Let's first we have to understand the experiment
In this experiment hardness of water is determined and for this EDTA standard solution is used. This EDTA forms complexes with ions in water like calcium and magnesium which cause hardness in water.
And hence hardness Is detected
Crucial step for EDTA solution is that we have to dry the moisture and dilute EDTA with dionised water
If we dont dry EDTA properly there are chances that EDTA is not dionised and hence it will not form complex with calcium and magnesium in further reaction .
Hence we have to dry EDTA properly before standardisation in this experiment.
I hope this helps if you have any query or want more detailed explanation feel free to ask in the comment section below.
Consider the possibility that the EDTA used in the experiment was not as dry as it...
In a water Hardness complexometric micro-titration, EDTA was used as a standard. The formula is : Ca ^2+ Y^4- - CaY^2 where (Y is EDTA) Suppose the EDTA used was not as dry as it should have been a. Would [EDTA] in the EDTA solution be higher or lower than the actual value? b. Would the [Ca] determined in the unknown be higher or lower than the actual value?
In a water Hardness complexometric micro-titration, EDTA was used as a standard. The formula is : Ca ^2+ Y^4- - CaY^2 where (Y is EDTA) Suppose the EDTA used was not as dry as it should have been a. Would [EDTA] in the EDTA solution be higher or lower than the actual value? b. Would the [Ca] determined in the unknown be higher or lower than the actual value? Answers: a) Due to presence of water, the actual mass of...
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hard water has high mg2+ and ca2+ concentrations, which are also complexed by edta, you are instructed to dilute the mass of zinc chloride which was analyzed with deionized distilled water, if you used hard tap water instead would the volume of edta needed to titrate this be changed? would the calculated mass of zinc be affected? what effect would the mass of calculated chlorine have?
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...
2. Ethylenediaminetetraacetic acid (EDTA) is used for a range of applications because of its ability to strongly bind metal ions via its six ligating groups. EDTA is used in the paper industry to bind Mn2+ (and other metal) ions from catalyzing the decomposition of hydrogen peroxide (H2O2), which is an important chemical for bleaching the pulp. In this example, we are going to focus on the chelation of free Mn2+ ions in a solution at pH = 7. a) If...
Ethylenediaminetetraacetic acid (EDTA) is used for a range of applications because of its ability to strongly bind metal ions via its six ligating groups. EDTA is used in the paper industry to bind Mn2+ (and other metal) ions from catalyzing the decomposition of hydrogen peroxide (H2O2), which is an important chemical for bleaching the pulp. In this example, we are going to focus on the chelation of free Mn2+ ions in a solution at pH = 7. (a) If there...
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