) water hardness of each trial and average ppm with calculation, please. Hard Water Trial 1 Hard Water Trial 2 Hard Water Trial 3 Initial Syringe Reading 1.0ml 1.0ml 1.0ml Final Syringe Reading 0.88ml 0.84ml 0.85ml Volume of EDTA Consumed 0.12ml 0.16ml 0.15ml Water Hardness ppm CaCO3 Average ppm

) water hardness of each trial and average ppm with calculation, please. Hard Water Trial 1 Hard Water Trial 2 Hard Water Trial 3 Initial Syringe Reading 1.0ml 1.0ml 1.0ml Final Syringe Reading 0.88ml 0.84ml 0.85ml Volume of EDTA Consumed 0.12ml 0.16ml 0.15ml Water Hardness ppm CaCO3 Average ppm

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter7: Statistical Data Treatment And Evaluation

Section: Chapter Questions

Problem 7.26QAP

See similar textbooks

Related questions

Q: Data Report Sheet: Spectrophotometric Determination of an Equilibrium Constant. Part A:…

A: Determination of K

Q: Table 2: Molarity of H2O2 and KI and Reaction Rate Trial H2O2 Concentration, M KI Concentration,…

A: trial 1 slope = 14.47 sec/ml 1/slope = 0.069 ml/sec trial 2 slope = 24.16 sec/ml 1/slope = 0.041…

Q: A solution of potassium permanganate of unknown concentration was analyzed against a standard of…

A: To calculate the value of unknown concentration, we must generate a calibration curve in which known…

Q: 300.0 mg conc 0.100 M expID: HM1-001 scale 1) EDCI, HOBT hydrate DIPEA O`HN NH H3CO HN DCM:DMF (1:2)…

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

Q: in the separation of these 8 organic herbicides using HPLC in two different modes: Isocratic elution…

A: Solution: i) part Comparison of isocratic elution and gradient elution in this experiment: Isocratic…

Q: On a 0.109-mm-diameter column with a 0.813-μm-thick stationary phase, an unretained solute passes…

A: Phase ratio is ratio between volume of the column and thickness of the film coated inside wall of…

Q: Q: A worker’s exposure to solvents was monitored for a full shift. The results are presented in the…

A: TLV-TWA stands for Threshold Limit Value-Time-Weighed Average which is defined as the threshold…

Q: Which solution is of known concentration that is used to react completely with an analyte?…

Q: Calculate the [FeSCN2+] using volumes of stock solutions. Presume that all the SCN– ions react.…

A: The data given is,

Q: TITRATION DATA In the next part of the experiment, you used the standard solution of sodium oxalate…

A: The given reaction is, 2 MnO4-+5 C2O42- + 16 H+ →2 Mn2+ + 10 CO2 + 8 H2O Given that: Molarity of…

Q: A water sample was analyzed for the total hardness through the reaction between the sample and EDTA.…

A: Given that MM of CaCO3=100.0869g/mol. Standardization of EDTA is given in the question. We have to…

Q: A supporting electrolyte is usually added to the analyte solution to minimize solution…

A: 1. SOLUTION - The correct option is (a) minimize solution resistance According to the question -…

Q: The amount of caffeine in an analgesic tablet was determined by HPLC using a normal calibration…

A: A question based on quantitative analysis, which is to be accomplished.

Q: d. A 30.0 mL portion of the water sample was titrated with the standardized EDTA solution. Total…

A: The total hardness in a water sample can be determined by titrating the water sample with EDTA, and…

Q: Calculate the hardness of water in ppm CaCO3 if 25.00mL of the sample required 15.00mL of a 0.1000M…

A: Given: Concentration of EDTA solution = 0.1000 M Volume of EDTA solution required = 15.00 mL. And…

Q: Materials and detailed methods: paragraph or two explain how the experiment was done Raw Data:…

A: Diels -Alder reaction takes place in reactions between conjugated diene and an alkene. In this…

Q: Which of the following best describes the application of flow analysis? O a Asample is injected into…

A: The flow injection method was developed by Ruzicka and Hansen in Denmark in the mid-1970. This is a…

Q: Tap water is measured for arsenic and found to have a mean signal of 0.0061. Next, a small amount of…

A: Concept: Lower limit of quantitation: A signal that is 10 times greater than the noise or the…

Q: 5. An accurately measured 2g sample of hydrogen peroxide (H₂O₂-34g/mol) was dissolved in a mixture…

A: Given following balanced Chemical equation - 2KMnO4 + 5H2O2 + 3H2SO4 -----> 2MnSO4 + K2SO4 + 5O2…

Q: I need help calculating the following values please!!!!!

