Q: Which sentence is false about gravimetric analysis? a. It is used for inorganic b. It is used to…
A: The statement which is false about gravimetric analysis is, Relative precision 3% to 4%
Q: Mixture of NH,CI, NaCl, SiO, Iron Shavings First Separation Technique First Separated Component…
A: The mixture given contains ammonium chloride (NH4Cl), sodium chloride (NaCl), silicon dioxide (SiO2)…
Q: Put the steps in order to make 100 mL of 2.00×10-4M from 2.00×10-2 M solution of NaSCN. You have…
A: In order to prepare a 100 mL of 2.00×10-4 M, the given solution, 2.00 ×10-2 M is diluted. First the…
Q: True or false. A primary standard solid must be weighed accurately and diluted to an accurately…
A: Analytical chemistry.
Q: Which statement is valid when the multiple extraction and single extraction is compared.
A:
Q: Retention time Substance(s) Peak area (%) (min) Crude product Pure product 8.725 1,2-cyclohexanediol…
A: In the analysis of gas chromatography, the evaluation of peak area is one of the most important…
Q: A Bottle roll test was conducted on 2 kg of a soil sample at 50% solids. 50 g of the tailings was…
A:
Q: what is the biggest buret size that'll deliver 4.8mL with a relative error less than or equal to…
A: Answer - According to the question - Given - volume need to be delivered is 4.8 mL with an accuracy…
Q: In the vapor deposition method, solids are usually converted into solutions using their solvents. *…
A: A question based on general chemistry that is to be accomplished.
Q: A supporting electrolyte is usually added to the analyte solution to minimize solution…
A: 1. SOLUTION - The correct option is (a) minimize solution resistance According to the question -…
Q: d. A 30.0 mL portion of the water sample was titrated with the standardized EDTA solution. Total…
A: The total hardness in a water sample can be determined by titrating the water sample with EDTA, and…
Q: An instrumental method was validated by running an analysis on a standard solution with a known…
A: Accuracy: It is generally expressed by the percentage of error. Relative accuracy is the difference…
Q: 1) determine the glassware that can be used to deliver 4.5mL with an absolute error: a) ≤ 0.15 mL…
A: Answer - Absolute error - The absolute value of the difference between an observed value of a…
Q: The melting point of various ratios of mixtures of urea and acetaminophen) were determined and the…
A: We will plot concentration (%) on y axis and melting point on x axis. Moreover, the melting point…
Q: Calculate the average and standard deviations for each solution (and solvent).
A:
Q: Flowchart example of Recrystallization
A: Recrystallization is one of the methods used for the purification of a sample. The basic principle…
Q: A water sample is approximated to have a total hardness equal to 120.0ppm. How many milliliters of…
A: By knowing the hardness amount on particular volume of solution we can calculate the millilitres of…
Q: Data Sheet with Sample Results Note: results that require calculations are purposely left blank and…
A: Solution Mass of NaCl dissolved = (mass of beaker+stirring bar+NaCl)-(mass of beaker+stirring bar) =…
Q: What are pipeline slurry systems? How do they function?
A: Slurry is a mixture of solid in a molten state. It is denser than liquid and is mobile. The…
Q: II. lodometry II. Permanganate IV. Dichromate
A: Indicators can be defined as the substances that change colour when they are added to basic or…
Q: Explain how solvent trapping and cold trapping work in splitless injection.
A: In Gas chromatography both split and splitless injection takes place. Split injection is used when…
Q: There are 1,000 mg of a drug in 150ml. Find the percentage strength.
A: The strength of solutions is an important property and it is basically an application of percentage.…
Q: Determine the precision and accuracy of these data for dioxin. Sample 1 Sample 2 Sample 3 Known…
A:
Q: Volume of dye solution added (mL) 9.80 mL Concentration of bleach solution used (M) 0.090 M Volume…
A: Given data : The concentration of the stock yellow dye in solution in Mole (Mi) is = 3.40 x 10-5 M…
Q: 60 ml of standard hardness containing 1 mg of pure CaCO3 per ml consumed 22 ml of EDTA. 40 ml of…
A: A numerical problem based on EDTA complexometric titration, which is to be accomplished.
Q: Table 8.1 Hardness determination of water samples. mL of Volume of NazH2Y 2 H2O, mL Ca2+, mg/L…
A: First you have to standardize the EDTA solution before the titration of hard sample solution. Let…
Q: RELATIVE ABUNDANCE 100 2.2 Unknown 2.2 Rel.- abund. m/z. 94 100. 95 1.1 96 96. 97 1.1 100
A: A question based on mass spectra that is to be accomplished.
