a 20 mL of EDTA titrant is required to titrate 40 mL of standard 0,25M CaCO3. A 70 mL hard water sample requires 35 mL of this EDTA titrant for total hardness determination. Calculate (a) ppm Ca, (b) ppm CaCO3 in the sample.

a 20 mL of EDTA titrant is required to titrate 40 mL of standard 0,25M CaCO3. A 70 mL hard water sample requires 35 mL of this EDTA titrant for total hardness determination. Calculate (a) ppm Ca, (b) ppm CaCO3 in the sample.

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter17: Complexation And Precipitation Reactions And Titrations

Section: Chapter Questions

Problem 17.29QAP

See similar textbooks

Related questions

Q: Identify the correct oxidation states for each of the three labelled carbon atoms in the structure…

Q: pls answer g, h, i, thank u 2NO(g)+O2(g)⇌2NO2(g) + Heat a) where will the reaction be…

A: Given reaction is - 2NO(g)+O2(g)⇌2NO2(g) + Heat The reaction is in equilibrium. According to Le…

Q: 2. A beaker of water and a beaker containing a sugar solution were placed in a closed container at…

A: Since the sugar solution has lower molar fraction of water than other water beaker.(pure water)).…

Q: Which electron-pair geometry corresponds to a steric number of 5? O octahedral O trigonal…

Q: A3 Given that Given that the Butler-Volmer equation imeas = io {exp (αnFηa)/RT) - exp [-…

A: The Butler-Volmer equation is given as follows: imeas=i0{eαnFηaRT - e-(1-α)nFηaRT} ... (1) Here,…

Q: A solution of 0.125 M potassium nitrate (KNO3) at 298 K shows an osmotic 2. pressure of 5.69 atm.…

Q: 10. Between 0°C and 90°C, the potential of the cell Pt(s) | H(g. 1.00 atm) | HCl(aq, 0.100 m) |…

Q: C 1) Ace 1₂0 2)CH(CONOCH, -Co -CO,1 qo EXO,C. COME coser P CẢI co

A: Initially, imine formation will occur due to the reaction of a primary amino group and carbonyl…

Q: orm an ionic bond between magnesium and oxygen ?

Q: Describe how you can predict the ionic charge of an element based upon the group number it is in.

A: How can predict the ionic charge of an element based upon the group number it is in.

Q: The protein Westlin is 64% occupied when the concentration of its ligand, iocane, is 5 uM. Given…

A: In the given problem we need to find the KD for a given percentage of the protein occupied by a…

Q: A chemist determines by measurements that 0.075 moles of chlorine gas participate in a chemical…

A: Number of moles is calculated by dividing the given mass with molecular mass.

Q: Rk (ii) In Pt-catalyzed generation of ozone from Oxg), if Qa) + O₂(a) →→O) is the rate-determining…

A: I have attached the detailed solution to the given question in the following step:

Q: a. description of reagent (Br2 in CH2Cl2) b. Description of Baeyer’s reagent c. Description of…

A: (Br2 in CH2Cl2) is a reagent to find the presence of unsaturation or not through a addition reaction…

Q: what is the keq expression of the equation BaSO4 (s) ---> BaO (s) + SO3 (g)

A: The given reaction in equilibrium is: BaSO4 (s) ⇌ BaO (s) + SO3 (g)

Q: A + 2B → C R = k[A][B]² What is the rate constant for the reaction given the rate law and data?…

Q: The solubility of lead iodide (PbI2) at 0 °C is 0.044 g in 100 mL of water. Calculate the…

Q: 9. Calculate the pressure differential of water across the surface of a spherical droplet of radius…

Q: 1. Which two species will be able to oxidize Pb(s)? Co³⁺ and Ce³⁺ Ca and Cr Cd²⁺ and Cl₂…

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

Q: Consider the following reaction for the synthesis of nitrogen dioxide: N2(g) +202(g) →→ 2NO(g) At+34…

Q: This is the chemical formula for talc (the main ingredient in talcum powder): Mg, (Si₂O), (OH)₂ An…

A: Please find your solution below : A mole is defined as the amount of substance that contains…

Q: Which solvent below is apolar? CH3 H₂C-CN Acetonitrile Toluene 1 N.N-Dimethylformamide (DMF) III HẠC…

A: The covalent bond is formed by the sharing of electrons between the atoms.