A: 1.) Volume of EDTA used is calculated as : Final burette reading - Initial burette reading 2.)…

Q: from one of our neigboring countries are heavily contaminated with pesticides. Upon analysis, some…

A: WORKING OF SOLID PHASE MICROEXTRACTION :

Q: The amount of caffeine in an analgesic tablet was determined by HPLC using a normal calibration…

A: On plotting the point in the graph,

Q: Total Suspended Solids Dried at 105°C . Preparing clean and dry filter paper: Finalized filter paper…

A: We are given data for the theoretical amount of the suspended solids obtained after drying the…

Q: systematic

A: The separation of compounds under the influence of the mobile phase and the stationary phase is…

Q: Table 1: Volumes in of iodine in mL used to titrate mixtures of 10 mL of reaction mix and 10 mL of…

A: Given : CF = 1.06 TVS (mg/hour) = x (ml) X CF ( mg vit.C/ mL iodine ) X TV (mL/…

Q: Time on hotplate (min) 60, 66, 68, 75, 85, 95, Mass of ZnCO3 + Filter paper (g) 3.7123, 2.7035,…

A: Hello. Since the question contains more than three sub-parts, the first three sub-parts shall be…

Q: A sample of drinking water was tested for Pb+ and was found to have a Pb²* concentration of 17.46…

A: Given the concentration of the unspiked sample, Cunspiked = 17.46 ppb Now 1.00 mL of 2.29 ppb Pb2+…

Q: (a) Total Hardness Volume of EDTA used (V2) X 1000 ppm Volume of Sample (V1) 9 ×1000 3 180 ррт 50…

A: The water containing dissolved salts of calcium and magnesium is called hard water. Hard water is…

Q: Design a procedure on how you will prepare 1.25 M table sugar (C12H22O11) solution and 1.25 M table…

A: To prepare 1.25 M table sugar (C12H22O11)solution and 1.25 M table salt (NaCl) solution diluted to…

Q: Fluoride determination can be performed photometrically with alizarin red and Zirconium acid…

A: A question based on Beer-Lambert law, which is to be accomplished.

Q: What percentage of the recommended daily dose of calcium (1,150 mg/day) does 1.0 L of your water…

A: The question is based on the concept of quantitative analysis. We have to calculate 1 litre of water…

Q: Deduce the analytical technique used and calculate the concentration of wastewater analysed which…

A: A calibration curve and follow up questions which are to be accomplished.

Q: Very pure silver nitrate standard reagent requires standardization with primary standard NaCl or KCl…

A: Silver nitrate standardization requires Nacl primary standard. It is true.

Q: prepare an assignment on Application of HPLC in Drug Analysis(Amiloride): one page show name of the…

A: We have to prepare an assignment on application of HPLC in Drug Analysis showing name, dosage form,…

Q: Part 2: Equilibrium Constant Determination Tube Fe(NO3)3 (mL) HSCN (mL) [Fe³+]; (M) 1 1.00.015 5.0…

A: To calculate FeSCN2+ concentration in M

Q: Consider a pond with three types of fish. 1) N1= 100, M1-1 lb 2) N2-30, M2-3 lb 3) N3-10, M3-7 lb…

A: The solution is given below. Q1. 3.3077 lb Q2. 5.0465 lb Q3. 1.8571

Q: Derivatiztion of sample is carried out to: a) Improve analyte peak shape analyte resolution b)…

A: Derivatization of sample is carried out to, (a) Improve analyte peak shape (b) Increase the detector…

Q: A sample of pure water was spiked with 0.520 ng/mL silver ion. Ten replicate determinations of the…

A: Given, Sample of pure water is spiked to =0.520ngmL

Q: create a scatter plot using the concentration and absorbance data for your methylene blue standards…

A: A question based tools in analytical chemistry that is to be accomplished.

Q: Use the data below from the titration of two water samples. Calculate the average ppm for the two…

A: Hardness of water is caused by polyvalent metallic cations, though the divalent cations, such as…

Q: Consider a mixture comprised of the following proteins below: Protein i MW (kDa) Charge (pH 7.4)…

A: A question based on analytical separation that is to be accomplished.

