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PROBLEMS (Useful constants: h=6626 x 10-34Js; k=1.381 × 10-23 JK-I, c= 2.998x10sms-1; 8㎡ × 78956: atomic...
1. For the following problems consider these masses and constants: H = 1.008 amu; ?H =...
1. For the following problems consider these masses and constants: H = 1.008 amu; ?H = 2.014 amu; 1271 = 126.9 amu; 1 amu = 1.661 x 10-27kg a. For the infrared spectrum of 'H''I there is an intense line at 2309 cm". Calculate the force constant of 'H21. [12 points) b. What is the zero-point energy of 'H271? [6 points] c. Substituting a deuterium atom for the hydrogen atom in HI has no effect on the force constant. What...
NA 6.022 x 103 molecules/mole k 1.381 x 1023 J/K c 2.997 x 108 m/s 1...
NA 6.022 x 103 molecules/mole k 1.381 x 1023 J/K c 2.997 x 108 m/s 1 cal 4.186 J mp 1.673 x 1027 kg 1 atm 1.013 bar h 6.626 x 10-34 Js R 8.315 J/(mol K) 1 bar 10% Pa 1. (15 points) 2.0 moles of a monatomic ideal gas undergo a 3 step cyclic process. The process begins in state A at 1.00 atm, 297 K. The gas is heated slowly at constant pressure until it reaches state...
Useful Constants: R R J mol i K i 8.3144 F 9.6485 x 10 C mol-1...
Useful Constants: R R J mol i K i 8.3144 F 9.6485 x 10 C mol-1 1. The standard reduction potentials for the cerium(IV) ion and the bismuthyl ion are shown below along with their corresponding reactions: Eo 3+1.61 V Cei (ag) e Ce3+(ag) Bi (s) H20 Eo +0.32 V Biot (aq) +2H+ (aq) +3e In a galvanic cell, the following oxidation-reduction reaction occurs: 3Cei (aa) Bi(s) +H20() 3ce3+(aq) Biot (aq) 2H+ (aq). Use the half-reactions and the overall reaction...
Please I need help on this. I'm so lost 1. Acetic acid (H)CO2H) has k, =...
Please I need help on this. I'm so lost
1. Acetic acid (H)CO2H) has k, = 1.8 x 10- and acetate (H:C:01") has ks = 5.6 x 10-10. (a) Write balanced chemical equilibrium equations (with physical states) for acid dissociation of acetic acid and base hydrolysis of acetate ion. (b) Write K, and equilibrium constant expressions for the above reactions. (c) Use your expressions from part b to show that Kx. = 1.0 x 10-* = [H,O'][OH). 2. For each...
MATERIAL SECTION Materials Formulae Equations E-holk Constants h-4.125 x 10"eVs c 3 x 10 m's c,...
MATERIAL SECTION Materials Formulae Equations E-holk Constants h-4.125 x 10"eVs c 3 x 10 m's c, (w) = 0140 k.Akg K) Density of W-1925 g/em Violet light, λ-040425 pm Blue light, λ-0424-0 49 μm Green light, λ 0490 55 μm Yellow light, λ-055056 Orange light, λ-o560 6Spm Red light, λ-0.65-0.7 μm α(W) " 4 x 104K" Cp of water-4.2kJ/kg.k); Density of water: 1000 kg/m 01: 11+1+2+2-6 Marks Qla: Does the connection below represent a forward biased or reversed biased situation?...
23. Calculate the ThOD for wastewater containing 40 mg/l. sucrose C.H0.1. (atomic weights: C: 12 H:1 0:16) a 192 b...
23. Calculate the ThOD for wastewater containing 40 mg/l. sucrose C.H0.1. (atomic weights: C: 12 H:1 0:16) a 192 b 180 40.0 42.7 d e 85.4 other, write you answer- 24. When drinking water is disinfected with chlorine, an undesired byproduct, chloroform (CHCb). may be formed. Suppose a 70-kg person drinks 2 L of water every day for 70 years with a chloroform concentration of 0.04 mg/L (the drinking water standard). Potency factor for chloroform- 6.1 x 10 (mg/kg-day) The...
I didn't know which one so I posted all of what I was provided Acid/Base Ionization...
