If chlorophyll had absorption peaks at 550 nm and 650 nm rather than 425 nm and 660 nm what colour would the leaf appear to your eyes? Yellow Blue/Purple Red/Orange
Q: Classify each compound as a primary, secondary, or tertiary amine.. 1. 2. 3. CH3CH₂CH₂CH₂NH2 4.…
A: The classification of amine is done on the basis of the number of alkyl groups attached to the…
Q: 0.85 g of hydrogen chloride (HCI) is dissolved in water to make 7.5 L of solution. What is the pH of…
A:
Q: The Ka for HCN is 4.9 × 10-10. What is the value of Kb for CN-?
A:
Q: For the reaction at 375K" equalibrium constant Determine value of KC 2 H20 (9) 2H₂ (9) + 0₂ (9)…
A:
Q: What does Neutral mean in everyday language to everyday people? Use examples to help describe your…
A:
Q: Which one of the following statements is incorrect? (a) According to the Gibbs phase rule, four…
A:
Q: < Question 7 of 18 The electron microscope uses the wave property of electrons to observe very small…
A: Given -> Kinetic energy= E = 4.50 × 10-19 Joule Mass of an electron= 9.11×10-28g = 9.11 ×…
Q: Which of the following is a polyprotic base a. NaOH b. NaHCO3 c. Na2CO3 d. Ba(OH)2
A: Given bases: a. NaOH b. NaHCO3 c. Na2CO3 d. Ba(OH)2 We have to find the substance that is a…
Q: What is the concentration of X2− in a 0.150 M solution of the diprotic acid H2X? For H2X,…
A: The dissociation equations of H2X(aq) are: H2X(aq) ⇌ HX-(aq) + H+(aq) ; Ka1 = 2.9x10−6 HX-(aq) ⇌…
Q: Consider these compounds: A. PbSO4 B. AgI C. Ag₂SO3 D. Fe(OH)₂ Complete the following statements by…
A: Answer: All 5 compounds mentioned in the problem statement are sparingly soluble compounds and we…
Q: Determine the solubility product constant (Ksp) of borax, a slightly soluble sodium salt, in water…
A: Given: The equilibrium expression for the process is: Na2B4O5(OH)4 10H2O (s) ⇌ 2 Na+ (aq) +…
Q: What is the amount concentration of 1.20 mol of potassium hydroxide in 800 ml of solution a. 1.5…
A: Concentration of the solution is determine by operating ratio of moles of compound to the volume of…
Q: Which occurs when propane undergoes a chemical reaction with oxygen? A. chemical bonds are broken.…
A:
Q: Give a clear handwritten answer with explanation ....please give answer all sub parts please
A: When HCl or HI is allowed to react with an alkene, the alkene will attack the H. After all, the…
Q: P19.4 A simulated infrared absorption spectrum of a gas- phase organic compound is shown in the…
A:
Q: Indicare If the rate of the second order reaction will increase, decrease, or unbffected: 1.…
A: We need to consider the rate law and Arrhenius equation to understand the dependence of rate on…
Q: The pH scale measures the a. Concentration of OH- ions b. Concentration of H3O+(aq) ions c.…
A: pH scale measures the concentration of H+ ion and here H3O+ is the source of H+ ion.
