The table below shows some published values of the growth parameters of SiO2 on silicon. For the dry growth process, the parameter z is already evaluated. Table 4.1 Oxidation coefficients for silicon Dry Wet (640 torr) Temperature (C) A (um) B (um/hr) 7 (hr) A (um) B (um³/hr) 800 920 0.370 0.235 0.165 0.0011 0.0049 1.4 0.50 0.203 0.37 0.076 0.027 1000 0.0117 0.226 0.287 0.510 0.720 0.090 0.027 0.11 1100 1200 0.040 0.045 0.05 a) At a temperature of 1100°C, what starting oxide thickness does this data for the dry oxide growth assume? b) Using the parameters in the above table, determine total thickness if a dry oxidation was carried out for 5 hours at 1100°C. “

(27) What is the value of the equilibrium constant (Keq) when the following redox reaction takes place at 727°C? Mn (s) + Sn¹+ (aq) → Mn²+ (aq) + Sn²+ (aq) (A) 2.55 x 10¹3 (B) 2.76 x 10¹8 (C) 7.62 x 1036 (D) 5.23 x 10-15 (E) 3.62 x 10-1⁹ The most convenient form of the equation for this one might not be on your note sheet. I suggest using: RT ECELL -In K nF (28) An archaeologist claims that a bone in her collection is from a saber-toothed tiger that is believed to have the carbon-1

What volume of oxygen gas at STP must be consumed to produce the corrosion of 200 g of iron? Hint. Fe- Fe2+ +2e (one mole of Fe produces 2 moles of electrons) 40H 02+2H20+4e (42 mole O2 = 1 mole Fe) V=nRT/p =(8.314J/mol)

Calculate AG for the formation of one mole of N₂O4 from its elements using AH and ASfº for N₂O4. Use data in the table below: Substance Ag(s) AgCl(s) Al(s) Al₂O3(s) C(s) (graphite) (8) CO₂(g) CH₂(g) CH₂Cl(g) CH₂OH(1) C₂H₂(g) C₂H4(g) C₂H6(g) C8H18 (7) C₂H₂OH(1) Ca(s) CaCO3(s) CaCl₂(s) 197.9 213.6 186.2 234.2 126.8 CO(NH,),(s) 104.6 CO(NH,),(aq) 173.8 200.8 219.8 229.5 466.9 161 CO(g) CO₂(g) CH4(g) Substance Ag(s) AgBr(s) AgCl(s) Al(s) Al₂O3(s) C(s) (graphite) Standard Entropies of Some Typical Substances at 298.15 K Sº (J mol-¹ K-¹) 40 76.1 107 C₂H₂(g) C₂H4(g) C₂H6(g) C₂H,OH(1) Ca(s) CaBr₂(s) CaCO3(s) CaCl₂(s) CaO(s) Cl₂(g) Fe(s) Sᵒ (J mol-¹ K-¹) Fe₂O3(s) H₂(g) H₂O(g) H₂O(1) AGO = CH₂Cl(g) CH₂I(g) CH₂OH(1) CO(NH₂)2(s) (urea) CO(NH,),(aq) kJ mol-1 42.55 96.2 28.3 51.0 Ca(OH)₂(s) CaSO4(s) CaSO4 H₂O(s) CaSO4-2H₂O(s) 5.69 41.4 92.9 114 Substance CaO(s) Ca(OH)₂(s) CaSO4(s) CaSO4+H₂O(s) 131 CaSO4-2H₂O(s) 194.0 223.0 27 Cl₂(g) Fe(s) Fe₂O3(s) H₂(g) H₂O(g) H₂O(1) HCI(g) HNO3(1) H₂SO4(1)…

Which among the following metals has the most tendency to form oxide layers on surface implants? TABLE II.4.4.5 Electrochemical Series Metal Potential (V) Gold 1.43 1.20 Platinum Mercury 0.80 Silver 0.79 0.34 Copper Hydrogen Lead Tin Molybdenum Nickel Cobalt Cadmium Iron Chromium Zinc Aluminum Titanium Magnesium Sodium Lithium titanium iron tin aluminum 0 -0.13 -0.14 -0.20 -0.25 -0.28 -0.40 -0.44 -0.73 -0.76 -1.33 -1.63 -2.03 -2.71 -3.05

