Calculate the molar concentration of EDTA since 42.35 mL of EDTA is consumed in the titration. (MgCO3: 84 g / mol).

Q: A student weighs out 0.9854 g of Na2CO3 unknown and dissolves it in 25.00 mL of deionized water. A…

A: Answer % of Na2CO3 in the unknown = 54.05% Formulas No.of moles                           = Given…

Q: TRUE OR FALSE (a) EDTA is commonly used as a PRIMARY standard for titration of metals in samples…

A: Both EDTA and EBT are used in  complexometric titration.

Q: he alkalinity of the unknown groundwaters A and B has been acquired by the dissolution of NaHCO3 and…

A: Processes that inhibit pH changes in an aquifer are called pH buffering processes. These processes…

Q: 4. Calcium in powdered milk was determined by ashing a 1.500g sample and then titrating the calcium…

A: Given: Mass of sample = 1.500 gVolume of EDTA needed for titration = 12.09 mLVolume of zinc solution…

Q: 1.963-g sample of an alloy is dissolved in HNO3 and diluted to volume in a 100-mL volumetric flask.…

A:

Q: A 0.973-g sample of canned tuna was analyzed by the Kjeldahl method. A volume of 21.15 mL of 0.1174…

A: 1. Moles of HCl required to titrate the liberated ammonia   =Volume of HCl consumed (in L)×Molar…

Q: A 100.0-mL sample of spring water was treated to convert any iron present to Fe2*. Addition of…

A: Balanced equation of the reaction between Fe2+ and Cr2O72- indicates 6 moles of Fe2+ combines with 1…

Q: Titration of 0.2342 g of pure Na,C,O, (134.0 g/mol) required 33.45 ml of KMNO, solution according to…

A: We have to calculate the Molarity of KMno4 solution

Q: Titration of 0.2342 g of pure Na,C,0, (134.0 g/mol) required 13.45 ml of KMNO, solution according to…

A: 1- Calculate the moles of C2O42- ion :  moles = [ mass / Molar mass ]  moles = [ 0.2342mol /…

Q: What are the answers to prelab  questions 1-4

A: Molarity = moles/volume of NaOH.0.096×0.0349 L = Moles of NaOH.Moles of NaOH = 3.3504 × 10-3…

Q: An unknown 8.00 ml sample containing a certain concentration of tin Sn*2 (118.7 g/mol), was treated…

A:

Q: 0.00247

A: Molarity of KMnO4 = 0.0010 M Volume of KMnO4 = 4.94 mL At equivalent point,  Geq. of KMnO4 = Geq. of…

Q: A solution containing 25.0 mL of H2C2O4 required 13.78 mL of 0.04162 N KMnO4 for titration forming…

A: Given,  25.0 mL of H2C2O4 required 13.78 mL of 0.04162 N KMnO4 for titration forming Mn2+  and CO2…

Q: To determine the concentration of an EDTA solution, the following aluminum(III) solution is…

A: metallic aluminum (m(Al) = 0.5540 g) is dissolved in dilute sulfuric acid, the resulting solution is…

Q: An EDTA solution was prepared by dissolving approximately 4 g of the disodium salt in approximately…

A: Given mass of MgCO3 = 0.07682 g Volume of water = 1 L Molar mass of MgCO3 = 84.31 g/mol

Q: 2) In order to determine the hardness of water, 100 mL sample is taken. After neutralizing the…

A:

Q: calculate a Ksp value for manganese(II) sulfide.

A:

Q: When doing a titration, it is helpful to know approximately the volume of titrant that will be…

A: The equation to calculate the unknown value from known value is given by, M1V1=M2V2 where M is the…

Q: 3µL of a solution of 295mM EDTA is added to 997µL of water.  12µL of this solution is then added to…

A: Given,  When 3µL of a solution of 295mM EDTA is added to 997µL of water.  12µL of this solution is…

Q: Calculate the concentration in ppm for 0.362 molar of magnesium hydroxide. MM: Mg: 24.30; OH: 17

A:

Q: 23 The titration of 25.0 mL of an unknown concentration H2SO4 solution requires 83.6 mL of 0.12 M…

A: The titration of 25.0 mL of an unknown concentration sulfuric acid solution requires 83.6 mL of 0.12…

Q: A student titrated a 25.00 mL sample of water with 0.0200 M EDTA. The titration required 20.40 mL of…

A: This is a simple volumetric titration,  using M1V1=M2V2 we can obtain the strength of water sample.…

Q: A 0.64 g sample containing KCl ( mw = 74.6 ) is dissolved in 50mL of water and titrated to the…

A: The %W/W of KCl in the solution has to be given,

Q: Titration of 0.2342 g of pure Na,C,0, (134.0 g/mol) required 33.45 ml of KMNO, solution according to…

A:

Q: Write the Chemical Reaction between EDTA and a heavy metal such as Iron. How does EDTA chemically…

A: EDTA is ethylenediaminetetraacetic acid. It is a hexadentate ligand and also a flexidentate ligand.…

