Chemistry, Loose-leaf Edition (8th Edition)
8th Edition
ISBN: 9780135210123
Author: Jill Kirsten Robinson, John E. McMurry, Robert C. Fay
Publisher: PEARSON
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Chapter 20, Problem 20.64SP
Interpretation Introduction
Interpretation:
Theage of a bone fragment from an archaeological dig needs to be determined, if the bond shows an average of 2.3 radioactive events per minute per gram 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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MISSED THIS? Read Section 19.9 (Pages 878-881); Watch IWE 19.10
Consider the following reaction:
CH3OH(g)
CO(g) + 2H2(g)
(Note that AG,CH3OH(g) = -162.3 kJ/mol and AG,co(g)=-137.2 kJ/mol.)
Part A
Calculate AG for this reaction at 25 °C under the following conditions:
PCH₂OH
Pco
PH2
0.815 atm
=
0.140 atm
0.170 atm
Express your answer in kilojoules to three significant figures.
Ο ΑΣΦ
AG = -150
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kJ
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Calculate the free energy change under nonstandard conditions (AGrxn) by using the following relationship:
AGrxn = AGrxn + RTInQ,
AGxn+RTInQ,
where AGxn is the standard free energy change, R is the ideal gas constant, T is the temperature in kelvins, a
is the reaction quotient.
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Identify and provide a brief explanation of Gas Chromatography (GC) within the context of chemical analysis of food. Incorporate the specific application name, provide a concise overview of sample preparation methods, outline instrumental parameters and conditions ultilized, and summarise the outcomes and findings achieved through this analytical approach.
Identify and provide a concise explanation of the concept of signal-to-noise ratio (SNR) in the context of chemical analysis. Provide specific examples.
Chapter 20 Solutions
Chemistry, Loose-leaf Edition (8th Edition)
Ch. 20 - Prob. 20.1PCh. 20 - Prob. 20.2ACh. 20 - Prob. 20.3PCh. 20 - Prob. 20.4ACh. 20 - Prob. 20.5PCh. 20 - Prob. 20.6PCh. 20 - What is the half-life of iron 59 , a radioisotope...Ch. 20 - Prob. 20.8ACh. 20 - Prob. 20.9PCh. 20 - Prob. 20.10A
Ch. 20 - Prob. 20.11PCh. 20 - Prob. 20.12ACh. 20 - Prob. 20.13PCh. 20 - Prob. 20.14ACh. 20 - Prob. 20.15PCh. 20 - Prob. 20.16ACh. 20 - Prob. 20.17PCh. 20 - Prob. 20.18ACh. 20 - Prob. 20.19PCh. 20 - Prob. 20.20PCh. 20 - Prob. 20.21PCh. 20 - Prob. 20.22PCh. 20 - Prob. 20.23PCh. 20 - Prob. 20.24PCh. 20 - Prob. 20.25CPCh. 20 - Prob. 20.26SPCh. 20 - Prob. 20.27SPCh. 20 - Prob. 20.28SPCh. 20 - Prob. 20.29SPCh. 20 - Prob. 20.30SPCh. 20 - Prob. 20.31SPCh. 20 - Prob. 20.32SPCh. 20 - Prob. 20.33SPCh. 20 - Prob. 20.34SPCh. 20 - Prob. 20.35SPCh. 20 - Prob. 20.36SPCh. 20 - Prob. 20.37SPCh. 20 - Prob. 20.38SPCh. 20 - Prob. 20.39SPCh. 20 - Prob. 20.40SPCh. 20 - Prob. 20.41SPCh. 20 - Prob. 20.42SPCh. 20 - Prob. 20.43SPCh. 20 - Prob. 20.44SPCh. 20 - Prob. 20.45SPCh. 20 - Prob. 20.46SPCh. 20 - Prob. 20.47SPCh. 20 - Prob. 20.48SPCh. 20 - Prob. 20.49SPCh. 20 - The half-life of indium 111, a radioisotope used...Ch. 20 - The decay constant of plutonium 239 , a waste...Ch. 20 - Prob. 20.52SPCh. 20 - Plutonium 239 has a decay constant of 2.88105 year...Ch. 20 - Prob. 20.54SPCh. 20 - Prob. 20.55SPCh. 20 - A 1.0 mgsampleof79Sedecays initially atarate of...Ch. 20 - Prob. 20.57SPCh. 20 - A sample of 37Ar undergoes 8540...Ch. 20 - Prob. 20.59SPCh. 20 - Prob. 20.60SPCh. 20 - Prob. 20.61SPCh. 20 - Prob. 20.62SPCh. 20 - Prob. 20.63SPCh. 20 - Prob. 20.64SPCh. 20 - Prob. 20.65SPCh. 20 - Prob. 20.66SPCh. 20 - Prob. 20.67SPCh. 20 - Prob. 20.68SPCh. 20 - Prob. 20.69SPCh. 20 - Prob. 20.70SPCh. 20 - Prob. 20.71SPCh. 20 - Prob. 20.72SPCh. 20 - Prob. 20.73SPCh. 20 - Prob. 20.74SPCh. 20 - Prob. 20.75SPCh. 20 - Prob. 20.76SPCh. 20 - Prob. 20.77SPCh. 20 - Prob. 20.78SPCh. 20 - Prob. 20.79SPCh. 20 - Prob. 20.80SPCh. 20 - Prob. 20.81SPCh. 20 - Prob. 20.82SPCh. 20 - Prob. 20.83SPCh. 20 - Prob. 20.84SPCh. 20 - Prob. 20.85SPCh. 20 - Prob. 20.86SPCh. 20 - Prob. 20.87SPCh. 20 - Prob. 20.88SPCh. 20 - Prob. 20.89SPCh. 20 - Prob. 20.90SPCh. 20 - Prob. 20.91SPCh. 20 - Prob. 20.92SPCh. 20 - Prob. 20.93SPCh. 20 - Prob. 20.94SPCh. 20 - Prob. 20.95SPCh. 20 - Prob. 20.96SPCh. 20 - Prob. 20.97SPCh. 20 - Prob. 20.98SPCh. 20 - Prob. 20.99SPCh. 20 - Prob. 20.100SPCh. 20 - Prob. 20.101SPCh. 20 - Prob. 20.102SPCh. 20 - Prob. 20.103SPCh. 20 - Prob. 20.104SPCh. 20 - Prob. 20.105SPCh. 20 - Prob. 20.106SPCh. 20 - Prob. 20.107SPCh. 20 - Prob. 20.108SPCh. 20 - Prob. 20.109SPCh. 20 - Prob. 20.110SPCh. 20 - Prob. 20.111SPCh. 20 - Prob. 20.112SPCh. 20 - Prob. 20.113SPCh. 20 - Prob. 20.114MPCh. 20 - Prob. 20.115MPCh. 20 - Prob. 20.116MPCh. 20 - Prob. 20.117MPCh. 20 - Prob. 20.118MPCh. 20 - Prob. 20.119MPCh. 20 - Prob. 20.120MP
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