19. How much energy is released by the decay of 15 grams of 238U by the processional (s 234 Th + ¹He 238 (238 U = 238.050783 g/mol, 234 Th = 234.043602 g/mol, He = 4.002603 g/mol) (3)
19. How much energy is released by the decay of 15 grams of 238U by the processional (s 234 Th + ¹He 238 (238 U = 238.050783 g/mol, 234 Th = 234.043602 g/mol, He = 4.002603 g/mol) (3)
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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q19
![12. The complex [Cu(NH₂),] absorbs light with a wavelength of 342 nm. What is the value of Aº in
kJ/mole?
13. Which of the following is more paramagnetic and why? Prove your answer:
[Mn(NO₂).] or [Mn(H₂O)]³+
14. Is the reaction O₂ + 4H* + 4Fe²+ 2 H₂O + 4Fe³+ (AG° = -177.35 kJ) spontaneous at 25°C and a pH of
2.56 if [Fe²+] = 0.02 M, [Fe³+] = 0.89 M and Po₂ = 0.35 atm?
at
15. For the reaction: CaCO3) CaO + CO2(g) use the thermodynamic data provided to calculate:
a) AG⁰ b) equilibrium constant, Kc) the temperature at which the reaction in equilibrium T= 25°C
16. The reaction (Sn | Sn²+|| Pb²+ | Pb) is at equilibrium at 25°C. Using the standard voltage, determine:
a) Eº
b) K
c) The equilibrium concentration of Zn²+ is if [Cr³+] equals 0.19 M.
17. How many grams of aluminum are produced by the electrolysis of Al₂O3 at 7.5 amps in one hour?
Al₂O3 + 6H+6e* - 2A1+ 3H₂O
2010
½/2
18. An ancient artifact exhibited ¹4C (t = 5730 yrs) decay emissions of 12/min. Living wood has an
activity of 22/min. How old was the artifact?
the
of 238U by
grams
238U 234 Th + ¹He
(238U=238.050783 g/mol, 234 Th=234.043602 g/mol,
19. How much energy is released by the decay of 15
a.
20. Correctly name each of the following compounds:
b.
beverns
H,9
(00.3
OH
process
He = 4.002603 g/mol)
C.
niwlidi
CI
1 st 60
OAH'0) 12 66](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F7120606c-99fa-4a80-8ac4-42c015833f0a%2F53bd96d4-4a19-42cb-8917-a6d4471d1257%2Feeag9de_processed.jpeg&w=3840&q=75)
Transcribed Image Text:12. The complex [Cu(NH₂),] absorbs light with a wavelength of 342 nm. What is the value of Aº in
kJ/mole?
13. Which of the following is more paramagnetic and why? Prove your answer:
[Mn(NO₂).] or [Mn(H₂O)]³+
14. Is the reaction O₂ + 4H* + 4Fe²+ 2 H₂O + 4Fe³+ (AG° = -177.35 kJ) spontaneous at 25°C and a pH of
2.56 if [Fe²+] = 0.02 M, [Fe³+] = 0.89 M and Po₂ = 0.35 atm?
at
15. For the reaction: CaCO3) CaO + CO2(g) use the thermodynamic data provided to calculate:
a) AG⁰ b) equilibrium constant, Kc) the temperature at which the reaction in equilibrium T= 25°C
16. The reaction (Sn | Sn²+|| Pb²+ | Pb) is at equilibrium at 25°C. Using the standard voltage, determine:
a) Eº
b) K
c) The equilibrium concentration of Zn²+ is if [Cr³+] equals 0.19 M.
17. How many grams of aluminum are produced by the electrolysis of Al₂O3 at 7.5 amps in one hour?
Al₂O3 + 6H+6e* - 2A1+ 3H₂O
2010
½/2
18. An ancient artifact exhibited ¹4C (t = 5730 yrs) decay emissions of 12/min. Living wood has an
activity of 22/min. How old was the artifact?
the
of 238U by
grams
238U 234 Th + ¹He
(238U=238.050783 g/mol, 234 Th=234.043602 g/mol,
19. How much energy is released by the decay of 15
a.
20. Correctly name each of the following compounds:
b.
beverns
H,9
(00.3
OH
process
He = 4.002603 g/mol)
C.
niwlidi
CI
1 st 60
OAH'0) 12 66
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