Q: Now, do the same calculation, but here, starting with 7.00 g of SO2 Cl2 (which gave an initial…
A: Answer: Initially in the system two gases SO2Cl2 and Cl2 are present and we have to find out the…
Q: True or False The mole ratio is the ratio of the chemical amounts of reactants and products in a…
A: Molar ratio are used as an conversion factor between two species involved in a chemical reaction in…
Q: Structures of Molecular Compounds Formula H₂O SF₂ NI3 Report Table B.3: Molecular Compound…
A:
Q: a) Sal b) Sn2 CI H₂oY OH EN MON CN CN
A: These are SN1 and SN2 reaction where formation of carbocation and backside attack of nucleophile…
Q: A 9.73 g sample of an aqueous solution of hydrochloric acid contains an unknown amount of the acid.…
A: "Since you have asked multiple question, we will solve the first question for you. If you want any…
Q: Complete the balanced neutralization equation for the reaction below. Be sure to include the proper…
A: Answer: When acid and base solution are mixed into each-other then such reaction are called as…
Q: How many grams of each substance are required to make the indicated solution? NaCl in 500 g of a…
A:
Q: Potassium reacts with water to release hydrogen gas according to the following equation 2K(s) +…
A: Reaction: 2K(s) + 2H2O (l) → 2KOH(aq) + H2(g) According to the reaction stoichiometry, to produce…
Q: Write the balanced COMPLETE ionic equation for the reaction when aluminum nitrate and sodium…
A: Solubility rules of hydroxides and nitrates would be used to determine the phase of product which…
Q: Data: Room Temperature of Borax = 23˚C Kₛₚ of borax at room temperature trials First: 21 mL of HCl…
A: The balanced equation for the dissociation of borax, Na2B4O5OH4.8H2Os is: Na2B4O5OH4.8H2Os⇌2Na+aq +…
Q: Consider the reaction: OH Gd CH H₂C a. M H3C What kind of reaction is being performed here? b. What…
A: Concept based on the enzyme catalysis. Conversion of second alcohol to its oxidised product ketone…
Q: Which of the following molecules is correctly paired with the glycolytic or gluconeogenic enzyme…
A: Gluconeogenesis is the formation of glucose from the non-carbohydrates precursors like amino acids,…
Q: Why is λ max significant? The instrument response is highest at that wavelength. The value…
A: λ max is significant in UV- Vis spectroscopy due to following reasons.
Q: Write an equation for the hydrolysis of glyceryl triethanoate and upload a photo of your…
A:
Q: What happens when anisole reacts with HNO3 and H2SO4? What about when those are followed by Br2 and…
A: -OCH3 is ortho para directing group -NO2 is meta directing group
Q: The following reactions all have K > 1. 1) C6H5COO (aq) + HC₂H₂O4 (aq) = C6H5COOH (aq) + C₂H₂O4 (aq)…
A: Bronsted lowery acid = proton donar Bronsted lowery base = proton acceptor
Q: The pOH of an aqueous solution at 25°C was found to be 13.00. The pH of this solution is The…
A:
Q: P20.22 The total energy eigenvalues for the hydrogen atom are given by En = -e²/(8πɛªn²), n = 1, 2,…
A: When an operator operates on an eigen function, it produces a value known as an eigen value.
Q: A constant volume calorimeter (bomb calorimeter) was calibrated by performing in it a reaction in…
A:
Q: An NMR spectrum of an unknown mixture of CH₂Cl₂ and CHCl3 shows two peaks, at 5.30 ppm for CH₂Cl2,…
A: In 1H NMR spectra, the integration of a peak is defined by the area covered by that peak. Now the…
Q: 2. Which of the following statements about a phosphate solution is NOT true? For H3PO4, pKal = 2.16,…
A: #2: H3PO4 is a triprotic with pKa1 = 2.16, pKa2 = 7.21, and pKa3 = 12.32 Hence H3PO4 gives 3…
Q: molecules. Calculate the anount of 1,3-diaxial strain (use the energy table) in each. Label the more…
A: Given trans-1-chloro-3-methylcyclohexane
Q: Arrange the following substances in order of increasing stability of conjugate base. 1. H₂Se II. H₂S…
A: Given substances : I. H2Se II. H2S III. H2Te
Q: What is the heat capacity at constant colume n mole monatomic gas a. 3/2nH b. 5/2nR c. 7/2nR…
A:
