Interpretation:
The age of document needs to be determined if currently living organism decay at the rate of 15.3 disintegration/ min per gram of carbon and decay rate of
Concept introduction:
The nuclear reactions are a type of chemical processes which lead to the formation of some new nuclei with the emission of certain particles. Usually alpha or beta particles, or gamma rays are emitted as a side product with some new daughter nuclei. The nuclei which shows spontaneous decay with time are called as radioactive nuclei. The radioactive decay follows the first order kinetic and the half-life is inversely proportional to the decay constant of the radioactive decay.
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LCPO CHEMISTRY W/MODIFIED MASTERING
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- In the mevalonate pathway, three acetyl-CoA are combined to give a C5 product, IPP. A. Write out a 5-step general acid/general base mechanism to explain how HMG-CoA is formed from 3 acetyl-CoA (Note: we are leaving out some details. The enzyme HMG-CoA actually uses its Cys residues to accept acetyl groups from 2 acetyl-CoA, making new thioesters and liberating CoASH) B. Two NADPH and two H+ are required to form mevalonic acid from HMG-CoA. Circle the H atoms that came from NADPH, and put a square around any H atoms that came from H+ C. Three ATP are used to convert mevalonic acid to IPP. Explain the role of each ATP moleculearrow_forward11B.3 Calculate the rotational constant for 32S 19F6 for which the S – F bond length is 158 pm. Before solving the problem please also give a brief explanation of the concept or associated equation(s) and variables.arrow_forward11A.3 An aqueous solution of triphosphate derivative of molar mass 502 g/mole wasprepared by dissolving 17.2 mg in enough water to make 500 cm3 of solution and a samplewas transferred to a cell of length 1.00 cm. The absorbance was measured as 1.011. Calculatethe molar absorption coefficient, and the transmittance, expressed as a percentage, for asolution of twice the concentration. Before solving the problem please also give a brief explanation of the concept or associated equation(s) and variables.arrow_forward
- Problem 11-57 Order each of the following sets of compounds concerning SN2 reactivity. Most reactive=1; Least reactive=3. CH3 H3C-C-Cl CH3CH2CH2Cl (a) CH3 CS Scanned with CamScanner Cl CH3CH2CHCH3arrow_forward11B.9 The rotational constant of 12C16O is 57.65 GHz. Calculate the value of J for the mostpopulated level at 300 K. Before solving the problem please also give a brief explanation of the concept or associated equation(s) and variables.arrow_forwardNonearrow_forward
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