Q: what can be an analyte for using internal standard? sample: vegetable oil containing ethyl oleate,…

A: In the analytical techniques, such as gas chromatography or HPLC, standardization of the sample…

Q: Assuming that the concentration of NaOH is 0.1M Analysis of acetic acid Trial 1 2 Volume…

A: Given: Concentration of NaOH = 0.1 M

Q: Weight of CaCO3 (g): 0.2003g Trial Volume of EDTA (mL) Molarity of EDTA (M) 1 8.60 2 8.50 8.55…

A: 1 mol EDTA neutralises 1 mol of CaCO3

Q: solubility

A: Borax : Na2B Na2B <-------> 2Na+(aq) + B^2-(aq) At Equilibrium : [Na+] = 2s and [B^2-] = s…

Q: A fly ash (ƿ = 1.8 g mL-1) aerosol consists of particles averaging 13 µm in diameter and with a…

Q: According to Transport Phenomena experiment, answer the following A Initial weight Final weight (mg)…

A: An equation for absorbance is: A=εcl where A is the absorbance, ε is the molar absorptivity,c is the…

Q: Descriptives Bronchial reactivity 95% Confidence Interval for Mean Lower Bound Upper Bound Minimum…

Q: A purple solution is prepared by mixing 5.00 mL of the blue dye solution with 6.25 mL of red dye…

A: The data given is, Given: Volume of blue dye used = 5.00 mL. And the volume of red dye used = 6.25…

Q: A sample of explosives residue is dissolved in an appropriate solvent and is injected into HPLC. The…

A: Introduction: Chromatography is a technique used to separate the mixture if solution. There are two…

Question

Q) water hardness of each trial and average ppm with calculation, please.

	Hard Water Trial 1	Hard Water Trial 2	Hard Water Trial 3
Initial Syringe Reading	1.0ml	1.0ml	1.0ml
Final Syringe Reading	0.88ml	0.84ml	0.85ml
Volume of EDTA Consumed	0.12ml	0.16ml	0.15ml
Water Hardness ppm CaCO₃
Average ppm

Expert Solution

This question has been solved!

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

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 steps with 1 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Quality Assurance and Calibration Methods

