Hello, Suppose the oxalic acid sample used to standardize your NaOH solution was contaminated with NaCl. Would your calculated value for the NaOH normality be too high, low or unaffected? Expain. Thank you in-advance, :-)
Q: BOD determination using modified Winkler method Determination of molarity of a standard solution:…
A: Since you have asked the multiple question . we will solve the first question for you .If you want…
Q: How would the following errors change the calculated value of the percent oxalic acid in the…
A:
Q: One of the following statements is incorrect: O A standard solution should react completely with the…
A: The solution is given below -
Q: You are required to prepare working standard solutions of 1.00 × 10−5, 2.00 × 10−5, 5.00 × 10−5, and…
A: Given M₁ = 0.100M stock solution V₁ = volume of Stock solution M₂ = Working standard V₂ = Volume of…
Q: Make a rough sketch of a titration curve that represents your experimental results. Label the axes:…
A: KHP (potassium acid phthalate) is a weak acid. It has a pH of around 4.0. On the other hand, NaOH is…
Q: unknown base with hydrochloric A mixture of an acid concentration was 0.01 normal, and the volume of…
A:
Q: permanganate
A: Dear student this question is related to end point concept.
Q: tebrite HI a कल्बे Calence cauction between Bacolt2 Solution with physicat HANDWRITTEN stater. GIVE…
A: Given, The balanced reaction between HI and Ba(OH)2 in aqueous solution is:
Q: (Concentration) You are tasked to prepare 62.5 ppm of a caffeine standard for an analysis. You need…
A: Concentration in ppm=(mass of solute/Mass of solvent) × 10^6 Previously Concentration 0.025gm…
Q: Vitamin C content in nutraceutical fomulation can be detemined by 2,6- dichloroindophenol…
A: Vitamin C is one of the water soluble vitamins. It is found in sour fruits and is important to…
Q: lews SEC # Evaluation of Commercial Bleaching Solutions 22 DATA SHEET Brand name of commercial…
A: Concentration of NaOCl = M1 = 0.175M VOlume of NaOCl = V1 Concentration of KI = M2 = 0.225M Volume…
Q: What is the relative retention of the two solute?
A: relative retention of the two solute
Q: Procedure: 0.0402 g of water was titrated with Fisher's reagent according to the pharmacopoeial…
A: The T-factor for the mentioned titration can be calculated using the expression: =0.1566×weight of…
Q: -sodium chloride-congo red, btained when the filtrate is allov
A: We know that, Recrystallization is the process in which deformed grains of the crystal structure are…
Q: For the extraction of acid from a mixture of carboxylic acid and biphenyl you began with 200 mg of…
A: Percent recovery can be calculated using the initial amount and amount recovered.
Q: Which of the following is a good description of a standard solution as a titrant? Section а.…
A:
Q: Given the following data and the λmax determined in the previous questions, determine: 1) the molar…
A: Since you have posted question with multiple sub-parts, we are entitled to answer the first 3 only.…
Q: If Benadryl Elixir containing 25 mg diphenhydramine hydrochloride per 10 mL is evaporated to 70% of…
A:
Q: A solid chloride sample weighing 0.09969 g required 18.25 mL of 0.05205 M AGNO3 to reach the…
A:
Q: Q1 H2CO3 = HCO3 Carbonic anhydrase co, dissolves in plasma Carbonic acid Bicarbonate ion co H0-H,co.…
A:
Q: Table 1: The result for test tube I to 8 using of BSA stock solution. Tube BSA Cone H;O (ml) BSA…
A: Lambert Beer's law states that absorbance of a solution is proportional to concentration of…