Q: Recrystallized Benzoic acid compare to literature values • Format the table and the descriptive…
A: Infrared spectroscopy deals with the study of interaction of compounds/ organic molecules with…
Q: 5 Specify which of the following salts will undergo hydrolysis: KF, NaNO3, NH4NO2, MgSO4, KCN,…
A:
Q: A quantity of gas in a piston cylinder has a volume of 0.466 m3 and a pressure of 200 Pa. The piston…
A: Initial Volume = V1 = 0.466 m3 Initial Pressure = P1 = 200Pa Final Volume , V2 = 0.245 m3…
Q: Electrons are not shared. Atoms have gained or lost valence electrons such that they 3 have a full…
A: There are different types of bonds - 1- ionic bond 2- covalent bond 3- hydrogen bond 4- metallic…
Q: id-base eid. solution, CI. said to the of the se n will e base kaline. the pH each Part A Classify…
A:
Q: Look up the structures of the following carbohydrates: D-Fructose, Sucrose and Maltose. Write down…
A: Specific optical rotation is the angle through which the plane polarized is rotated by 1 g substance…
Q: 6. 7. 8. 9. HOOCCH₂C(OH)(COOH)CH₂COOH 10. H₂C H₂C CH₂ CH3 CH-C-CH3 CH3 CH CH3-CH-CH3 HC=CCH₂CH₂CNH2…
A:
Q: How many moles of calcium atoms do you have if you have 4.35 × 1021 atoms of calcium. (The mass of…
A: Given, Number of atoms of Calcium = 4.35 × 1021 atoms moles of Calcium = ? Note: 6.022 × 1023 Ca…
Q: Which of the following statements are correct? 1. The lower the charge density of the conjugate…
A: Which of the following statements are correct? I. The lower the charge density of the conjugate…
Please answer the question correctly is all I want and explain why its thats answer for the final and please answer as quickly as possible, thanks!
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
- What is the difference between an absorption spectrum and a standard curve?A solution containing two different fluorescent compounds, Ben and Jerry, were analyzed for their individual concentrations in the mixture. Standards of pure Ben and pure Jerry were prepared at a concentration of 500.0 mM and were run in a UV-Vis Spectrophotometer to determine their absorption properties. Absorbance Wavelength Compound Ben 500 mM Compound Jerry 500 mM 400 nm 0.137 0.136 450 nm 0.312 0.113 500 nm 0.154 0.078 550 nm 0.076 0.079 600 nm 0.227 0.148 650 nm 0.230 0.230 700 nm 0.151 0.357 750 nm 0.157 0.246 800 nm 0.154 0.154 A standard curve of the standards was also prepared to help determine the concentration of each component in the solution. The solution produced an absorbance reading of 0.486 at the λmax of Ben, and 0.463 at the λmax of Jerry. STD CURVE BEN Λmax Ben Λmax Jerry STD CURVE JERRY Λmax Ben Λmax Jerry CONC (mM) ABS ABS CONC (mM)…A solution containing two different fluorescent compounds, Ben and Jerry, were analyzed for their individual concentrations in the mixture. Standards of pure Ben and pure Jerry were prepared at a concentration of 500.0 mM and were run in a UV-Vis Spectrophotometer to determine their absorption properties. Absorbance Wavelength Compound Ben 500 mM Compound Jerry 500 mM 400 nm 0.137 0.136 450 nm 0.312 0.113 500 nm 0.154 0.078 550 nm 0.076 0.079 600 nm 0.227 0.148 650 nm 0.230 0.230 700 nm 0.151 0.357 750 nm 0.157 0.246 800 nm 0.154 0.154 A standard curve of the standards was also prepared to help determine the concentration of each component in the solution. The solution produced an absorbance reading of 0.486 at the λmax of Ben, and 0.463 at the λmax of Jerry. STD CURVE BEN Λmax Ben Λmax Jerry STD CURVE JERRY Λmax Ben Λmax Jerry CONC (mM) ABS ABS CONC (mM)…
