Question

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29. Using the exact masses given below, calculate the amount of energy released (in J) when one mole of 90sr decays by B decay. 90 (89.907152 amu) 9r (89.907738 amu) B particle (0.000548 amu) B) 4.3 x 108 C) 1.3 x 1010 E) 5.8 x 109 A) 5.3 x 1010 D) 8.8 x 108 30. A certain complex ion has a A (crystal field splitting) of 240 kJ/mol. What wavelength should correspond to an absorbance peak in the spectrum of this ion? B) 710 nm E) 500 nm C) 240 nm A) 430 nm D) 665 nm In[A/Ae -kt h 6.63 x 10 J.s -Ea/R- A(Ink)/A(1/T) = 3.00 x 10 m/s c k Aefa/RT R- 0.0821Latm/K.mol = 8.314J/K.mol AG AG°+ RTInQ AG=-nfE E- E-(0.0592/n) logQ pH pKa+log([Base]/[Acid]} Spectrochemical Series: Br SCN C

Answer 1

T-Rt reeactton o 90 -1 39r SEus TRe amount a enerealeanedn ten presears Can be calealated defeet mars Comars of a AM + mars 90 SY33 mars 39.997152 + Coos1) 89.904138 -3.8X10-5 amu Here the mass defect endicate tat mpdt Zman -Ve 1Mev -nt -10 x1.602 xl-692 X169J 931 XAm K931X3.3 X10- x1 -5.604X10 CA value of ndicated t proeen +R Options TRi -Ve 9 tRink arce hcoceeet We mow constant Piat RPlane's 34 5-626 X10 3-sec K3x1 m1s AE 210x10 m 8.28 2 5 X m/m 8-2825 X1 023 XI0 m 4.988 X167m 498 nm 500 nm