Often the analyst will compare known quantities of analyte to unknown quantities of the material to be analyzed. This may be done in one of three ways: -use calibration curves; use standard additions; or use internal standards. The method of standard additions would be used when

Q: How do I calculate the first table

A: The reaction mixtures contain different volumes of stock solutions of (NH4)2S2O8,  (NH4)2SO4,…

Q: An impure sample of 0.1002 g benzoic acid underwent purification by recrystallization. A mass of…

A: Given data:Mass of impure sample of benzoic acid that underwent purification = 0.1002 gMass of pure…

Q: The molarity of a solution is determined by four separate titrations or replicates, where the…

A: Given observations are : 1). 0.4120  2). 0.4920  3). 0.3920  4). 0.4888  5). 0.4320  Standard error…

Q: 7) The homogeneity of the chloride level in a water sample from a lake was tested by an analyst.…

A: The homogeneity of the chloride level in a water sample from a lake was tested by an analyst.

Q: From the following data determine the following: Define outlier and then identify the outlier in the…

A: An outlier is the data which has extreme value among the given data. It may create an imbalance in…

Q: Data: (make sure to include appropriate units) Unknown number 1.509g Trial 1 Trial 2 0.51ml 1.15ml…

A: • In a balanced chemical reaction the reactants react and products form in the molar ratio of their…

Q: 28 Report Sheet Separation of the Components of a Mixture D. Determination of Percent Recovery Mass…

A: Hii there, As there are multiple question posted. we are answering first question. If you need…

Q: Based on the analysis of a vinegar solution via titration with 0.1 M NaOH. Results are as follows:…

A: According to the mole concept, in terms of mass, the amount of substance in moles is equal to the…

Q: In a similar experiment, the mass of 3 PB tablets was measured to be 3.1177 g. The tablets were…

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Q: During the standardization of NaOH , an air bubble was present in the tip of the buret when making…

A: Standardisation happens by following V1*S1 = V2 * S2 formula, where V1 = volume of standard…

Q: A group of students titrate a calcium carbonate standard solution repeatedly in five experimental…

A: Average concentration = 80.5 ppm Standard deviation = 0.5 ppm Confidence interval = 95% Number of…

Q: For Questions 20-24 consider the following scenario: A 0.8390 g of an unknown sample containing…

A: Your answer is correct. The explanation is given here. The sample containing chloride ion reacts…

Q: why is it better to generate a calibration plot than to perform a determination using a single…

A: The objective of this question is to understand the importance of generating a calibration plot over…

Q: The scatter plot below shows the density of ethylene glycol solutions vs. the mass % of those…

A: Use the trendline equation to find out the mass percent of ethylene glycol in a solution for a given…

Q: 150 140 130 120 110 100 90 80 70 60 50 40 30 XCIO3 10 -Ce₂(506)s D Đ 10 20 30 40 50 60 70 80 90 100…

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Q: Part II Cu²+, continue Step 11 in Part II Chemical(s) Added (formula, concentration & amount)…

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Q: 1. In this experiment, you will make a set of solutions containing different concentrations of…

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Q: Mass of Sample Volume of KMnO, solution used in titration Equivalents of permanganate used…

A: Titration is a convenient way of determining the concentration of an unknown solution by treating it…

Q: A mixer containing 100 gal of Na,SO, solution (4 Ibs of Na2S04 per gal) is attached to a reservoir…

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Q: M: Table 1: Standardization Data Trial 1 Trial 2 Mass of KHP O145504 0.05ML 04536 12.3 mL Initial…

A: To calculate the Molarity of base, we would first check the mole ratio between base and KHP from the…

Q: After performing Part A of the experiment, a student obtained the following concentrations for…

A: Trial A Trial B Trial C Trial D Trial E Trial F 0.989 0.975 0.976 1.081 1.062 0.949 Unit of…

Q: A student weighed approximately 1.5 g of an unknown solid acid and carefully placed the sample in a…

A: Let the dibasic acid be H2Y It will be neutralized by NaOH in the following way:- H2Y + 2NaOH  =…

Q: Which analytical separation technique is suitable to separate dissolved heavy metals from rivers.…

A: Water consists of many impurities.  But particulate matter and the heavy metals are very poisonous…

Q: A lab group was supposed to make 12 mL of a 29% acid solution by mixing a 20% solution, a 27%…

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Q: Six clean, dry, 18 x 150mm test tubes 1-6 was labeled.  5.00 L of 2.00 x 10-3 M Fe(NO3)3 solution…

A: Please note the typo in your question.  Actually, we have to add, 5.00 mL, NOT 5.00 L of 2.00 x 10-3…