= oft C W Write balanced half-reactions for the following redox reaction: Erosoft Microsoft 5.52.210.. O ELECTROCHEMISTRY Writing the half-reactions of a complex redox reaction in acidic ... esc 2+ Zn (aq)+Bi (aq)+6OH(aq) ► Zn(s)+BiO3(aq)+ 3 H₂O(1) reduction: oxidation: 0 Explanation < 3+ Check 0217 Q 103 SEV ♫ MacBook Pro ©20

Assuming an efficiency of 49.10%,49.10%, calculate the actual yield of magnesium nitrate formed from 117.8 g117.8 g of magnesium and excess copper(II) nitrate.   Mg+Cu(NO3)2⟶Mg(NO3)2+CuMg+Cu(NO3)2⟶Mg(NO3)2+Cu   actual yield:

What is Eocell in volts? In (s) | In(OH)3 (s)  || SbO2- (aq) | Sb (s) In(OH) 3 (s) + 3 e-⟶In (s) + 3 OH- Eo = -1.00 VSbO2- (aq) + 2 H2O (l) + 3 e-⟶ Sb (s) + 4 OH- (aq) Eo = -0.66 V Group of answer choices +1.66 +0.34 -0.34 +1.98 -1. 66

Standard Reduction (Electrode) Potentials at 25 Half-Cell Reaction * (volts) F2(8) + 2 e2F (aq) 287 Ce* (aq) +e Ce (aq) 1.61 Mn0, (aq) + BH'(aq) +5e Mn"( "(aq) + 4 H20(1) 1.51 Cla(g) +2e -2 C (aq) 1.36 Cr20, (aq) + 14 H'(aq) - 6e2 Cr*"(aq) + 7 H20() 1.33 Oz() + 4 H'(aq) + 4e2 H20(1) 1.229 Br20) + 2 e2 Br (aq) 1.08 NO3 (aq) + 4 H'(aq) + 3eNO(g) + 2 H20() Hg"(aq) 0.96 2 Hg (aq) + 2e 0.920 Hg"(aq) + 2 e- Hg(1) 0.855 Ag (aq) +e Ag(s) 0.799 Hg2" (aq) - 2e-2 Hg(1) 0.789 Fe" (aq) +e Fe"(ag) 0.771 12(s) + 2e 21 (aq) 0.535 Fe(CN)"(aq) + e Fe(CN), (aq) 0.48 Cu (aq) + 2eCu(s) 0.337 Cu"(aq) +e- Cu (aq) 0.153 S(s) + 2 H'(aq) + 2 e H2S(aq) 0.14 2H'(aq) + 2e-H2(8) 0.0000 Pb (aq) + 2e- Ph(s) -0126 Sn (aq) + 2 e Sn(s) -014 Ni (aq) + 2 e- Ni(s) -0.25 Co (aq) + 2 e Co(s) -0.28 "(aq) + 2e Cd(s) -0.403 Cr"(aq) +e "(aq) -041 Fe"(aq) + 2 e Fe(s) -044 Cr"(aq) +3e-Cr(s) -0.74 Zn"(aq) +2 e- Zn(s) -0.763 2 H20() +2e Hz(z) + 2 OH (aq) -0.83 Mn"(aq) + 2e - Mn(s) -1.18 A" (aq) + 3e- Al(s) -1.66 Mg (aq) + 2 e- Mg(s)…

Question 21 of 26 What is the change in enthalpy in joules when 5.44 x 10-4 mol of AgCI dissolves in water according to the following chemical equation: AgCI(s) – Ag*(aq) + Cl-(aq) AH = 65.5 kJ STARTING AMOUNT ADD FACTOR ANSWER RESET *( ) 1 1000 0.001 3.56 х 10° 0.0356 35.6 0.00831 65.5 6.022 x 1023 5.44 x 10-4 g Ag+ J g Cl- mol Ag* kJ mol AgCI g A9CI mol Cl-