Q: I got a task in analytical chemistry to calibrate, standardize, verify and validate an analytical…
A: It is said that every location in the world is positioned differently in relation to magnetic…
Q: a) The total hardness of this sample b) The percentage error in this sample
A: Topic-- Hardness of water Hardness of water-- The simple definition of water hardness is the amount…
Q: Trituration is a process of reducing particle size which involves the addition of an appropriate…
A: There are various method of reducing the particle size such as grinding, mechanical mixing etc.
Q: Peak area proportional to mass or concentration of the individual components of the sample injected.…
A:
Q: Peak area proportional to mass or concentration of the individual components of the sample injected.…
A: The area under the peak is a function of that compound's concentration in the sample.
Q: . What is the difference between temporary and permanent hardness?
A: Difference between temporary and permanent hardness :
Q: Mean [KIO3] (based on titration) = 0.02451 mol L-1 Standard deviation in the mean [KIO3] mol L-1…
A: [KIO3] mol L-1 (χi - μ) (χi - μ)2 0.02459 0.00008 6.4 * 10-9 0.02462 0.00011 1.21 * 10-8…
Q: 4. PPM
A:
Q: gs More Erase H
A:
Q: Use the table from ion exchange column to answer the following questions: Volume (mL) of Water…
A: Ca2+ + EDTA = Ca -EDTA + 2H+ thus 1 mol of EDTA reacts with 1 mol of Ca2+ ion Thus 1000 ml 1 (M)…
Q: How many minutes does it take 4.0 x 102MB (mixed with excess A) to be reduced to 3.3 x 10 -2 M B? O…
A: For 2nd order kinetics kt = 1/A - 1/Ao Where, k = rate constant t = time taken A = concentration…
Q: Question 2 a. Define the following i. Retention time and ii. Void time
A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…
Q: improve
A: We know that resolution is a measure of how well two Elution peak can be differentiated in…
Q: Retention time is the time taken for the mobile phase to reach the detector. True False
A: Answer - The above statement is false Explanation - Retention time - Retention time is the sum of…
Q: ult of analysis by sieving
A: Duration of agitation is the time for which the sieves are shaked to allow particles to pass through…
Q: which of the folowing(s) is/are true ? 1 split ratio in GC is a ratio of sample passed to column…
A: Column resolution increases with increase in length and decrease in diameter.
Q: I'm working on a pre-lab report for chemistry regarding retention factors. The question asks what is…
A: Retention factors are related to chromatography experiment. Retention factor is the ratio of the…
Q: Which of the following describes a gradient elution process? O stationary phase has varying…
A: We have to describe a gradient elution process. We know that in a gradient elution process, the…
Q: What is the concentration of HI being serial diluted 6 times with a total dilution factor of 106?…
A: Given: Concentration of stock HI solution = 120 mM = 0.120 M (Since 1 M…
Q: 3. Calculate the percent purity of compound X using D and E as recrystallization solvent. % purity =…
A: Given values : Option B is correct answer
Q: Describe the similarities and differences of the Bradford and Biuret method
A: The Biuret method is based on the reaction Cu2+ with functional groups in the protein’s peptide…
Q: How do you weigh hydgroscopic samples?
A: Hydgroscopic samples contain moisture. Therefore it is measured in digital analytical balance.
Q: on of 20 ml. 0.1 MA
A: “Since you have posted a question with multiple sub-parts, we will solve the first three subparts…
Trending now
This is a popular solution!
Step by step
Solved in 3 steps with 2 images
- Standardization of Sodium Thiosulfate Solution Primary Standard used: Potassium Dichromate Formula mass of 1o standard: __________________ % Purity of 1o standard: 99.80% Trials 1 2 3 Weight of K2Cr2O7 (g)Weight of K2Cr2O7 (g) 0.0315 0.0331 0.0380 Final Volume Reading Na2S2O3 (ml) 27.50 27.50 34.90 Initial Volume Reading Na2S2O3 (ml) 1.10 0.00 1.00 Net Volume Na2S2O3 used (ml) Molarity of Na2S2O3show solution plsTrue or false. A primary standard solid must be weighed accurately and diluted to an accurately known volume.
- Which sentence is false about gravimetric analysis? a. It is used for inorganic b. It is used to assay barium c. It is used to assay of d. Relative precision 3% to 4%1. Samples that should not be stored should be prepared/analyzed as soon as possible, especially for measurement…a. hardnessb. Nitritec. Conductivityd. Phenol 2. The following are general sample treatments in pesticide analysis, except…a. Extractionb. Cleaningc. Concentrationd. FilteringA supporting electrolyte is usually added to the analyte solution to minimize solution resistance.minimize solution conductivity.make the analyte less soluble in solution.increase the scan rate.