opic: Transmittance and absorbance, lambert-beer law Ketorolac Tromethamine (C15H13NO3 • C4H11NO3) has an absorbance of 0.615 at 318.6 nm and 1 cm optical path in 3.5 µg / mL concentration solutions. A 2.9252 g sample from a tablet is diluted with water to 250 mL. They take 25 mL add 3.0 mL of 0.1 N H2SO4 and dilute to 500 mL. A 10 mL aliquot is taken and diluted to 200 mL. Of the latter solution, the absorbance at 318.6 nm is measured, resulting in 0.523. Calculate the milligrams of Ketorolac Tromethamine for each compressed. Fact: Average weight of 6 tablets equals 1924.5 mg

Q: A student measures the absorbence of an unknown after placing a sample in a cuvette which contained…

A: Given scenario is, A student measures the absorbence of an unknown after placing a sample in a…

Q: This absorbance value (no wavelength where the maximum absorption occurs) corresponds to what %…

A: The maximum absorbance here is 1.85  So A = 1.85

Q: What is the

A:

Q: A researcher is studying cytochrome oxidase, a protein that uses iron to bind diatomic oxygen. She…

A: Reduced mass formula: μ=m1m2m1+m2 for    16O μ1=16×1616+16                     = 8 amu…

Q: A blue product absorbs light at 590 nm (ε590nm = 7,600 M-1 cm-1). Its concentration was too…

A: The actual concentration is 0.459 mM.

Q: a solution has a %T value of 51.6% at 550 nm. What us the absorbance of this solution at this…

A: Absorbance of given solution can be find out as:

Q: Final answer in skeletal form

A: Solution: We know the proton NMR technique is one of the important tool to elucidate structure for…

Q: What does the absorbance of a protein at 280 nm reflect and how does that information help you…

A: In UV-Visible spectroscopy light is passed through the sample and if the compound to be analyzed…

Q: A solution of Cx has a % transmittance of 50.0 %. If Beer's Law is obeyed, what would be the…

A:

Q: What do you think is the property of sulfamethoxazole (antibiotic) which makes it capable of…

A: To determine the property of sulfamethoxazole which makes it capable of absorbing light at a UV…

Q: i. What is the mass number of molecular ion, [CH; CHBr CHBr CH₂ CH]? Show your working. ii. Identify…

A: Please find the attachment.

Q: How many signals would be present in the ¹HNMR? NaCl

A: we have to determine the number of signals for the 1-HNMR of NaCl

Q: Example 11 220 200 180 16o 140 120 PPM 100 80 60 40 20 ppm & Wave Number, cmi 4000 s000 2500 2000…

A: Ir, NMR and mass spectra helps in structure elucidation of an organic compound.

Q: what is beer's law in terms of concentration and absorbance of the absorbing species?

A: The beer’s law explain that the concentration of a solution is directly proportional to the…

Q: How many signals would be present in the ¹HNMR? 04 05 OH

A:

Q: Volume in ml of 2.00 × 10³ M Fe(NO₂) 5 5 5 5 5 Known 1.239 A Test tube # 1 2 3 4 5 2 3 4 5 Test tube…

A:

Q: A 100 mL sample of Cu²+ gave a wave height of 5.02 μA in a polarographic analysis when 0.200 mL of…

A: Volume of unknown Cu2+ sample = 100 mLWave height for the unknown sample = Volume of known Cu2+…

Q: Proteins A give maximum absorbance at 595 nm and its molar absorption is 27,8 M-1 cm-1. If there is…

A:

Q: ) Given the absorbance spectrum shown below, what wavelength of light would you use for nickel(II)…

A: Absorbance is defined by the amount of light absorbed by the sample at a particular wavelength. In…

Q: How many signals would be present in the ¹HNMR? HO NH 2 HO 0 11 0 8 07

A: The number of 1HNMR signal can be identified based on the molecule.

Q: An aqueous solution of a Ni2+ complex with a concentration of 8.61 × 10–5 M was analyzed by a UV-VIS…

A: The relationship between absorbance and transmittance can be expressed as follows: A = -logTA =…

Q: What region of the spectrum is represented here?   if the concentration of the substance measured…

A: A question based on UV-visible spectrum. A spectrum is given based on which the follow-up question…

Q: What is responsible for the small peak at m/z = 17 in the mass spectrum of CH4?