Q: 20 aspirin tablets labeled 80mg were dissolved in 100mL of 90% ethanol. A 10mL aliquot was taken and…
A: The acetylsalicylic acid, commonly known as aspirin, is one of the most important analgesic drugs…
Q: Table 1: Volumes in of iodine in mL used to titrate mixtures of 10 mL of reaction mix and 10 mL of…
A: Given : CF = 1.06 TVS (mg/hour) = x (ml) X CF ( mg vit.C/ mL iodine ) X TV (mL/…
Q: FeCl3 and MgCl2 solution was prepared by dissolving FeCl3 (AR) and MgCl2 (AR) in distilled water.…
A: Hydrolysis is a process in which the compound reacts with water. The required compound in this given…
Q: Given the following data and the Amax determined in the previous questions, determine: 1) the molar…
A: Since you have posted question with multiple sub-parts, we are entitled to answer the first 3 only.…
Q: Accurately prepare a 50cm stock solution of (approx.) 0.003M potassium permanganate solutic Very…
A: Given that: the volume of potassium permanganate solution = 50 cm3 the volume of potassium…
Q: uestion: Calculate the percent of sodium ypochlorite in the original bleach bottle using pur average…
A: The question is based on quantitative analysis. we have to calculate percentage sodium hypochloride…
Q: Given the volume of 0.4108 M NaOH used determine the concentration of 10 ml sample each from…
A: Given, Concentration of NaOH solution = 0.4108 M Volume of each sample = 10 mL Volume of NaOH…
Q: A practitioner will make a titration curve. The practitioner pipetted 10 mL of 0.1 M HCl solution…
A: "Since you have asked multiple questions, we will solve the first question for you i.e (HCl vs…
Q: If the value of the blank solution is equal to 7.0 g/cm3 while the salt concentration is 9.7 g/cm3.…
A: The Seta Salt in Crude Analyzer is a robust and portable instrument for determining the chloride…
Q: The average concentration of cadmium (Cd) in .3 tea leaves sample is 68.0(±1.5) ppm Cd. If the true…
A: Given that: average concentration of Cd = 68.0 (±1.5) ppm true concentration = 70.0 ppm To find:…
Q: the percentage of sodium bicarbonate in the sample
A:
Q: 6 I- + BrO3- + 6 H+ ----- 3 I2 + Br- + 3 H2O Rate= k[I-]m[BrO3-]n[H+]p rate=…
A: #Q.1: In order to begin the reaction, we have to mix all the volumes. Hence total volume of the…
Q: Type the procedure for calibration of burette
A: Burette is an apparatus used in laboratory to measure amounts of liquid within chemical for process…
Q: ) When considering the overall dialysis procedure, why is it important to exchange old/used dialysis…
A: Since you have asked multiple questions, we have solved the first question for you. If you want any…
Q: A weight of 0.50 g was taken impure container containing sodium carbonate and bicarbonate. Dissolved…
A: In the carbonate composition analysis, the mixture containing unknown amounts of sodium carbonate…
Q: 13.00 mL pFe2+ the equivalence point, V. pFe2+ = 17.50 mL pFe?+
A: The question is based on the complexometric titration of ferrous ions and EDTA. we have to calculate…
Q: d) If the uncertainty in one volume reading for the class A burette used is 0.03 mL., find the…
A:
Q: Estimation of Dissolved Oxygen experiment I want 10 Precautions at lest for this experiment
A: Precuations
Q: the titrant was consumed in each run? Trial 1: 0.009981 M Trial 2: 0.009862 M Trial 3: 0.01029 M
A:
Q: Dissolve 1.7 g in a mixture of 2 ml. of nitric acid (-130 g/l) TS and 40 ml of water, and proceed as…
A: The analyst recorded a weight of 1.8652g of sample using an analytical balance.
