ou obtained the following raw data when setting up a Biuret standard curve:   BSA (mg/ml) Absorbancy 540nm

Q: The calibration output from a breathalyzer test was plotted. If a sample was tested to have an…

A: The sample tested has absorbance 0.200 and the legal limit was 0.10 %. The percent ethanol level…

Q: A solution of a specific vitamin has a åmax of 271 nm and a concentration of 2.73 × 10-7M. The…

A: Given that : Concentration of the solution (C) = 2.73 x 10-7 M Absorbance of the solution (A) =…

Q: Calculate the [FeSCN2+] using volumes of stock solutions. Presume that all the SCN– ions react.…

A: The data given is,

Q: You have a solution with a concentration of 0.80 mM, and you put it in a cuvette with a 1.0cm…

A:

Q: tion 13 of 24 > The standard curve was made by spectrophotographic analysis of equilibrated…

A: Given that: Absorbance = 0.179 Slope-intercept equation = y=4536.6x + 0.0392 Concentration of Fe3+ =…

Q: Find (M) for [FeSCN^2+] using the following info: 0.200 M (Iron (III) nitrate) Fe(NO3)3 (mL) = 17.98…

A: The volume of 0.200 M Fe(NO3)3 solution is 17.98 mL. The volume of 0.200 M KSCN solution is 1.97 mL.

Q: A stock solution contains 0.039 mM glucose. To 293 uL of this stock solution was added: 643 uL…

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: Unknown Sample Calculations Sample y (absorbance) = m x (concentration) + b 1 0.200 = 0.1107…

A: A generalized formula helpful in calculating absorbance for any specific solution with known…

Q: Equilibrium Solutions Volume (ml) Trial # 2.00 x 10-3 M Fe(NO3)3 (ml) in 5.00 M HNO3 2.00 x…

A: Molarity is a way of expressing concentration in terms of moles of substance present per liter of…

Q: entration of solution 1 is 0.001 M. The consequent solutions were prepared by two-fold serial…

A: The purpose of the experiment is to determine the partition coefficient (log P) of p-toluoyl…

Q: The following absorbance values for four solutions with known MnO4 concentrations were measured…

A: A spectrophotometer is a device that is used to measure the intensity of the light that passes…

Q: The absorption coefficient of O2 in seawater at 0°C is 1.7 mmol/L.What is the concentration of O2 if…

A: Given information,        The absorption coefficient of O2 in seawater at 0°C is 1.7 mmol/L.

Q: The standard curve was made by spectrophotographic analysis of equilibrated iron(III) thiocyanate…

A: Given the linear regression equation for the analysis of the standard solution is Y =…

Q: A 5.0 mL solution containing 3.36 pm Fe(Ill) ions is diluted to 50.0 mL by first treating with an…

A: We must ascertain the concentration of the FeSCN2+ complex generated as a result of the interaction…

Q: absorbancy of 0.310 was obtained. Set up a standard curve, excluding outliers (experimental and…

A:

Q: Estimate the Ka of a weak acid from the data given below. One gram quantities of the acid were…

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Q: A solution of a specific vitamin has a Amax of 261 nm and a concentration of 2.38 x 107 M. The…

A: The objective of the question is to determine the molar absorptivity.It is given that,The…

Q: for density is M/\ Calculate the molarity of solution prepared by weighing 6.34 g of NaOH using a…

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Q: A student used 500mg of tabletop sweetener to make a total of 5ml of solution with biuret reagent.…

A: The student prepared a solution containing 500 mg of tabletop sweetener in a total volume of 5 mL.…

Q: The nitrate in water was analyzed  using a spectrophotometric method. The absorbances of the…

A: Given data:

Q: The concentration of Ba(1O3)2 in H2O at 35°C (Ksp = 3.00 x 10-9) Ba(103)2 (s) %3D Ba2+ + 2103 O 5.23…

A:

Q: Suppose you did the titration three times and got the following data for the concentration of NaOH:…

A: The question is based on the concepts of analytical chemistry. we have to determine the relative…

Q: Table 2   Absorbance vs CoCl2 concentration   Test Tube Number Cobalt Chloride Concentration…