Q: Determine if reaction of alkane and alkene with bromine is positive or negative and explain why

A: Carbon and Hydrogen containing compounds are called hydrocarbons . Hydrocarbons are classified…

Q: The maximum recommended single dose for acetaminophen is 15.0mg per kilogram of body weight for…

A: Here we are required to find the maximum dose of acetaminophen for an adult .

Q: 9. Using the appropriate half-cell reactions, and assuming y. 1, calculate the solubility product of…

A: The dissociation reaction of AgCl in water is: AgCl (s) ↔ Ag+ (aq) + Cl- (aq) For this reaction,…

Q: Consider the redox equation. CuCl₂ + Al → AICI3 + Cu 1. Which is the oxidizing agent? [Select] IL…

A: The addition of electrons or decreases in the oxidation state is known as a reduction reaction and…

Q: Hydrogen gas and iodine react to form hydrogen iodide via the reaction H2(g)+I2(g)⇌2HI(g)…

Q: Consider the voltaic cell: Mg Mg2+ (1.0 M)||H* (1.0 M)|H₂ (1 atm)|Pt(s) Which of the following…

A: Answer : increase the pressure of H2 at 2.0 atm Explanation :

Q: (5.9: Similar to Example 5.14) Use oxidation states to identify the element that is oxidized and the…

A: * An element which losses electrons that is an oxidized elements as well as it is a reducing agent.…

Q: (v) lodine pentoxide decomposes to form iodine and oxygen: 2 1205(s) 2 12(g) + 5 O₂(g) Calculate the…

Q: SHould be 4.187J, not 4.184J, so I'm not sure this is correct.

Q: QUESTION 5 (ORGANIC CHEMISTRY) Give the IUPAC names of the following organic compounds: 5.1 5.2 5.3…

Q: Initial rate data have been determined at a certain temperature for the gaseous reaction 2NO+2H2 →…

Q: Can anyone solve this and show the solution?Or step by step. Please Determine molality (m/kg) of…

A: The solution of the given question is

Q: How many "dots" would the Lewis symbol for an atom of sulfur have!

A: Sulfur is a chemical element. It has the symbol S. It has an atomic number of 16. It is a nonmetal…

Q: Consider the following equilibrium. Based on Acid-Base Chemistry, does the equilibrium favor the…

Q: boiling

A: According to the question, we need to determine the boiling point of a solution composed of 2.25 g…

Q: 5. Surface excess of the compounds that have surface activity is: 7,-0 b) l'₁ 0 d) r>0 only above…

A: The solution is given below -

Q: Identify which ONE of the following statements is INCORRECT relating to the dissolution of ionic…

A: Dissolution is the process of mixing of solute into the solvent.

Q: 5. Show how each of the following compounds can be synthesized (write all of the starting material…

A: In presence of H+ , carbocation are formed and reaction proceeds through the formation of most…

Q: 1. What is the coordination number of Ni in the complex? 2. What is the oxidation number of Ni? 3.…

A: Given, NiNH34ClO42Required, 1. The coordination number of Ni in…

Q: A mixture of krypton and neon gas is expanded from a volume of 18.0 L to a volume of 97.0 L, while…

A: Thermodynamic is branch of chemistry in which we deal with amount of heat evolved or absorbed by the…

Q: When a polymer is formed by adding monomers, a molecule of __________________ is lost. These…

Q: The adsorption of a gas is described by the Langmuir isotherm with K-0.90 kPa" at 25°C. Calculate…

Q: MOLECULE Lewis Dot Diagram Structural Diagram Name of VSEPR Shape Polar/non-polar + Reasoning CIO3¹-

Q: Consider the redox equation. NO + H₂SnO3 → H₂O + Sn + HNO3 1. The atom that gained electron/s is…

Q: Resonance structures indicate that more than one isotopic form of an element exists in the molecule.…

A: Resonance structure : Resonance structure is way of depicting the bonding in poly atomic atom by the…

Q: Chemistry Draw the organic and inorganic products for the following acid/base reaction. + X H 2…

Q: What kind of bond forms between two iodine atoms? O polar covalent O ionic bond O metallic bond O…

A: In this question we need find the type of bond formed between two iodine atoms

Q: If 47.1 g of C₂H5OH (MM = 46.07 g/mol) are added to a 500.0 mL volumetric flask, and water is added…

A: Given-> Weight of C2H5OH = 47.1 gm Molar mass of C2H5OH = 46.07 g/mole Volume = 500 ml = 0.500 L…

Question

a 20 mL of EDTA titrant is required to titrate 40 mL of standard 0,25M CaCO₃. A 70 mL hard water sample requires 35 mL of this EDTA titrant for total hardness determination.