I didn't know which one so I
posted all of what I was provided
Acid/Base Ionization Constants at 25 °C Acid Formula Kal Ka2 Каз Acetic acid CH3COOH 1.8x10-5 Acetylsalicylic acid (aspirin) HC,H-04 3.0x10-4 Aluminum ion Al(H20)43+ 1.2x10-5 Arsenic acid H3 AsO4 2.5x10-4 5.6x10-8 3.0x10-13 Ascorbic acid H2C6H606 7.9x10-5 1.6x10-12 Benzoic acid CH3COOH 6.3x10-5 Carbonic acid H2CO3 4.2x10-7 4.8x10-11 Ferric ion Fe(H20)63+ 4.0*10-3 Formic acid HCOOH 1.8x104 Hydrocyanic acid HCN 4.0*10-10 Hydrofluoric acid HF 7.2x104 Hydrogen peroxide H202 2.4x10-12 Hydrosulfuric...
Arial v 10 BBv CV A. L29 H J K 1 2 3 4 5 6...
Arial v 10 BBv CV A. L29 H J K 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 fx А B С D E F G I Goodfellow's Flower Shoppe purchased a new delivery van on January 1st. The van cost $45,000 and is expected to have a useful life of 100,000 miles, with a salvage value of $5,000 after that time. Calculate the depreciation for each of the next five years, assuming...
13. The resistivity of aluminum at 25 'C has been measured to be 2.72 x 10-8 0 m. The thermal coefficient of resistivity of aluminum at 0 C is 4.29 x 10-3 K-1. Aluminum has a valency of 3, a d...
13. The resistivity of aluminum at 25 'C has been measured to be 2.72 x 10-8 0 m. The thermal coefficient of resistivity of aluminum at 0 C is 4.29 x 10-3 K-1. Aluminum has a valency of 3, a density of 2.70 g cm3, and an atomic mass of 27 a. Calculate the resistivity of aluminum at-40°С. (Ans: 2.03 x 103 Ω m) b. What is the thermal coefficient of resistivity at-40'C? (Ans: 5.23x 103K c. Estimate the mean...
state the equation that you use Semiconductor Germanium has a density of 5323 a. cm- and...
state the equation that you use
Semiconductor Germanium has a density of 5323 a. cm- and atomic mass of 72.63u. If we assume that Germanium can contribute 1 conducting electron per atom, calculate the maximum number of conducting electrons in a silicon sample of 2cm X 10cm X 10cm. E1, frd = eftew+1E2, ~êr = ()**; Superconductor E3, M05T, = constant; E4, E,0) = 3.54k87c; E5, E,(T) = 1.74E,(0)(1-3)*; E6, critical magnetic field B.(T) = B_(0)(1-). Order of energy of...
1. For the following problems consider these masses and constants: H = 1.008 amu; ?H = 2.014 amu; 1271 = 126.9 amu; 1 amu = 1.661 x 10-27kg a. For the infrared spectrum of 'H''I there is an intense line at 2309 cm". Calculate the force constant of 'H21. [12 points) b. What is the zero-point energy of 'H271? [6 points] c. Substituting a deuterium atom for the hydrogen atom in HI has no effect on the force constant. What...
NA 6.022 x 103 molecules/mole k 1.381 x 1023 J/K c 2.997 x 108 m/s 1 cal 4.186 J mp 1.673 x 1027 kg 1 atm 1.013 bar h 6.626 x 10-34 Js R 8.315 J/(mol K) 1 bar 10% Pa 1. (15 points) 2.0 moles of a monatomic ideal gas undergo a 3 step cyclic process. The process begins in state A at 1.00 atm, 297 K. The gas is heated slowly at constant pressure until it reaches state...
Useful Constants: R R J mol i K i 8.3144 F 9.6485 x 10 C mol-1 1. The standard reduction potentials for the cerium(IV) ion and the bismuthyl ion are shown below along with their corresponding reactions: Eo 3+1.61 V Cei (ag) e Ce3+(ag) Bi (s) H20 Eo +0.32 V Biot (aq) +2H+ (aq) +3e In a galvanic cell, the following oxidation-reduction reaction occurs: 3Cei (aa) Bi(s) +H20() 3ce3+(aq) Biot (aq) 2H+ (aq). Use the half-reactions and the overall reaction...