A: High energy electrons are used to break a molecule into fragments in mass spectrometry.

Q: You have the following solutions, A-E. Which solution has the highest absorbance value at 280 nm?…

A: Given Solutions:Solution A: 1.0 mM Gly-SerSolution B: 10 mM Gly-SerSolution C: 1.0 mM…

Q: Indicate the relationship of proportionality that exists between: a) concentration and absorbance…

A: Applying concept of Beers law.

Q: 1. What is the absorbance of a substance that has a transmittance of 68%?

A:

Q: wave length (max) for the following compound (C;Hs)2N Amax = 245 nm %3D 2max = 403 nm %3D max = 365…

A: Woodward gave some rules to theoretically determine the maximum wavelength of a compound. These…

Q: What

A: As, you haven't provided value of ε It is solved using, ε=10,800 M-1.cm-1 We know that  A=εlc

Q: Compound X was dissolved in a 5-mL volumetric flask. A 1.00-mL aliquot of the compound was placed in…

A: It is application of dilution Law and Lambert Beer Law   Here we are required to find the mass of…

Q: The image at right shows some of the energy levels of tyrosine. The lower two levels are each…

A:

Q: 27 Roughly how far does an infrared beam penetrate into t Select one: 1 pm 1 um 1 μΜ 1 nm

A: ATR-Attenuated Total Reflectance. FTIR- Fourier Transform Infrared spectroscopy. ATR-FTIR is used to…

Q: 4. Determine the percent transmittance of ß-carotene, C40H56 that has an absorbance of 0.5 when…

A: The stronger bond will have higher stretching frequency.  whereas the weaker bond will have lower…

Q: what is the lambda of this picture? Choices: 227nm ,263 nm, 234 nm ,273nm

A: Woodward–Fieser rules: The Woodward–Fieser rules are used for the calculation of the wavelength of…

Q: 2. Calculate the absorbance value (A) for a solution that absorbs 89.5% of the light striking it.…

A:

Q: Question attached

A: The absorbance of a sample is to be calculated, Given:

Q: What is the color of a KMnO4 solution? Which solution, 0.50M or 0.25M, will be darker in tone?

A: Note: According to our guidelines we are supposed to answer only one question. Kindly repost other…

Q: Examine the given Beer's law standard curve for an unknown dye measured in a 1.0 cm cuvette.…

A:

Q: Dopamine absorbs light at a λmax of 265 nm. A sample of dopamine (molar mass 153.18 g/mol) was…

A:

Q: Concentration Transmittance (%) Absorbance Solution 1 0.3 0.52 Solution 2 6.3 Solution 3 26.2…

A: to calculate the absorbance, we will take the help of Lambert-beer law: formula: A= -log10(T) A:…

Q: You have a unknown compound you need to identify- its El mass spectrum shows a peak at m/z-187 with…

A: m/z = 187. Odd mass indicates presence of one nitrogen atom.  Ans: The compound probably contains a…

Q: Spectrum 7: LOD C-H CN CEN bend 1s00 4000 3000 2000 HAVENUMBERI - 1000 so TRANSMETTANCEI

A: Following is the appropriate answer of the given question.

Quantum Chemistry

Quantum chemistry deals with the properties of chemical systems and their reactions. The branch of chemistry which is more concerned with quantum chemistry is physical chemistry. It is a more sophisticated field of theoretical physics which is concerned towards the application of physical concepts towards various chemical aspects such as, formation of atoms, chemical structure descriptions, chemical bond strength, hybridization, conjugation etc. Quantum chemistry mainly studies the various states i.e., ground state, excited state, transition states of the individual atoms or molecules taking place during any chemical reaction. The laws of motion explained by various scientists, which are termed as “classical mechanics” were not acceptable in terms of electrons, protons, atoms, light etc. Thus, a new theory named “quantum mechanics” emerged to understand the basic framework of various atomic and subatomic particles.