Q: Chromatography: Evaluating Pen Inks PreLab Questions Name Section 1. Observe the following picture…
A: When there is more than one sample, the TLC spotting technique must be carefully performed. 1. Do…
Q: 1. Prepare a fresh stock solution of 50 cm3of 0.2% ascorbic acid. 2. Prepare 5 standard solutions…
A: 0.2% solution is equivalent to 2mg/mL. Since, the stock solution has to be 50cm3 , i.e. 50mL. For…
Q: A required characteristic of a primary standard with which we would use to standardize our sodium…
A: The substances which do not react with the components of air in open state and retained its…
Q: a) You are provided with a stock solution of 0.1M imidazole. Make the appropriate dilution with…
A:
Q: a) The value for Ψ in root tissue was found to be -3.3 bars. If you take the root tissue and place…
A: ψ=-i·C·R·TWhere,ψ = Is the solute potentiali = Is the ionization constantC = is the molar…
Q: A Sodium Chloride (0.1920g) NaCl was assayed using volhard Method, using 52mL of 0.0975N AGNO3 and…
A: Given that - Mass of NaCl = 0.1920 g Normality of AgNO3 = 0.0975 N Volume of AgNO3 = 52 mL…
Q: Which of the following methods of preparing 0.0010M HCl solution from 1.0M stock HCl Solution will…
A: The task is to determine overall uncertainty while preparing 0.0010 M HCl solution from 1.0 M stock…
Q: An unknown sample of Cu2+gave an absorbance of 0.262. Then 1.00 mL of solution containing 100 ppm…
A:
Hello,
Suppose the oxalic acid sample used to standardize your NaOH solution was contaminated with NaCl. Would your calculated value for the NaOH normality be too high, low or unaffected? Expain.
Thank you in-advance,
:-)
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 2 images
- Please determine how to make a working standard Solution of about 0.010mg/mL. Caffeine will be the active. Diluent will be water.1. A 1.2-gram sample of lanolin was treated with Wij’s solution and excess potassium iodide solution. The liberated iodine reacted with 30 ml of 0.1 N sodium thiosulfate solution. If the iodine value was determined as 12.69, what is the volume used in blank titration? 2. A fat sample with combination of acids contain standard hydrochloric acid for blank and sample with 8mL and 5mL respectively. The normality of the standard hydrochloric acid is 0.93N and the weight of the sample is 3 grams. Calculate the saponification value. 3. A 3.50-gram sample of Streptomycin powder was tested for its water content. If the water equivalence factor of the KF reagent was 4.6, what is the percentage water content of the sample if 9.2 ml of the KF reagent was used? 4. A 500mg oil sample is taken from a conical flask and is dissolved in 50mL distilled alcohol. An indicator is added and is then titrated against 0.112N KOH until a slight pink color appears. It took 17.6mL of the titrant to reach the…A sample is analyzed for chloride using the Volhard method. What is the percentage chloride as NaCl using the following data? Weight of sample: 303.0 mg AgNO3 used: 40.00 mL of 0.1234 M KSCN used: 12.20 mL of 0.0930 M
- how to find culculated ka and literature Ka for acetic acid?What weight of the soda ash (impure Na2CO3) should be taken for analysis in order that the number of milliliters of 0.500 N acid used will be equal to one-half of the percentage of Na2CO3 in the sample? Note: Please include the complete solution. Thanks!Calculate the gram of hydrochloric acid mixed, 25 %, specific gravity 1.19, to prepare 300 ml of a 0.2 M solution? (Gpt/Ai Answer not allowed) And should correct
- Can you help me determine the required amount of 500mg ascorbic acid tablets to puverize the necessary amount of distilled water to make the desired concentration of stock solution (0.1M) Show complete and justifiable computations pls.The first goal is to make the oxalic acid standard solution. You measure 1.5232 g of oxalic acid on an analytical balance, add it to a 250-mL volumetric flask and add deionized H2O to a final volume of 250.0 mL. Molar mass of H2C2O4•2H2O = 126.07 g/mol Mass of H2C2O4•2H2O = 1.5232g Volume of H2C2O4•2H2O solution = 250.0mL What is the Molarity H2C2O4 standard solution ?An impure sample containing carbonate and sodium bicarbonate, weighing 0.5 g, was taken. It was dissolved in distilled water and then flushed with 0.1 N hydrochloric acid. If the burette reading at the end point of the phenolphthalein index is 10.5 milliliters, and at the orange methyl index end point it is equal to 30.1 milliliters. So, the percentage of sodium bicarbonate in the sample is ............., knowing that the molecular weight of sodium bicarbonate is 84 g/mol.
- Prepare 250 mL stock acetic acid solutions and from this solution prepare 100 mL of eachstandard solutions (you have pippette with sensitivity of 0.1 mL). (0.015 M 0.030 M 0.060 M 0.090M 0.12 M 0.15 M)Estimation of Dissolved Oxygen experiment I want 10 Precautions at lest for this experiment1. 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?