Q: To determine the concentration of an EDTA solution, the following aluminum(III) solution is…

A: metallic aluminum (m(Al) = 0.5943 g) is dissolved in dilute sulfuric acid, the resulting solution is…

Q: 1. A 1.000 g sample.containing Na,C,0, (MM=134 mg/mmol) is titrated with 40.00 mL of 0.0200 M KMNO,…

A: Given,

Q: .A sample of alfalfa meal weighing 2.0 g is analyzed by Kjeldahl method for the percentage of…

A:

Q: 12. A 0.3284-g sample of brass (containing lead, zinc, copper, and tin) was dissolved in nitric…

A: First of all, the titration reaction with EDTA forms complexes that have 1:1 ratios of EDTA:Analyte.…

Q: Calcium in a 200-μL serum sample is titrated with 1.87 × 10−4 M EDTA solution, requiring 2.47 mL.…

A: Given data  Volume of EDTA = 2.47 mL Molarity of EDTA = 1.87 x 10-4 M Volume of sample = 200 uL…

Q: Calcium in a 50-L serum sample is titrated with 1.85 x 10-4 M EDTA solution, requiring 2.5 mL. What…

A: Given, 50 micro Litre serum sample is titrated with 2.5 mL of 1.85 x 10-4M EDTA solution. What is…

Q: ASAP: Please help me solve for Average Molarity of EDTA Standard Solution and Ca Titer (mg Ca/mL of…

A: The experimental data for the below reaction is given, Ca2+(aq) + EDTA4-(aq) ⇌ CaEDTA2-(aq)

Q: lon exchange is used to remove water hardness of a well water, which has a total hardness of 450…

A: Given data : Inlet water hardness = 450 mg/L Water hardness after treatment(due to leakage) = 15…

Q: 0.45 gm of calcium carbonate is dissolved in 1 liter of distilled water. 50 ml of this standard…

A: 1mL of standard hard water contains 1mg of CaCO3.

Q: The DO of a water sample used in a steel industry was tested by Winkler’s method. The following…

A: A question based on introduction to chemistry that is to be accomplished.

Q: 0.28g 0f MBr is dissolved in distilled water and made up to 250mL mark in a volumetric flask. 25 mL…

A: The titration  of MBr by AgNO3 is a double-displacement reaction, which is given by,…

Q: A 0.992-g sample of canned tuna was analyzed by the Kjeldahl method. The ammonia formed was…

A: The Kjeldahl method is a quantitative technique to determine the nitrogen percentage in an organic…

Q: As part of a geological team that studied a local cave, you brought with you a bunch of 1.00 g rock…

A: Given that -  Mass of sample of rock = 1.00 g  Molarity of EDTA Solution used = 0.050 M  Volume of…

Q: alculate the alkalinity of a lake if you know that the concentration of h2cos is 3000 um, hcos…

A:

Q: 0.405 g of CaCO3 is dissolved in HCl and diluted to a volume of 250.00 mL. What is the molarity of…

A:

Q: A Cu2+ solution is prepared by dissolving a 0.4728 g piece of copper wire in acid. The solution is…

A: Molarity - ratio of number of moles of solute to the volume of solution in litres. Formula is,

Q: Write the chemical equation for this: Calcium in powdered milk is determined by dry ashing a 1.50-g…

A: In this problem, we first calculate the m.moles of EDTA and from that, we can calculate the mass of…

Q: 1. A 1.000 g sample containing Na,C,O, (MM=134 mg/mmol) is titrated with 40.00 mL of 0.0200 M KMNO,…

A: It is an application of redox titration where a redox reaction occur between KMnO4 as titrant and…

Q: Show complete solution. Round-off your answers to four decimal places The amount of copper in a…

A:

Q: A 1.43 x 10-4 L solution of 45.7 mg/mL protein was analyzed using the Kjeldahl procedure. After…

A: Kjeldahl method is used to quantitative method  and it is used in the determination of Nitrogen in…

Q: An EDTA solution is standardized against 0.3982 g of 99.99% CaCO3 (100.09 g/mol) dissolved in HCl…

A: given data  mass of CaCO3 is 0.3982g the volume of EDTA Is 38.00Ml pH is 10.0

Q: The total concentration of Ca and Mg* in a sample of hard water was determined by titrating a 0.125…

A:

Q: Calcium in powdered milk is determined by dry ashing a 1.50-g sample and then titrating the calcium…

A: The given information is: Mass of sample = 1.50 g = 0.00150 kg Volume of EDTA used = 12.1 ml Volume…

Q: How can you explain titrating with EDTA metals and how the molecules can bond?

A: EDTA (Ethylenediaminetetraacetic acid) EDTA is very good titrant used for quantitative estimation of…

Q: Calcium in powdered milk is determined by dry ashing a 1.50-g sample and then titrating the calcium…

A: mass of sample = 1.5 g Titrating volume = 10 ml mass of zinc = 0.632 g Molar mass of calcium = 40…