Calculate (a) ppm Ca, (b) ppm CaCO₃ in the sample.

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

Step 2

Step 3

Step 4

Step by step

Solved in 4 steps with 4 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.

Similar questions

Complexometric titration must be performed at pH 10.0 True False
A deepwell water sample of 100 mL was titrated with 0.010 M EDTA at pH 10 ( with Mg-EDTA pH 10 buffer reagent) and consumed 31 mL. Calculate the Total Hardness of the water sample as mg CaCO3.
A 25.00 mL water sample required 14.00 mL of 0.021M EDTA to reach its endpoint. A blank titration required 2.13 mL. Calculate the hardness of the water sample in ppm CaCO3. Show the math setup.
Calculation of the Solubility from EDTA Titration Data 1. A 10.0 mL sample of supernatant liquid was titrated with 0.01022 M EDTA solution. It required 16.90 mL of EDTA to reach the end point. Calculate the [Ca^ 2+ ] and hence the solubility of CaSO 4 in 10.0 mL sample. 2. List important practical applications of complexometric titration of Ca^ 2+ ions . Please show all steps
A sample containing 0.200 g primary standard calcium carbonate (CaCO3, FW-100.09 g/mol) was dissolved in HCI and diluted to 50 mL solution. After addition of ammonia buffer and Eriochrome Black T, the prepared solution was titrated using EDTA which required 16.0 mL. Calculate the molarity of the EDTA solution. * Identify the general type of titrimetric method used. * Identify the indicator in the titration * Identify the endpoint color
Titration of 50.00 mL of 0.04715 M Na2C2O4 required 39.25 mL of a potassium permanganate solution. 2MnO4- + 5C2O4-2 +16H+ -> 2Mn2+ + 10CO2(g) + 8H2O Calculate the molar concentration of the KMnO4 solution. Pls show step by step. What type of molecules will interfere in this analysis ?
In the determination of water hardness by volumetry, AEDT is used. If the volume of 0.01 M EDTA used to titrate 100 mL of sample was 20 mL, calculate the total hardness expressed in mg/L of CaCO3.
10.0 mL sample of unknown sample containing Ca2* and Mg* titrated with 0.01 M EDTA. It need 15.0 mL EDTA to reach the end point by using E.Black T indicator and it need 15.10 mL EDTA to reach the end point by using murexide indicator, Calculate the concentration of Ca2* and Mg* in the sample
A 100 ml sample of water require 20 ml of 0.02 N EDTA for titration using EBT as indicator.100 ml of same water sample boiled and precipitate removed by filtration, the filtrate requires 9 ml of 0.02 N EDTA for titration. Calculate the total hardness, permanent hardness and temporary hardness of water sample.
The amount of calcium in physiologic fluids can be determined by a complexometric titration with EDTA. In one such analysis, a 0.100-mL sample of blood serum was made basic by adding 2 drops of NaOH and titrated with 0.00528 M EDTA, requiring 0.233 mL to reach the end point. Report the concentration of calcium in the sample as miligrams of Ca per 100 mL. (Ca = 40.078 amu).
A deepwell water sample of 100 mL was titrated with 0.010 M EDTA at pH 10 ( with Mg-EDTA pH 10 buffer reagent) and consumed 31 mL. Calculate the Total Hardness of the water sample as mg CaCO3. Ans in 3 sig figures. no need to write the unit.
One of the tests she conducted was EDTA titration to determine the hardness of the water. For this experiment, two 150.0 mL samples were utilized. The first sample required 7.45 mL of 0.02055 M EDTA titrant to reach the endpoint at a pH of 10.00. The second sample was titrated at pH = 13.0 to precipitate Mg(OH)2, and 5.55 mL of the same titrant was used to attain the endpoint. (MW: Ca = 40.08 g/mol, Mg = 24.31 g/mol, CaCO3 = 100.087 g/mol, MgCO3 = 84.314 g/mol) What is the total hardness of the water? What is concentration of Ca & Mg in the water sample? Express the answer in ppm.