Your UANet ID: Chemical Thinking Apply What You Know Creatine supplements are us
ID: 65159 • Letter: Y
Question
Your UANet ID: Chemical Thinking Apply What You Know Creatine supplements are used by athletes, bodybuilders, and others who wish to gain muscle mass. Creatinine is the metabolic product of creatine. When testing for creatine levels in athletes, chemists look for creatinine in urine samples. Uric acid is also a component of urine and absorption spectroscopy can be used to identify the presence of both simultaneously Abs 1. The absorption spectra for creatinine and uric acid00 are shown in the image. What types of EM radiation are absorbed by these substances? a. Uric acid b. Creatinine 2.00 1.00 2. Estimate the energy, in ki/mol, of the radiation that can be used to differentiate these two substances. 0.00 250 350 400 Wavelength (nm) Research has shown that trace amounts of dangerous metal ions have been found in creatine supplement powder. The photoelectron spectrum of one of those metal ions is shown. M2+ identify the ion and justify your reasoning. uation Energy The common negatively charged ion of Arsenic is another substance that was detected in creatine powder. arsenic has proven to be the most toxic form of the element. 4. What would you predict to be the most stable form of the negative ion of arsenic? Sketch the PE spectrum of this ion.Explanation / Answer
1.) UV absorbance (Ultraviolet–visible spectroscopy ).
2) 1 kj/mol and 320 nm.
3)M2+ ion this is metal ion complexes and at high content is found in case of renal failure .also ionization energy is high .
4.)
5.) C4H9N3O2 formula of creatine
6)NH2 and COOH is functional group
7) tetrahedral electron pair geometry and trigonal pyramidal is molecular geometry .
8)bond angle is less than 109.5.
9) The dipole moment of a molecule is determined by the magnitudes of the partial charges and by the distances between them. To quantitate dipole moments, charges are expressed in esu's and distances in centimeters. The dipole moment of an electron and a proton separated by 1 Å equals:
(4.8 x 10-10 esu) (10-8cm) = 4.8 x 10-18 esu cm
= 4.8 Debye
10)
lewis structure of C5H2NO4
11)Ans: Infrared light imposed on a molecule will not create electronic transitions but it does contain enough energy to interact with a molecule causing vibrational and rotational changes.The symmetrical stretch of CO2 is inactive in the IR because this vibration produces no change in the dipole moment of the molecule. In order to be IR active, a vibration must cause a change in the dipole moment of the molecule.linear molecules, carbon monoxide and iodine chloride absorb IR radiation, while hydrogen, nitrogen, and chlorine do not. In general, the larger the dipole change, the stronger the intensity of the band in an IR spectrum.
Related Questions
drjack9650@gmail.com
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.