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- Sample containing arsenic weighing 0.800 are titrated with a standard iodine soluton. what should be the normality of the iodine in order that each ml of titrant represents 1/2% As2O3 in the sample (Answer: 0.0809 N show full solution please)2. Calculate titre of potassium dichromate, in case when 500 ml of the solution contains 1,2230 g of pure salt (М=294,185 g/mol). Express numerical result with an accuracy of: Х,ХХХ.10-хA. What is the color transition (color X and color Y) expected throughout the course of titration? B. What is the acetic acid concentration of Rei's abd Akari's vinegar in molarity?
- A 25.00 mL solution of 0.08960 M NaI is titrated with 0.05040 M AgNO3. Calculate pAg+ following the addition of the given volumes of AgNO3. The ?sp of AgI is 8.3×10−17 .35.20 mLpAg+= ?epAg+= 46.40 mLpAg+=What weight of sample should be taken for analysis sos that the volume of 0.1074N NaOH used for titration equals the percentage of potassium acid phthalate (KHC8H4O4) in the sample (Answer 2,193 g)How conductometric titrations differ from potentiometric titrations? Write down procedure to find out equivalence point in both the cases.
- A student weighs 0.3745 g of unknown and dissolves it in 45 mL of water. A 0.1125 M solution of HCl is used as a titrant. When the halfway point (phenolphthaleincolor change) of the titration is reached, the volume of HCl used is 17.21 mL. What is the estimated % Na2C03in the student's unknown?T or F: The normality of the solution obtained by dissolving the acid sample be approximately the same as that of the titrant.The titration of 0.2121 g of pure Na2C2O4 (134.00 g/mol) required 43.31 mL of KMnO4. What is the molar concentration of the KMnO4 solution? Given that the chemical reaction is 2MnO4- + 5C2O42- + 16H+ -----> 2Mn2+ + 10CO2 + 8H2O Provide a detailed solution.
- A bottle of acid in the lab is found. It is labelled as oxalic acid (H2C2O4). There is no concentration given and you don’t have reagents to carry out titration. What other measurement(s) can be made todetermine concentration of the acid?A vinegar sample of 28 mL was diluted with distilled water to a 250-mL volume. 25 mL portion ofthis solution was directly titrated with standard 0.01 mol/L NaH solution. The consumption was foundas 27.1 mL. Find the concentration (mol/L) of acetic acid in vinegar sample.In an experiment on Precipitation Titration: Determination of Chloride (Mohr's Method), why is K2CrO4 used as an indicator?