graph, when 10 g of Ce2(504)3 is dissolved in 100 mL of…

A: given: mass of Ce2(SO4)3 dissolved =10gvolume of water  =100ml temperature = 20∘C

Q: Describe how you would prepare 2.00 L of 0.150 M per-chloric acid from a concentrated solution that…

A: GivenSpecific gravity of HClO4 = 1.66 g/mLMass percentage of HClO4 = 70% (w/w) = 70g/100gMolar Mass…

Q: 50 ml of 10% Acrylamide, 0.05% BIS, 0.1M Tris-HCl pH 8.9. You have 0.5L of each of the following:…

A: Molarity is the percentage of stock (M1) 40 % Acrylamide, 2% Bis, 2M tris-HCl

Q: 3. How would you prepare 500.0 mL of a 0.750 M solution using a. Sulfuric acid from 18.0 M…

A: (3a) For preparation of new concentration solution from already prepared stock solution, we can use…

Q: . How many grams of PbBr2 are necessary are 250 mL of saturated solution? bBr2 = 367 gmol-1, Kgp =…

A: Ksp is the solubility product which is defined for solid.

Q: Calculate the molarity of absolute ethanol (100 % v/v ethanol).  b) Leeuwin Estate Art Series…

A:

Q: 2. Calculate the volume needed (in uL) for making the following four standard solutions (10 mL each)…

A: Concept Molarity equation Cstock x Vstock = Cdil x Vdil 1 ppm = 1 mg/L 1ppm =1mgL×1L1000 mL =…

Q: How would you prepare 1.00 L of a 0.50-M solution of each of the following? a. H2S04 from…

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