Please I need help on this. I'm so lost
1. Acetic acid (H)CO2H) has k, = 1.8 x 10- and acetate (H:C:01") has ks = 5.6 x 10-10. (a) Write balanced chemical equilibrium equations (with physical states) for acid dissociation of acetic acid and base hydrolysis of acetate ion. (b) Write K, and equilibrium constant expressions for the above reactions. (c) Use your expressions from part b to show that Kx. = 1.0 x 10-* = [H,O'][OH). 2. For each...
MATERIAL SECTION Materials Formulae Equations E-holk Constants h-4.125 x 10"eVs c 3 x 10 m's c, (w) = 0140 k.Akg K) Density of W-1925 g/em Violet light, λ-040425 pm Blue light, λ-0424-0 49 μm Green light, λ 0490 55 μm Yellow light, λ-055056 Orange light, λ-o560 6Spm Red light, λ-0.65-0.7 μm α(W) " 4 x 104K" Cp of water-4.2kJ/kg.k); Density of water: 1000 kg/m 01: 11+1+2+2-6 Marks Qla: Does the connection below represent a forward biased or reversed biased situation?...
23. Calculate the ThOD for wastewater containing 40 mg/l. sucrose C.H0.1. (atomic weights: C: 12 H:1 0:16) a 192 b 180 40.0 42.7 d e 85.4 other, write you answer- 24. When drinking water is disinfected with chlorine, an undesired byproduct, chloroform (CHCb). may be formed. Suppose a 70-kg person drinks 2 L of water every day for 70 years with a chloroform concentration of 0.04 mg/L (the drinking water standard). Potency factor for chloroform- 6.1 x 10 (mg/kg-day) The...
I didn't know which one so I
posted all of what I was provided
Acid/Base Ionization Constants at 25 °C Acid Formula Kal Ka2 Каз Acetic acid CH3COOH 1.8x10-5 Acetylsalicylic acid (aspirin) HC,H-04 3.0x10-4 Aluminum ion Al(H20)43+ 1.2x10-5 Arsenic acid H3 AsO4 2.5x10-4 5.6x10-8 3.0x10-13 Ascorbic acid H2C6H606 7.9x10-5 1.6x10-12 Benzoic acid CH3COOH 6.3x10-5 Carbonic acid H2CO3 4.2x10-7 4.8x10-11 Ferric ion Fe(H20)63+ 4.0*10-3 Formic acid HCOOH 1.8x104 Hydrocyanic acid HCN 4.0*10-10 Hydrofluoric acid HF 7.2x104 Hydrogen peroxide H202 2.4x10-12 Hydrosulfuric...
Arial v 10 BBv CV A. L29 H J K 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 fx А B С D E F G I Goodfellow's Flower Shoppe purchased a new delivery van on January 1st. The van cost $45,000 and is expected to have a useful life of 100,000 miles, with a salvage value of $5,000 after that time. Calculate the depreciation for each of the next five years, assuming...
13. The resistivity of aluminum at 25 'C has been measured to be 2.72 x 10-8 0 m. The thermal coefficient of resistivity of aluminum at 0 C is 4.29 x 10-3 K-1. Aluminum has a valency of 3, a density of 2.70 g cm3, and an atomic mass of 27 a. Calculate the resistivity of aluminum at-40°С. (Ans: 2.03 x 103 Ω m) b. What is the thermal coefficient of resistivity at-40'C? (Ans: 5.23x 103K c. Estimate the mean...
state the equation that you use
Semiconductor Germanium has a density of 5323 a. cm- and atomic mass of 72.63u. If we assume that Germanium can contribute 1 conducting electron per atom, calculate the maximum number of conducting electrons in a silicon sample of 2cm X 10cm X 10cm. E1, frd = eftew+1E2, ~êr = ()**; Superconductor E3, M05T, = constant; E4, E,0) = 3.54k87c; E5, E,(T) = 1.74E,(0)(1-3)*; E6, critical magnetic field B.(T) = B_(0)(1-). Order of energy of...
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