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

Concentration of Acetic Acid in a Vinegar Solution. Average molarity of NaOH Volume HC₂H30₂ sample Final buret reading Initial buret reading Volume NaOH (Show all units and all calculations) Molarity of HC₂H30₂ (unrounded) Average molarity of HC₂H302 (unrounded) Deviations Average deviation Best estimate for molarity of HC₂H302 Average mass percent HC₂H302 46.4mL Oml Ran out of Base ↓ ↓ ↓ ↓ 10.014 HOA je beart giov isults weari?! ferottelucuny Cambia) 10 Kousad Question 1. A Rolaids tablet contains calcium carbonate that neutralizes stomach acid. If 44.55 mL of 0.448 M hydrochloric acid is required to neutralize one tablet, how many milligrams of calcium carbonate are in a Rolaids tablet? CaCO, (s) + 2HCl(aq) → CaCl₂ (aq) + H₂O (1) + CO₂ (g)
A. Standardlzatlon of thlosulfate solutlon Trial 1 Trial 2 Trial 3 Initial volume of thiosulfate (mL) 0.00 20.05 2.3 Final volume of thiosulfate (mL) 20.05 40.05 22.15 Volume of thiosulfate used (mL) Molarity of thiosulfate Average Molarity of thiosulfate Calculate the molarity of the thiosulfate solution using the formula: 6 mmol S20,²- 1 mmol 10, Ms,0,2- 0.004167 M 10,- 20.00 ml Vol S20,²- used (mL)
102 Experiment 12 Determination of Molar Mass by the Freezing Point Depression Method 2. The equation ATf = Kfm is only strictly applicable to very solutions. 3. The f.p. lowering (AT;) only depends on the molality and is independent of the nature of the solute. This is known as a property. 4. A solid is melted then allowed to cool and the temperature of the liquid is recorded every 2 minutes. According to the plot below, the most probable f.p. of the solid is °C. 75.5 75.0 74.5 74.0 73.5 73.0 72.5 72.0 71.5 71.0 70.5 4 6. 10 12 14 16 18 20 22 24 26 Time (min) Temperature (°C) (Figure created by David Sarno.) р. 102
Based on the table below, calculate F-factor and X in the water sample. (Berdasarkan jadual di bawah, kirakan faktor-F dan X dalam sampel air.) 7. Abs nitrite concentration Standard 0.032 0.4ppm Xppm Water sample 0.067
A stock solution of approximately 7.7x10^-5 molar will be provided in lab. Determine the volumes of each solution needed to prepare 50.00 mL of standard solutions of concentration 0.600x10^-5molar, 1.20x10^-5molar, 2.40x10^-5molar, and 3.00x10^-5molar. Round the calculated volumes to thenearest 0.1mL.
Density of solution:Trial 1: 1.2 g/mLTrial 2: 1.2 g/mLTrial 3: 1.2 g/mL Average density = 1.2 g/mL What is the relative average deviaion, %?
SALT SOLUTION: Trial 1: Volume: 25 mLMass of 25mL solution: 29.824 gDensity: 1.2 g/mL Trial 2:Volume: 25 mLMass of 25 mL solution: 29.855 gDensity: 1.2 g/mL Trial 3:Volume: 25 mLMass of 25 mL solution: 29.816 gDensity: 1.2 g/mL METAL BAR: Method I - Trial 1:Mass of metal bar: 57.063 gVolume of metal bar: 6.7 cm^3Density of bar: 8.5 g/cm^3 Trial 2:Mass of metal bar: 57.063 gVolume of metal bar: 6.0 cm^3Density of bar: 9.5 g/cm^3 Trial 3:Mass of metal bar: 57.063 gVolume of metal bar: 6.0 cm^3Density of bar: 9.5 g/cm^3 Method 2 - Trial 1:Dimensions: diameter = 1.20 cm, height = 4.91 cmMass of metal bar: 57.063 gVolume of metal bar: 5.55 cm^3Density of bar: 10.3 g/cm^3 Trial 2:Dimensions: diameter = 1.20 cm, height = 4.95 cmMass of metal bar: 57.063 gVolume of metal bar: 5.60 cm^3Density of bar: 10.2 g/cm^3 Trial 3:Dimensions: diameter = 1.20 cm, height = 4.95 cmMass of metal bar: 57.063 gVolume of metal bar: 5.60 cm^3Density of bar: 10.2 g/cm^3 QUESTION - From your data, calculate the…
Mass of KIO3 used0.4125 gVolume of KIO3 solution prepared 100.0 mLVolume of unknown ascorbic acid solution 15.00 mLVolume of KIO3 solution used to reach endpoint13.25 mL1. Calculate the molarity of the KIO3 solution prepared.2. Calculate the molarity of ascorbic acid in the unknown solution.3. Assuming the density of the unknown solution is 1.00 g/mL; calculate the percentage by mass of ascorbic acid (C6H806) in each sample.Answers: (1) 0.01928 M (2) 0.05108 M (3) 0.300 %
STANDARDIZATION OF NAOH SOLUTION A 0.4047 g sample of primary standard grade potassium hydrogen phthalate (MM = 204.23) was dissolved in distilled H2O. The solution required 22.42 mL of the NaOH solution to reach the phenolphthalein end point. a.) Calculate the number of mmoles of KHP. b.) How many moles of NaOH will react with the KHP dissolved in water? c.) Calculate the molarity of the NaOH solution.
chools.schoology.com/common-assessment-delivery/start/4573067641?action%3Donresume&submissionld%3547892539 150 140 130 120 110 100 NANO 90 80 70 60 NH C Ka Náci 50 40 30 20 KCIÓ, 10 Cez(so 10 20 30 40 50 60 70 80 90 100 Temperature (C) The compound with the least solubility at 50 °C is OKI O NANO3 O KNO3 O NH3 O NH&CI O KCI O NaCI O KCIO3 O Cex(SOa)a DELL & Grams of solute
Concentration of the KSCN stock solution, M Volume of the KSCN stock solution, mL Initial molar concentration of SCN in a 50-ml flask, M PART A. Establishing the Beer's Law Coefficient: blank 0 0 solution 2 1.00×10-³ 2.00 solution 3 1.00×10-3 5.00 solution 4 1.00×10-³ 10.00 solution 5 1.00-10-3 15.00
Data Table 1 Enter the calculated molarity and measured conductivity values in the table. Data Table 1: Experimental Data Sodium Total Sodium Chloride Standard Chloride Volume Concentration (M or Conductivity (µS) (g) (mL) mol/L) Blank 100.00 8.965 A 0.0059 100.00 В 0.0531 100.00 0.1029 100.00