In determination of water hardness with EDTA, If your blank solution required a large volume of...
In determination of water hardness with EDTA,
If your blank solution required a large volume of titrant to cause a colour change (come to the end point), what information about the hardness of your sample can you draw from this observation ?
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In determination of water hardness with EDTA,
If your blank solution required a large volume of...
Name Section Experiment 28 Advance Study Assignment: Determination of the Hardness of Water 1. A 0.3946...
Name Section Experiment 28 Advance Study Assignment: Determination of the Hardness of Water 1. A 0.3946 g sample of Caco, is dissolved in 12 M HCl and the resulting solution is diluted to 250.0 mL in a volumetric flask. a. How many moles of Caco, are used (formula mass = 100.1)? moles b. What is the molarity of the Ca2+ in the 250 mL of solution? c. How many moles of Caare in a 25.00-mL aliquot of the solution in...
concentration of EDTA : 0.0104375 M Part B: Determination of water hardness Fine 1 Fine 2...
concentration of EDTA :
0.0104375 M
Part B: Determination of water hardness Fine 1 Fine 2 Initial Volume of EDTA Final Volume EDTA 0.10mL 10.70mL 1 10.60mL 0.10mL 10.80mL 10.70mL Volume EDTA added Volume of EDTA for water sample Calculate Ca2+/Mg2+ concentration in the water sample. Show the calculations for each titration. Calculation: Calculation: Average concentration of Ca2+/Mg2+ from fine titrations
Chapter 15 Determination of the Hardness of Water 3, A 100-mL. sample of hard water is...
Chapter 15 Determination of the Hardness of Water 3, A 100-mL. sample of hard water is titrated with the EDTA solution in Problem 2. The same amount of Mg' is added as previously, and the volume of EDTA required is 31.84 mL a What volume of EDTA is used in titrating the Ca" in the hard water? mL h How many moles of EDTA are there in that volume? moles c. How many moles of Ca are there in the...
RAW DATA AND OBSERVATIONS PART 1 DETERMINATION OF TOTAL HARDNESS Concentration of standardized EDTA(ag) O.06162 Table...
RAW DATA AND OBSERVATIONS PART 1 DETERMINATION OF TOTAL HARDNESS Concentration of standardized EDTA(ag) O.06162 Table 1-Titrations of 25.00 mL aliquots of mineral water with -0.01 mol L EDTA(aq at pH 10 using Calmagite® as indicator (2,5 marks) Sample 2 l 3 4 Fmol bue He i3 96 b.05 21-70 Volume CmL) Inital bunette 3 46 5.60 i7-30 volume Cm) 10 46 Volume of EDTA oddud Cmb iO.40 CALCULATIONS Use the average volume of EDTA(aq) added to your three titrations...
CALCIUM HARDNESS DETERMINATION Fill a 50 mL burette with 0.01 M EDTA solution, making sure the...
CALCIUM HARDNESS DETERMINATION Fill a 50 mL burette with 0.01 M EDTA solution, making sure the tip is full and free of air bubbles. Set Start volume. Add 50.00 mL of an unknown hard water solution into a 100 mL beaker. Obtain Magnetic Stirrer from Equipment menu. Place beaker on stirrer. Increase Stir from the context menu. Add 4 mL of 1.0 M Sodium Hydroxide. Add 100 mg of Murexide indicator. Titrate with the 0.01 M EDTA until the color...
Name Section Date QUESTIONS: EXPERIMENT 17 1. In a hardness of water determination like the one...
Name Section Date QUESTIONS: EXPERIMENT 17 1. In a hardness of water determination like the one performed in this experiment, it was found that a 25.00-ml sample of water required 12.25 ml of 0.0128 M EDTA solution for complete titration. What is the concentration (molarity) of Ca ions in the water sample? What is the concentration of CaCO; (in mg/L) in the water sample? Describe the hardness level of the water using the U.S. government standards. Camolarity CaCO3 concentration, mg/L_...
Name Section QUESTIONS: EXPERIMENT 17 Date 1 In a hardness of water determination like the one...
Name Section QUESTIONS: EXPERIMENT 17 Date 1 In a hardness of water determination like the one performed in this experiment, it was found that a 25.00-ml sample of water required 12.25 mL of 0.0128 M EDTA solution for complete titration. What is the concentration (molarity) of Ca2+ ions in the water sample? What is the concentration of Caco (in mg/L) in the water sample? Describe the hardness level of the wate using the U.S. government standards, Ca?molarity CaCO3 concentration, mg/L_...
0.1001 Sample Volume ViEDTA VI EDTA 0135L 02して'8_1 O1241L AVEDTA ,moles EDTA moles EDTA Moles E...
0.1001 Sample Volume ViEDTA VI EDTA 0135L 02して'8_1 O1241L AVEDTA ,moles EDTA moles EDTA Moles EDTA Molesca2. Sample [Ca2* moles Ca moles Ca2 mg CaCO3 mg CaCO3 Sample Hardness USGS Hardness Classification mg CaCO3 Accepted Hardness % Error Chemicals, Materials and Equipment Eriochrome Black T indicator solution (0.4 g/L) Disodium EDTA solution (0.0100 M) Ammonia/Ammonium Chloride Buffer (pH 10) Magneisum Chloride Solution (1x103 M) Saturated CaSO4 solutions previously prepared and equilibrated to 60°C and 90°0C hot/stir plate 60°C and 90°C...
can someone help with my lab for hard water determination Date DATA SHEET: EXPERIMENT 17 Standardization of EDTA...
can someone help with my lab for hard water
determination
Date DATA SHEET: EXPERIMENT 17 Standardization of EDTA Solution A. 8.0003 Concentration of standard Ca2 solution 1. Trial #1 Trial #2 Trial #3 5.00 mlL 25,00 mL Volume of standard Ca2 2. mL 17.00 mL Final buret reading mL mL 3. O00 mL OO0 mL Initial buret reading 4. mL 00 mL Volume of EDTA used 5. mL mL 6 Molarity of EDTA (Show set-up) М as.oomLcax 8.00 10 I...
