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- 5. (a) What do you mean by 'atom economy' of a reaction? How does it differ from E-factor? Calculate atom economy for the following reactions : A Cao + CO, desired product ti) CACO3- HO HO conc. H2SO4 (i) O °C OEt ČH3What is the concentration of PO43 ions in a satured solution of Mg3(P04)2? The Ksp of Mg3(PO4)2 is 1.04 x 1024. -10 2.55 x10 M Incorrect7, 5. %24 Chem101 https://app.101edu.co Question 5 of 20 Write a balanced chemical equation based on the following description: the reaction of gaseous sulfur dioxide with solid potassium telluride produces gaseous sulfur ditelluride and solid potassium oxide 4+ 12 345 6 8. 6. (s) (1) (g) (aq) Te P. Su •x H:O Delete Reset a 81°F A E I e to search 重X メ 6 1490 OF 6. 30
- Ksp for calcium phosphate = 2*10^(-29)Question 3 3.1 Briefly describe why (and how) adsorption takes place on a solid surface. 3.2 Use your knowledge of adsorption isotherms according to Brunauer to compare adsorption behaviours depicted by graphs A and B below. (A) (B) 30 30 25 25 20 20 15 15 10 10 5 5 0.2 0.4 0.6 0.8 1 0.0000001 0.00001 0.001 0.1 p/p° p/p Vads [cm3/g] STP Vads (cm3/g] STPEach of these reactant pairs may or may not react. If the reaction will happen, write the complete balanced chemical equation. If it won't happen, state the reason why not. a. Pb(s) + Al2(CO3)3 > b. Na + K→ B I u、ケ=▼ 三v = of Paragraph + v ... Lato (Recom.. 19px EQ 12 Add a File Record Audio Record Video
- (27). Subject :- Chemistry106CO2 + 50 SiO, + 16HNO, + H,PO, + 0.001FE + 122H,O → (CH,0),06(SiO,)so(NH3),e(H3PO,)Feo.001 + 13802 a. Calculate the change in (total) CO, in the ocean surface mixed (Temp = 25C, Salinity = 35 ppt) layer if 1 nM of iron is added (and consumed), assuming it is indeed the limiting nutrient. %3D b. Would this change in total CO, affect the alkalinity of the surface ocean? Why/why not? c. How much would the pH of the surface change following this primary production (assuming no respiration/gas exchange)? Use pCO2 = 420 ppm and total alkalinity = 2.2 mM to start your calculations. %3D(25) With respect to the following unbalanced redox equation that takes place in basic solution: MnO₂ (s) + V2+ (aq) → VO3 (aq) + Mn²+ (aq) The stoichiometric coefficient on VO3 (aq) will be: (A) (B) (C) (D) (E) 12462 zirconium-95, and rele
- A is the snort electran canfiquretiCA Fe2+Hydrogen bromide is oxidated with manganese(IV) oxide in acidic solution producing bromine & manganese (II) bromide. The sum of stochiometric coefficients in the balanced molecular equation of this rxn is: (a) 5 (b) 7 (c) 9 (d) 1132x882 2715028=62±3272 Rb K Ba Ca Na Mg AI Mn Zn Cr Co Sn H₂ Cu Ag Hg Reference: Activity Series react with cold water and acids, replacing hydrogen react with acids or steam, but usually not liquid water, to replace hydrogen react with acids, but not water, to replace hydrogen ***reference point*** react with O to form oxides mostly unreactive Increasing Reactivity