- A solution containing two different fluorescent compounds, Ben and Jerry, were analyzed for their individual concentrations in the mixture. Standards of pure Ben and pure Jerry were prepared at a concentration of 500.0 mM and were run in a UV-Vis Spectrophotometer to determine their absorption properties. Absorbance Wavelength Compound Ben 500 mM Compound Jerry 500 mM 400 nm 0.137 0.136 450 nm 0.312 0.113 500 nm 0.154 0.078 550 nm 0.076 0.079 600 nm 0.227 0.148 650 nm 0.230 0.230 700 nm 0.151 0.357 750 nm 0.157 0.246 800 nm 0.154 0.154 A standard curve of the standards was also prepared to help determine the concentration of each component in the solution. The solution produced an absorbance reading of 0.486 at the λmax of Ben, and 0.463 at the λmax of Jerry. STD CURVE BEN Λmax Ben Λmax Jerry STD CURVE JERRY Λmax Ben Λmax Jerry CONC (mM) ABS ABS CONC (mM)…A new water-soluble anti-diabetic drug with a molecular weight of 210.2 g/mol has an absorption maximum at 278 nm and a molar absorptivity (ε) of 6.15 x 103 M-1cm-1. One tablet of the drug was crushed and quantitatively transferred to a 100 mL volumetric flask and the flask was filled to the mark with deionized water. This solution had an absorbance of 0.770 at 278 nm in 1.00-cm cell. A blank was prepared by treating a tablet with identical composition but without the anti-diabetic drug in an identical manner. The absorbance of this blank solution was 0.052 at 278 nm in a 1.00-cm cell. (Show your work) a. Calculate the concentration of the final solution from Beer’s Law. b. Calculate the mass in mg of the anti-diabetic drug in the tablet.Spectral Analysis IR Analysis Interpret the IR spectrum. Transmitance 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 3500 3000 Infrared Spectrum 2500 Wavenumbers (cm-1) 2000 Cha 1500 1000
- Beta-carotene dye has a strong absorptions in the visible region between 400 and 500 nm, the maximum absorption peak is located at 470 nm. Predict the colour of the dye and explain your answer by providing an appropriate colour wheel chart.(d) The Beer-Lambert law states that the absorbance (A) of light by a solution in a cuvette is given by: 10 A = In == ECL where lo is the incident light intensity, is the transmitted light intensity, e is the molar absorptivity, c is the concentration of the solution, and L is the path length of the cuvette. (1) Light with a wavelength of 800 nm is passed through a cuvette containing a solution of Coumarin dye. After passing through the cuvette, the light intensity was reduced to 10% of its initial value. What is the absorbance of the solution of Coumarin dye? (ii) The concentration of the Coumarin dye is 0.004 mol dm3, and the cuvette has a path length of 1 cm. What is the molar absorptivity of Coumarin dye at 800 nm, in units of m² mot¹? (IT) The molar absorptivity of Coumarin dye at 400 nm is three times larger than at 800 nm. How would the absorbance of the solution change, when measured with 400 nm light rather than 800 nm light?A student prepared several solutions of Molecule Bright, each at a different concentration. The absorbance of each solution was measured at 405 nm with a path length of 0.730 cm. The student then plotted the absorbance of each sample vs. its concentration (in mM), and found a best-fit line of y = 3.726x + 0.828. Calculate the molar absorptivity of the Molecule Bright (in M-1 cm-1).
- Why is it most accurate to measure absorbances in the range A = 0.3 to 2?Suppose you are analyzing mercury ions (Hg2+) in drinking water samples with atomic absorption spectroscopy. If the Hg2+ signal varies by a matrix of sample, which of the following should be used as a standard for calibration? Either cations or anions can be used if they are different from Hg2+, 0 H20 Any anions can be used if they are different from Hg2+ Any cations can be used if they are different from Hg?". Hg2+Absorbance at 453 nm 8393939 7 fl. oz./20 ml Beer-Lambert's Law (Spectrophotometry) #1 Fe (aq) + KSCN(s) FESCN "(aq) + K" (aq) 3+ To determine the moles of Fe (aq) in a 100. mL sample of an unknown solution, excess KSCN(s) is added to convert all the Fe (aq) into the dark red species FeSCN"(aq), as represented by the equation above. The absorbance of FESCN"(aq) at different concentrations is shown in the graph below. 2+ 0.50 目0.40 0.30 0.20 01 0. 0. 5 x 10-5 10 x 10-5 Concentration of FESCN2+ (M) If the absorbance of the mixture is 0.20 at 453 nm, haw many moles of Fe (aq) were present in the 100. mL sample? (Assume that any volume change due to adding the KSCN(s) Iis negligible.) 3+, 4x10-4 mol 3 x 104 mol (B) 4x 10-6 mol 3x 10-6 mol