A:

Q: Water from Jordan Lake was analyzed for its Fe³+ content. A 20.0-mL sample of lake water was…

A: First, we have to calculate the value of the molar absorptivity constant, ε using the concentration…

Q: The concentration of nitrite (NO₂) in the unknown sample was determined by a direct (ordinary)…

A:

Q: Tooth enamel is composed of the mineral hydroxyapatite, Ca5(PO4)3OH which has a Ksp of 6.8 x 10-37.…

A: Step 1: Step 2: Step 3: Step 4:

Q: 10. For the following absorbance data, determine the concentration range that corresponds to the…

A: A question based on tools in analytical chemistry. A set of data is given that is to be converted…

Q: Ben ran through the experiment and found the best-fit line listed below for his standard calibration…

A: Given , absorbance of solution = 0.432  Volume of 0.002 M iron(III) nitrate = 5.00 mL Volume of…

Q: The absorbance value for the Standard was 0.625 and [FeSCN^ 2+ ] std is 2.00E 4M Calculate the…

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Q: if its absorbance is 0.900, find the molar absorptivity of a solution containing 3.0 x 10-3 g/L…

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Q: Average absorbance, Molarity of Fe(NO₂)), 0.2M Volume of Fe(NO₂)) = 5.00mL Moles of FeMolarityx…

A: The balanced equation for the equilibrium reaction is: Fe3+(aq) + SCN-(aq) ⇌ Fe(SCN)2+(aq) ; K = ??…

Q: Calculate the equilibrium concentration of FeSCN^2 Please explain.

A: Given: Beaker [FeSCN+2] Absorbance 1. 1.6*10-4 M 0.582 2. 1.2*10-4 M 0.448 3. 0.8*10-4 M…

Q: Based on calibration curve, extinction coefficient for Red 40 Absorbance of Red 40 in Gatorade at…

A: "Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: .0 mL of an unknown FeCl3 solution is diluted to a total volume of 230.0 mL. The diluted  FeCl3…

A: Given that: Initial volume of FeCl3 = 45.0 mLFinal volume of FeCl3 = 230.0 mLAbsorbance = 0.223Molar…

Q: If the absorbance for the solution was 0.698, calculate the equilibrium concentration of iron(III)…

A: It is  based on the Lambert  Beer Law, Here we are required to find the equilibrium concentration of…

Q: Given this data, if a CV solution has an absorbance of 1.125, what is [CV]? [CV] / M              A…

A: The problem is asking us to find the concentration of CV in a solution given its absorbance. We are…

Q: The concentration of Ba(103)2 in H2O at 35°C (Ksp = 3.00 x 10- %3D Ba(103)2 (s) - Ba²* + 2103 5.23 x…

A: Ksp = 3.00 × 10-9  Concentration of Ba (IO3)2 = ?

Q: Tonic water (20.0 mL) was added into each of two volumetric flasks (100 mL). The first flask was…

A:

Q: What is limit of detection? What is standard deviation?

A: To determine: limit of detection and standard deviation

Q: The dota shown below is calibration data obtained from the determination of a pesticide in soil…

A: 1.  Concentration = 3.6

Q: Concentration=2.5 X 10^3  μM OD400nm=0.859 1cm cuvette is used what is the extinction coefficient…

A: The extinction coefficient can be calculated as:

Q: The concentration of Ba(103)2 in H2O at 30°C (Ksp = 1.25 x 10-) Ba(10s)2 (s) Ba" + 2103 7.32 x 10-8…

A: Given, Ksp of Ba(IO3)2= 1.25×10-9

Q: Chosen wavelength : 400 nm EDTA Volume (mL) Absorbance O mL 0.445 1 mL 0.439 2 ml 0.434 3 ml 0.428 4…

A: Answer

Q: You obtained the following raw data when setting up a Biuret standard curve: BSA (mg/ml) 0 1 2 3 4 5…

A:

Q: Chemistry

A: Given: C=20mg/L;M=158g/mol;ε=2100M−1cm−1Step 1: Write the Beer's Law equation.A=εbCA it is the…