calculate tbe hardness of the water given expeirmental dataHomework Answers
![Mt² + EDTA MEDTA)] volume of EDTA = final Burette Reading - Initial Burette Reading No of moles - Mxv (mi) 1000 Mats of Cocoz](http://img.homeworklib.com/questions/156ae630-0515-11ea-ae6e-1f0642cf4d25.png?x-oss-process=image/resize,w_560)
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calculate tbe hardness of the water given expeirmental data 25 mL of water was used Part 2: The Hardness of Water...
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...
25.8 EXPERIMENT 4: DETERMINATION OF WATER HARDNESS DATA SHEET PART II: TESTING FOR TOTAL WATER HARDNESS...
25.8 EXPERIMENT 4: DETERMINATION OF WATER HARDNESS DATA SHEET PART II: TESTING FOR TOTAL WATER HARDNESS 0.0100M Concentration of EDTA used Sample 1 25.0 22.35 22.15 Sample 2 25.0 21.7. Sample 3 35.0 21.7 Vol Hard Water Solution Vol EDTA Moles EDTA Average Moles EDTA Moles of Ca2+ Moles of CaCO3 Mass of CaCO3 Mass of Hard Water Solution Total Hardness (ppm)
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...
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...
PART 2 DETERMINATION OF CALCIUM ION CONCENTRATION Table 2-Titrations of 25.00 mL aliquots of mineral water...
PART 2 DETERMINATION OF CALCIUM ION CONCENTRATION Table 2-Titrations of 25.00 mL aliquots of mineral water with -0.01 mol L 1 EDTA(aq) at pH 12.5 using Calcon® as indicator (2.5 marks) Sample 2 3 final buette 11.15 17.80 24.35 volume (m2) L1.55 il 15 17.80 Initial Burette volume (mL) Uchure of EDTA added (mL) 6.bo 6.65 6.65 3. Use your results from Part 2 to calculate (Ca2+) in the mineral water. Convert to ppm Ca. (6 marks) What is (Mg)...
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...
Please show steps for 32 and 33. Data Table 1: EDTA Titration Volume Trial Initial EDTA...
Please show steps for 32 and 33.
Data Table 1: EDTA Titration Volume Trial Initial EDTA Volume (mL) Final EDTA Volume (mL) Total Volume EDTA Used (mL) 1 9 mL 8.6 mL .3mL 2 8.6 6 2.6 mL 3 6 4.2 1.8mL Average Volume of EDTA Used (mL) 1.6mL Data Table 2: Water Hardness Average Volume of EDTA Used (mL) Concentration Ca2+ lons Per Liter of Water (mol/L) Water Hardness (ppm CaCO3) 1.6mL 32 Using the following equation, determine the...
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) =...
Experiment 9: Water Hardness Pre-Laboratory Questions Name Section 1. Part of a buret measuring in mL...
Experiment 9: Water Hardness Pre-Laboratory Questions Name Section 1. Part of a buret measuring in mL is shown below. Read the volume to the proper number of significant digits. Volume 2. Suppose it takes 33.69 mL of 0.005123 M EDTA to titrate 25.00 mL of a hard water solution. a) How many moles of EDTA were required to titrate to the endpoint? b) How many moles of hard water ions, expressed as moles of Ca?", are present in the hard...
PRE-LABORATORY QUESTIONS, WATER: DETERMINING THE CONCENTRATION OF CALCIUM IONS IN WATER SAMPLES EXPT. SA HARD Prior...
PRE-LABORATORY QUESTIONS, WATER: DETERMINING THE CONCENTRATION OF CALCIUM IONS IN WATER SAMPLES EXPT. SA HARD Prior to coming to lab, carefully read the entire experimental procedure that follows and write an outline of the procedure in your lab notebook IN YOUR OWN WORDS (do not simply copy). Then, add three tables for your titrations of the blank, tap water, and CaCl samples. Complete these problems and hand in gt the bexinning of the laboratory period. Show all work. EDTA 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...
25.8 EXPERIMENT 4: DETERMINATION OF WATER HARDNESS DATA SHEET PART II: TESTING FOR TOTAL WATER HARDNESS 0.0100M Concentration of EDTA used Sample 1 25.0 22.35 22.15 Sample 2 25.0 21.7. Sample 3 35.0 21.7 Vol Hard Water Solution Vol EDTA Moles EDTA Average Moles EDTA Moles of Ca2+ Moles of CaCO3 Mass of CaCO3 Mass of Hard Water Solution Total Hardness (ppm)
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...
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...
PART 2 DETERMINATION OF CALCIUM ION CONCENTRATION Table 2-Titrations of 25.00 mL aliquots of mineral water with -0.01 mol L 1 EDTA(aq) at pH 12.5 using Calcon® as indicator (2.5 marks) Sample 2 3 final buette 11.15 17.80 24.35 volume (m2) L1.55 il 15 17.80 Initial Burette volume (mL) Uchure of EDTA added (mL) 6.bo 6.65 6.65 3. Use your results from Part 2 to calculate (Ca2+) in the mineral water. Convert to ppm Ca. (6 marks) What is (Mg)...
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...
Please show steps for 32 and 33.
Data Table 1: EDTA Titration Volume Trial Initial EDTA Volume (mL) Final EDTA Volume (mL) Total Volume EDTA Used (mL) 1 9 mL 8.6 mL .3mL 2 8.6 6 2.6 mL 3 6 4.2 1.8mL Average Volume of EDTA Used (mL) 1.6mL Data Table 2: Water Hardness Average Volume of EDTA Used (mL) Concentration Ca2+ lons Per Liter of Water (mol/L) Water Hardness (ppm CaCO3) 1.6mL 32 Using the following equation, determine the...
Experiment 9: Water Hardness Pre-Laboratory Questions Name Section 1. Part of a buret measuring in mL is shown below. Read the volume to the proper number of significant digits. Volume 2. Suppose it takes 33.69 mL of 0.005123 M EDTA to titrate 25.00 mL of a hard water solution. a) How many moles of EDTA were required to titrate to the endpoint? b) How many moles of hard water ions, expressed as moles of Ca?", are present in the hard...
PRE-LABORATORY QUESTIONS, WATER: DETERMINING THE CONCENTRATION OF CALCIUM IONS IN WATER SAMPLES EXPT. SA HARD Prior to coming to lab, carefully read the entire experimental procedure that follows and write an outline of the procedure in your lab notebook IN YOUR OWN WORDS (do not simply copy). Then, add three tables for your titrations of the blank, tap water, and CaCl samples. Complete these problems and hand in gt the bexinning of the laboratory period. Show all work. EDTA is...
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