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Q: describe in detail the preparation of 800 mL of 45 parts per thousand Cl- from 0.01 M P6CI2
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Q: Consider the reaction of a 20.0 mL of 0.220 M CSH;NHCI (Ka = 5.9 x 10-6) with 12.0 %3D mL of 0.241 M…
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Q: Describe the preparation of the following reagents. 3. 375 mL of 40 ppt Cl" from 0.01 M PbCl2
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- 1- If 50 ml of water is titrated with 10 ml of 0.0130 M of EDTA, what is the totalhardness of water as CaCO3 in ppm?What is the concentration of a vanadate molybdate solution if I used 20 grams of ammonium molybdate, 0.47 grams of ammonium vanadate, 140 mL of concentrated nitric acid and then diluted this concoction to 1 L.Chemistry 2. What is the percentage of calcium sulfate using 200 mg sample and 15.2 mL of 0.0526 M EDTA solution. Each mL of 0.05M disodium EDTA is equivalent to 6.807 mg of calcium sulfate?
- 1. What must be the normality of silver nitrate solution so that each ml is equivalent to 6mg of NaCl 2. A 250mg sample of sodium chloride was assayed using volhard method.12.50ml of an unknown normality of ammonium thiocyanate and 50ml of 0.098N silver nitrate were consumed to achieve 99.7% purity. What is the normality of the ammonium thiocyanate used?2.) A 0.2185g sample of NaCl was assayed using Volhard Method with 50mL 0f 0.0998N AgNO3 and 11.9mL of 0.1350N NH4SCN. Calculate the % NaCl in the sample.How would you make a 1 mL 0.8% Tween-20 solution in PBS from a 10% stock solution?
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