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- Complete the following reaction: 27Al13 + α → 30P15 P + __[a]_____Using the following data to calculate Ksp for PbSO4. ε° PbO2 + 4H+ + SO42- + 2e-→ PbSO4(s) + 2H2O +1.69 PbO2 + 4H+ + 2e-→ Pb2+ + 2H2O +1.46 (Hint: Write the general reaction for PbSO4) a. 1.7 × 10-8 b. 5.9 × 107 c. 2.5 × 10-107 d. 4.0 × 10106 e. 3.4 × 10-18An enzyme-catalyzed reaction has a Km of 1 mM and a Vmax of 4 nmole/L sec-1. The reaction velocity (nmole/L sec-1) when the substrate concentration is 0.25 mM is: A. 1.25 B. 10.0 C. 5.0 D. 0.50 E. 1.0 F. 100 G. 150 H. 55 I. 75
- Which of the following is a spontaneous reaction.? a. Rxn with ΔH =- 10Kj/mol ΔS= -5J/mol T= 300K b. NaCl +H20 -> NaOH + HCl 25C c. H20(l) -> H2O(s) Temp: 25C d. Dissolution of 100g of solid sugar in 100 mL ice tea. Consider following reaction: HgO (s) -> Hg(l) + ½ O2 (g) Delta H = +90.7 kj/mol. What quantity of heat in kj/mol is required to produce one mole HgO? Write your answer without units. Given the following data 2ClF(g) + O2(g) --> Cl2O(g) + F2O (g) Delta H= 167.4 kJ I 2ClF3(g) + 2O2(g) --> Cl2O(g) + 3F2 O (g) Delta H= 341.4 kJ II 2 F2(g) + O2(g) ---> 2F2O (g) Delta H= -43.4 kJ III Calculate the delta H in kJ for below reaction: ClF(g) + F2(g) ---> ClF3(g)EXPLAIN IN 3-5 SENTENCES:1. What are the tissue sources of Alkaline phosphatase? 2. What are Regan and Nagao isoenzymes? 3. State other approach of ALK determination through the existing isoenzymes.CaCO3(s)<->Ca^2+(aq)+CO3^2-(g). write down Ksp for this reaction
- This reaction must have a ∆G<0 at SATP: Xe(g)+F2(g)→XeF2(g) 2Na(s)+Cl2(g)→2NaCl(s) 2NaF(s)+I2(s)→2NaI(s)+F2(g) MgSO4(s)→Mg(s)+S(s)+2O2(g)(9.29 × 105/8)-20.81 = with correct sig figsAn aqueous drug solution had an observed first order rate (kobs) constant of 0.058 h^-1at pH of 2.0 and 0.0025 h^-1 at a pH of 6.5. The solvent catalysis rate constant(ko) will be: A. 3.29x10^-3 h^-1 B.4.87x10^-3 h^-1 C.7.35x10^-3 h^-1 D.2.50x10^-3 h^-1 E. 1.45x10^-3 h^-1
- Provide reaction mec2I– (aq) + H2O2 (aq) + 2H3O + (aq) → I2 (aq) + 4H2O (l) (slow) C6H8O6 (aq) + 2H2O (l) + I2 (aq) → C6H6O6 (aq) + 2H3O + (aq) + 2I– (aq) (very fast) I2 (aq) + I– (aq) ⇌ I – 3 (aq) I3- (aq) + starch → blue I3- · starch complex (aq) (fast) A different 0.100 L reaction mixture is prepared with initial concentrations of 1.0×10−2 M iodide I– , 2.0 × 10−3 M ascorbic acid C6H8O6 , and 0.135 M hydrogen peroxide H2O2 . If the first two reactions above procede at the same rate (they’re limited by the first one!), which of these reactants will be completely consumed first?Pls ignore the highlighted part __________ is reduced in thefollowing reaction: Cr2O72- + 6S2O32-+ 14H+→ 2Cr3+ + 3S4O62- + 7H2O