Data Table 2: Water Hardness Average Volume of EDTA Used (mL) Concentration Ca2+ Ions Per Liter...
Data Table 2: Water Hardness Average Volume of EDTA Used (mL) Concentration Ca2+ Ions Per Liter of Water (mol/L) Water Hardness (ppm CaCO3) 3.33 mL 0.00333 mol/L 333.2 ppm Exercise 1 - Questions 1. Based on the analysis of your local water, would you classify its hardness as soft, moderate, hard, or very hard? Explain your answer. 2. Approximately how much calcium would you ingest by drinking eight 8-oz glasses of your local water? Hint: 1 oz (fluid ounce) =...
Name Section Experiment 28 Advance Study Assignment: Determination of the Hardness of Water 1. A 0.3946 g sample of Caco, is dissolved in 12 M HCl and the resulting solution is diluted to 250.0 mL in a volumetric flask. a. How many moles of Caco, are used (formula mass = 100.1)? moles b. What is the molarity of the Ca2+ in the 250 mL of solution? c. How many moles of Caare in a 25.00-mL aliquot of the solution in...
concentration of EDTA :
0.0104375 M
Part B: Determination of water hardness Fine 1 Fine 2 Initial Volume of EDTA Final Volume EDTA 0.10mL 10.70mL 1 10.60mL 0.10mL 10.80mL 10.70mL Volume EDTA added Volume of EDTA for water sample Calculate Ca2+/Mg2+ concentration in the water sample. Show the calculations for each titration. Calculation: Calculation: Average concentration of Ca2+/Mg2+ from fine titrations
Chapter 15 Determination of the Hardness of Water 3, A 100-mL. sample of hard water is titrated with the EDTA solution in Problem 2. The same amount of Mg' is added as previously, and the volume of EDTA required is 31.84 mL a What volume of EDTA is used in titrating the Ca" in the hard water? mL h How many moles of EDTA are there in that volume? moles c. How many moles of Ca are there in the...
RAW DATA AND OBSERVATIONS PART 1 DETERMINATION OF TOTAL HARDNESS Concentration of standardized EDTA(ag) O.06162 Table 1-Titrations of 25.00 mL aliquots of mineral water with -0.01 mol L EDTA(aq at pH 10 using Calmagite® as indicator (2,5 marks) Sample 2 l 3 4 Fmol bue He i3 96 b.05 21-70 Volume CmL) Inital bunette 3 46 5.60 i7-30 volume Cm) 10 46 Volume of EDTA oddud Cmb iO.40 CALCULATIONS Use the average volume of EDTA(aq) added to your three titrations...
Name Section Date QUESTIONS: EXPERIMENT 17 1. In a hardness of water determination like the one performed in this experiment, it was found that a 25.00-ml sample of water required 12.25 ml of 0.0128 M EDTA solution for complete titration. What is the concentration (molarity) of Ca ions in the water sample? What is the concentration of CaCO; (in mg/L) in the water sample? Describe the hardness level of the water using the U.S. government standards. Camolarity CaCO3 concentration, mg/L_...
Name Section QUESTIONS: EXPERIMENT 17 Date 1 In a hardness of water determination like the one performed in this experiment, it was found that a 25.00-ml sample of water required 12.25 mL of 0.0128 M EDTA solution for complete titration. What is the concentration (molarity) of Ca2+ ions in the water sample? What is the concentration of Caco (in mg/L) in the water sample? Describe the hardness level of the wate using the U.S. government standards, Ca?molarity CaCO3 concentration, mg/L_...
0.1001 Sample Volume ViEDTA VI EDTA 0135L 02して'8_1 O1241L AVEDTA ,moles EDTA moles EDTA Moles EDTA Molesca2. Sample [Ca2* moles Ca moles Ca2 mg CaCO3 mg CaCO3 Sample Hardness USGS Hardness Classification mg CaCO3 Accepted Hardness % Error Chemicals, Materials and Equipment Eriochrome Black T indicator solution (0.4 g/L) Disodium EDTA solution (0.0100 M) Ammonia/Ammonium Chloride Buffer (pH 10) Magneisum Chloride Solution (1x103 M) Saturated CaSO4 solutions previously prepared and equilibrated to 60°C and 90°0C hot/stir plate 60°C and 90°C...
can someone help with my lab for hard water
determination
Date DATA SHEET: EXPERIMENT 17 Standardization of EDTA Solution A. 8.0003 Concentration of standard Ca2 solution 1. Trial #1 Trial #2 Trial #3 5.00 mlL 25,00 mL Volume of standard Ca2 2. mL 17.00 mL Final buret reading mL mL 3. O00 mL OO0 mL Initial buret reading 4. mL 00 mL Volume of EDTA used 5. mL mL 6 Molarity of EDTA (Show set-up) М as.oomLcax 8.00 10 I...
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