pH Absorbance 1.0 2.0 3.0 4.0 8.0 10.0 5.0 7.0 1.50 6.0 9.0 0.80 1.10 1.60 0.10 0.50 1.60 1.60

Q: A composite specimen has a dimensions with length (5 cm) and width (3 cm) and height (1 cm). Consist…

A: ⊙ Dimensions:· Length = 5 cm· Width = 3 cm· Height = 1 cm⊙ Volume fraction of Al Vm = 70%100% = 0.7⊙…

Q: 400 450 500 550 600 650 700 wavelength (nm) : Wavclength of maximum absorbance for base form ph…

A:

Q: A solution of tryptophan has an absorbance of 0.64 at 280 nm. Given with of 6.04 x 10-3 M solution…

A: In order to calculate the molar absorptivity co-efficient we first write down the given data:…

Q: What is the absorbance of a 0.00250 M sample in a 1.15 cm cell if ɛɛ is 48.3? O 0.139 0.278 O 1.39…

A:

Q: 16. The expression of Ksp for Ni(OH)2 is: |N²+] • [OH¯]² [Ni*]* · [OH¯] DNi*] · [OH¯ None of the…

A: The solubility product constant Ksp is the equilibrium constant for a solid substance dissolving in…

Q: determine the Kb for A- at 25C . The Ka for HA is 1.49 x 10^-10

A:

Q: Which is correct for polarography? I-polarography is an amperometry method conducted with a dripping…

A: Polarography technique is used to determine the molecules are oxidation or other reduction at…

Q: A solution is made by combining 1.000 ml of 0.1000 M Cd(NO)2 with.000 ml. of 1.000 M HBr and 3.000…

A: The equilibrium constant can be written as the ratio of concentration of products to the…

Q: Ksp (Q) values of lead(II) iodide Trial 1: 1.0 x 10-7             Trial 2: 7.5 x 10-8…

A: Solubility product is defined as the product of molar concentration of ions in a saturated solution…

Q: At 590 nm, crystal violet (a biological stain) has a molar absorptivity (ε) of 8.7×104 M-1cm-1.…

A: Spectrophotometry is a method to measure how much a substance absorbs light by measuring the…

Q: 14. The man spoctrometer tace for agoesim shows peaks at mass pointa 24, 25 and 26 in tio 1:l…

A: Relative atomic mass of Magnesium can be calculated as follows, Ratio of atomic masses 24,25,26…

Q: of students made 5 standard solutions and measured their corresponding absorbance values at group a…

A: As per Beer-Lambert's law,

Q: "[FeSCN2+]eq is calculated using the formula:   [FeSCN2+]eq =  Aeq/Astd? [FeSCN2+]std where Aeq and…

A: [FeSCN2+]eq is calculated using the formula:   [FeSCN2+]eq =  Aeq/Astd [FeSCN2+]std where Aeq and…

Q: Which are true for polarography?   I         Polarography is amperometry conducted with a dropping…

A: Please find the below text answer.   Thank you

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

A:

Q: A student prepared a series of starch standards using the iodine method and measured the absorbance…

A: In optics, absorbance or decadic absorbance is defined by the common logarithm of the ratio of…

Q: 1. A student synthesized 3.214g of Ni(NH3),Cl2 from 4.023g of NiCl2 6H₂O. He dissolved 0.81g of…

A: To find out the concentration of Ni2+ and the mass percent of nickel in the product.

Q: The pKa values of the conjugate acids of 2-aminopyridine (6.71) and 4- aminopyridine (9.11) are as…

A: It is given that 2-amino pyridine conjugate acid has a pKa value of 6.71 and 4-aminopyridine…

Q: The equilibrium constant for the reaction 2CrO,2 + 2H → Cr,0;² + H,O is 4.1x1011. The molar…

A:

Q: 2 H₂O₂ (ar) -> 2H₂0 (1) + 0₂ (g) 2 Juien data 1202], 11•22×102 | 8.04×10-3 5.30 x 10-3 3-49 x103 tı,…

A:

Q: Determine AHnn for the generic reaction below. 3AB2 (9) • C28 ()-2CAB3 (aq) + AB (9)

A: Standard enthalpy of formation for a reaction is equal to the sum of enthalpy of formation of…

Q: A solution of tryptophan has an absorbance of 0.64 at 280 nm. Given with of 6.04 x 103 M solution of…

A: Given information: Absorbance (A) = 0.64 Concentration (c) = 6.04×103 M Length (l) = 0.5 cm

Q: determine the ph: A) a solution of NH3 0.20M (the Rxn is carried out in the aqueous state) B) a…

A:

Q: A water sample has been analyzed for phosphate using UVVS method at 662 nm wavelength. The molar…

A: A numerical problem based on Beer-Lambert law, which is to be accomplished.

