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25.8 EXPERIMENT 4: DETERMINATION OF WATER HARDNESS DATA SHEET PART II: TESTING FOR TOTAL WATER HARDNESS...
Determining the Hardness of Water (from like a local well) a) Determine the total hardness of...
Determining the Hardness of Water (from like a local well) a) Determine the total hardness of 100ml sample of hard water if 25.6ml of 0.1000M EDTA was titrated into the solution. The solution also contained 2ml of pH 10 ammonium buffer and some eriochrome black indicator for the titration process to occur. Please report this value as mg CaCO3/L. (ppm) b) Determine the calcium concentration of the same 100ml hard water sample if 20.1ml of 0.1000M EDTA was titrated into...
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...
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_...
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...
determination of water hardness need help finding molarity and number of moles Determination of Water Hardness Re...
determination of water hardness
need help finding molarity and number of moles
Determination of Water Hardness Repo Repov Shee Name Sofia cortez 8:00 am Time M T W Mass of CaCO, sample 377 250 Vol. Cat solution prepared Molarity of Ca2+ Moles of Ca2+ in each aliquot titrated mol Number of moles of Caco, in sample (M.W. = 100.1 g/mol) mol
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_...
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...
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...
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...
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
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...
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_...
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...
determination of water hardness
need help finding molarity and number of moles
Determination of Water Hardness Repo Repov Shee Name Sofia cortez 8:00 am Time M T W Mass of CaCO, sample 377 250 Vol. Cat solution prepared Molarity of Ca2+ Moles of Ca2+ in each aliquot titrated mol Number of moles of Caco, in sample (M.W. = 100.1 g/mol) mol
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_...
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...
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...
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...
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
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