Consider the following reaction: Mannose + Pi + H+ >Mannose 6-phospate + H2O The above reaction was started with the following initial concentrations of: [Mannose] = 0.020 mM. [Mannose 6-phosphate] = 0.28 mM, [H2O] = 55.6 M [Pi] = 0.020 mM and [H+] = 10*7 M The reaction was allowed to proceed until equilibrium was reached at 250 C generating equilibrium concentrations of: Mannose] = 0.300 mM. [Mannose 6-phosphate] = 0.59 X 10-10 M, [H₂O] = 55.6 M [Pi]=0.300 mM and [H+] = 107 M Calculate K'eq Type your answer...

Consider the following reaction catalyzed by Phosphopentose Epimerase at 37 oC.                    Xylulose 5-phosphate      --->     Ribulose 5-phosphate At equilibrium, the ratio of Xylulose 5-P / Ribulose 5-P = 1/18.85  Which direction would the reaction proceed as written under standard conditions?

-1000 Decomposition Rezctions Carbon Reduction Reactions AH AS (kJ) (JK-mol) O 2 Ag,0(s) → 4 Ag(s) + O2(g) +62.2 +132.7 O 2 MgO(s) → 2 Mg(s) + O2(g) +1202.4 +216.7 1000- O 2 AlhO3(s) → 4 Al(s) – 3 02(g) +3351.4 +546.8 O 2 Fe2O3(s) → 4 Fe(s) – 3 O2(g) +1648 4 +5515 O 2 HgO(s) → 2 Hg(t) + 0,(g) +181.7 +286.8 2000- O 2 Cr,03(s) → 4 Cr(s)– 3 0,(g) 2269 4 +548.4 Temperature 3000 300 300 K 2000 Temperature ((K) Clear Graph The metals Mg and Al, like most metals in groups 1A, 2A, and 3A of the periodic table, cannot be obtained by chemical reduction with carbon at reasonable temperatures. What procesS Is used to obtain these metals from their ores? positive

mulation: Carbohydrates: The 1o1 Chem101 Question 10 of 20 Write a balanced chemical equation based on the following description: solid CH100 is burned with oxygen gas to produce gaseous carbon dioxide and water vapor D4- D3- 12- 2+ 3+ [4+ 1 3 4 7 8. 5 (s) (g) (aq) C Cr Ox H Са W Cb Reset •* H,O Delete acer

Please answer this with work shown! Thank you!

3. In acidsolution, chlorate(V) ions, CIO; slowly oxidize chloride ions to chlorine. The following kinetic data are obtained at 25 °C. [CH)/ M Initialrate / Ms' 10 x 105 4.0 x 10 [CIO,1/M [H'1/M 0.20 Experiment 0.08 0.15 2 3 0.08 0.15 0.40 0.15 0.30 8.0 x 105 2.0 x 10 0.16 0.40 0.08 0.20 a. Write the halfequation for the oxidation of chloride ion to chlorine. b. Write the balanced equation for this reaction. Given the half equation for reduction is: 2CIO, + 10 e + 12H → C, + H20 c. Determine the order of the reaction with respect to each rea cta nt.

18. For the following reaction, ort norw anoituloe onitiuesn srit to Hg arit onimstsd 00S D -> CO2 (g) + H2 (g) MKc = 1.845 %3D CO (g) + H2O (g) a. Write the Kc expression for this reaction. b. If a 1.00L vessel is charged with 0.250 moles of CO, 0.205 moles ofH2O, 0.750 moles of CO2 and 0.750 moles of H2, in which direction does the reaction progress? HOOM MO00E.0 to Jm00.21 riw bsxim sOgHH MO 02E0 0 to Jm00.8! d c. What are the equilibrium concentrations of all species? DH MO0010 io Jm00 astiw baxim cHM MO0OS.0 to Jm0.SS

34. A key step in the formation of sulfuric acid from dissolved SO2 in acid precipitation is the oxidation of hydrogen sulfite ion by hydrogen peroxide: HSO, (ag) + H2 O2 (aq) → HSO, (aq) + H2O(t) The mechanism involves peroxymonosulfurous acid, SO20OH¯: k1 HSO, (aq) + H2 O2 (ag) 2 SO200H (ag) + H2 O (l) k-1 k2 SO200H (aq) + H3O+ (aq) → HSO, (ag) + H3O† (aq) By making a steady-state approximation for the reactive intermediate concentration, [SO20OH (ag)], express the rate of formation of HSO, (aq) in terms of the concentrations of HSO, (aq), H2O2 (aq), and H3 O“(aq).

For questions 12-13, refer to the following table. Enzyme carbonic anhydrase fumarase ribonuclease 12. 13. acetylcholinesterase KM (mol/L) 2.6 x 10-2 5 x 10-6 Kcat (S-1) 4 x 105 800 7.9 x 10-3 9.5 x 10-5 790 1.4 x 104 (1 point) Calculate the initial reaction velocity for acetylcholinesterase (corresponding to the initial few percent of substrate consumed). Assume a total enzyme concentration of 1 nM and substrate concentration of 100 mM. Show your work. (1 point) For ribonuclease, what concentration of substrate is needed to produce half the velocity that would be obtained in the limit of an "infinitely high" concentration of substrate?

10a. Calculate the Ecell for the reaction Fe3+ Cr2 -----> Fe+2+ Crt3, when (Fe+3) = (Cr+2) = 1.50 x 10-³ M and (Fe+2) = Cr+3) = 2.5 x 10-4 M