Q: An unknown sample of Librium was analyzed using polarography. A 50 mL sample containing the sample…

A: given that , Wave height was 0.40 uA when it contained 50 ml Librium. Now after adding 5 ml , the…

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

A:

Q: ased on the data on the table, show the calibration curve and determine the concentration of the…

A: Given the absorbance of the unknown water sample = 0.121 The calibration curve is drawn by taking…

Q: [FeSCN2+]eq is calculated using the formula:   [FeSCN2+]eq =  Aeq/Astd? [FeSCN2+]std where Aeq and…

A: [FeSCN2+]eq is calculated using the formula:   [FeSCN2+]eq =  Aeq/Astd [FeSCN2+]std where Aeq and…

Q: The absorbance of 1.48 x 105 M methyl red solution, prepared in 0.1 M HCI, was measured using a 1.0…

A:

Q: Describe the individual reactivities of EDTA 2- , EDTA 3- ,  EDTA4-

A:

Q: Most of the pKa values given in this text were determined in water. How would the pKa values of…

A: The strength of a chemical substance acidity is determined by its pKa value. It is actually the…

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: If the dielectric constant of Si is 11.7, and binding energy of Sb donor is 0.039 eV and that of As…

A: Given : the formula of binding energy

Q: Explain (2 max :375 nm) absorbs at a longer wavelength than phitrobenzene (^-max : 260 nm). why…

A: Wavelength maximum value depends on the resonance. Greater is the resonance, higher is the…

Q: The concentration of yeast RNA in an aqueous solution is 12.0 mg/L. The absorbance is found to be…

A: Absorbance is given by the formula A = εbC A = absorbance ε = molar absobptivity b = length of light…

Q: Calculate the expected absorbance value of a 0.12 M aqueous solution of a solution if the extinction…

A:

Q: One common way to determine phosphorus is by mixing 12-molybdophosphate complex with ascorbie acid…

A: A graph based on Beer-Lambert law, which is to be accomplished.

Q: 1. Reaction Rates Cupric Oxide is leached in an acidic solution which results in the formation of…

A: Leaching is a process of extracting a metal from its ore by dissolving it in a certain liquid. The…

Q: A solution of Tryptophan has an absorbance at 280 nm of 0.54 in a 0.5 cm length cuvette. Given the…

A:

Q: A solution is prepared by diluting 2.79 mL of the blue dye stock solution to 25.00 mL. The measured…

A: Given , volume of blue dye stock solution = 2.79 mL. and the final  volume is = 25.00 mL. Blue dye…

Q: tions are mixed. As noted earlier, you could do these calculations befo coming to the laboratory. 2.…

A: Given the concentration of test tube X = 0.080 M Concentration of test tube A = 0.200 M Absorbance…

Q: Two groups in a BIO 120 lab extracted a blue-violet pigment from mayana plant which was to be used…

A: According to Lambert Beer law, the absorbance (A) of a solution is directly proportional to…

Q: Write Ksp for Ca3 (PO4)2 salt ... a. [Ca2+]3 [PO4]² b. [Ca2+] [PO43-1² c. [Ca]³ [PO43-]? d. [Ca2+]²…

A: The compound given is Ca3(PO4)2.

Q: 10 Wavelength, à. (nm) ɛ (Red, µ.M¯lcm¬ ɛ(Yellow, µ.Mr'cm=l) Absorbance 500 0.0369 0.000549 0.405…

A: The law of Beer-Lambert relates the magnitude of the light to the properties of the medium by which…

Q: Consider the Beer's Law plot shown below: When the absorbance is 0.55, what is the concentration of…

A: The calibration curve given is, Given absorbance = 0.55

Q: A solution of Tryptophan has an absorbance at 280 nm of 0.54 in a 0.5 cm length cuvette. Given the…

A: Absorbance of compound is calculated by A = € ×C×l

Q: The values of ɛ at 330nm for ArOH and Aro- forms of 2-naphthol are 1587.5M-1cm-1 and 205C M-1 cm-1.…

A:

Q: Calculate the expected absorbance value of a 0.39 M aqueous solution of a solution if the extinction…

A: