To calculate the unknown concentration of a chemical in a solid sample, 4 different calibration curves were plot using 4 different methods. Which of the following method is considered as acceptable?

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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: Which of the following would result in an increase in the calculated ngas in the Chem 16.1 Experin…

A: The correct option is as follows:

Q: The literature value for the Ksp of Ca(OH)2 is 5.5e-6 at 25 oC. How does this compare with the value…

A: The Ksp value of calcium hydroxide is 5.5×10-6 and given that value obtained from the experiment is…

Q: 300.0 mg conc 0.100 M expID: HM1-001 scale 1) EDCI, HOBT hydrate DIPEA O`HN NH H3CO HN DCM:DMF (1:2)…

A: Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

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A: Mean of the five sample given (x-)= (98.71+98.59+ 98.62+98.44+98.58)/5=98.588% let xi = % of i th…

Q: Table 1. Data on EDTA Standardization Weight of CaCO3 (g): 0.2003g Trial Volume of EDTA (mL)…

A: Each of Ca2+ is neutralised with 1 mol of EDTA. Also, No of moles = Mass / Molar mass

Q: A 0.1475-M solution of Ba(OH)2 was used to titrate the acetic acid (60.05 g/mol) in a dilute aqueous…

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A: You have asked about part (B) only, I have to answer part (B),so, let's start. Given, Balanced…

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A: The Beer-Lambert law states that the amount of light absorbed by any substance dissolved in a…

Q: 7.7 Separation of Two Solutes Having Linear Equilibrium Two solutes have a linear equilibrium with…

A: The effective velocity of solute: u=vε+1-εK The superficial velocity is given by: v=ratearea=rAπr2

Q: 2. Determining the Acid Content of Vinegar Trials A В Volume of Vinegar used (ml) 25.00 diluted to…

A:

Q: A compound X is to be determined by UV/Visible spectrophotometry. A calibration curve is constructed…

A: The light absorbed by the solution is known as absorbance.

Q: Which of the following would result in an increase in the calculated ngas in the Chemistry…

A:

Q: A quality control (QC) sample was run in replicates of six to produce the following concentrations…

A:

Q: An analyst determines the Cl^- content of rain water with ion chromatography. The data for the…

A: There is a high probability that an analytical instrument will produce a signal noise whenever a…

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A: A question based on tools in analytical chemistry that is to be accomplished.

Q: Part I. Cause and Effect: lIdentify the effect of the condition on the indicated parameter. Write…

A: Higher concentration solution will have more mass of solution. Hence low specific heat. With the use…

Q: 1) To estimate the accuracy and precision of the method of determination of glucose in a blo sample,…

A: Accuracy can be defined as how  close the reading is to actual reading . It can  be measured by…

Q: e used to determine whether the concentrations of haloacetates in the treated water demonstrate…

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Q: Spectrophotometric Determination of a Metal A 100.00 mL of exactly 250.0 mg/L Cu2+ stock solution…

A: To answer why NH3 is added to each standard solution before diluting with distilled water.

Q: Which of the following would result in an increase in the calculated ngas 10, assuming the rest of…

A: Number of moles is defined as the mass of the compound divided by the molar mass of the compound.

Q: To a 0.5 g sample of impure NaCl are added 0.784 g of pure AgNO3 (MW = 169.88) crystal. This is in…

A: A precipitation reaction involves the formation of a solid, insoluble substance. In Stoichiometry,…

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A: Ascorbic acid in Vitamin C reacts with DCIP in 1:1 fashion.

Q: A 0.937-g sample containing Ca2+ was dissolved to produce a 500-mL stock solution. A 50-mL aliquot…

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Q: Q) Calculate the “Chlorine Demand of Water”, if “addition of (i.e. Chlorine added)” 200 kg/d of…

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Q: A brewed coffee sample was subjected to solvent extraction. The cup of coffee measuring 200.0 mL was…

A: The correct option is option (2) 27.1 %

Q: 13.43 Octane (C3H18) enters an engine and burns with air to give products with the dry molar…

A:

Q: Which of the following will result in an increase in the calculated Ksp of Ca(OH)2? Receiving flask…

A: Let's check all the given statements.

Q: Two different methods were investigated for Cu2+ detection in water sample and both methods…

A: To choose the correct option:

Q: f an instrument gives a response of 1240 for a standard containing 8 ppm of a substance, how much if…

A: The given question can be solved by using the unitary method. The assumption that we are taking is-…

Q: A 5.12-g pesticide sample was decomposed and then dilute to 200-mL to determine its Cu2* contents.…

A: Absorbance: It is a measure of the quantity of light that is absorbed by the sample. It is also…

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Q: Explain how it is that SPE cartridges & disks allow analysts to more efficiently pre- concentrate…

A: Interpretation-  To explain that how SPE cartridges and disks allow analysts to more efficiently…

Q: (5) If 200 g of polymer A, 300 g of polymer B, 500 g polymer C, and 100 g of polymer D are mixed,…

A: Molecular mass of polymer is a most  important  parameter and directly related to the physical…

Q: < E session.masteringchemistry.com MasteringChemistry: HW 8 <HW 8 Applications for Dilution…

A: From the given data in the question, sayThe final concentration of the diluted solution  = cVolume…

Q: The test tube used in the determination of the ΔHrxn for nitric acid was still wet with water. […

A: 1) The test tube used in the determination of the ΔHrxn for nitric acid was still wet with water. […

Q: You are provided with a stock standard with a concentration of 100 mg/L, and a solution of unknown…

A: A question based on absorption that is to be accomplished.

Q: 3.) The following Beer's Law calibration plot was collected at 391.9 nm using the five mixtures…

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Q: statement is correct?

A: In Analytical Chemistry, an internal standard is defined as a chemical substance that is added to…

Q: In the Analytical Chemistry laboratory, one of the B.Sc student Ms. Fatma wanted to analyze the…

A: (i) Given:  Dilution factor is 10. The volume of solution B(diluted solution) is 250 mL.…

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: der the peaks for pentafluorobenzene and benzene in the gas chromatogram shown here.  The elution…

A: Given data: Elution time for unretained solute = 1.06 min Length of column = 30 m Diameter of column…

Q: 2. Determining the Acid Content of Vinegar Trials A В C Volume of Vinegar used (ml) 25.00 diluted to…

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Q: A fly ash (ƿ = 1.8 g mL-1) aerosol consists of particles averaging 13 µm in diameter and with a…

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Q: What is the literature value of the Ksp of Ca(OH)2 ?  How far off from this value was your value(s)…

A: Ksp is defined as the solubility product and the general expression for solubility product is shown…

Q: The homogeneity of the chloride level in a water sample from a lake was tested by analyzing portions…

A: Solution -

Q: Standard Solutions for FENCS2* Ion Beer-Lambert Plot mL of 2.00 x 101 M Fe(NO,)3 in 0.10 M HNO, mL…

A: