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- 25. An indlcation of the average formula weight of a fat is its saponification number, expressed asthe mlligrams KOH requlred to hydrolyze (saponify) 1 g of the fat: CH,CO,R CH,OH CHCO,R + 3KOH → CHOH + 3RCO,K CH;CO,R CH,OH where R can be variable. A 1.10-g sample of butter is treated with 25.0 mL of 0.250 M KOH solution. After the saponification is complete, the unreacted KOH is back-titrated with O.250 M HCI, requiring 9.26 mL. What is the saponification number of the fat and what is its average formula weight (assuming the butter is all fat)?Br OH Br2 H2O HO Br DEF FED DEF FED2) au Fill in reactants, products or conditions needed to complete the following reactions. a) /T b) () مر d) Br Br H Br ott Mecht Tsc
- (Q95) Given the hypothetical reaction A (g) 3 B (g), that has an equilibrium constant of Keg 0.173. If the current concentration of A = 0.442 M and that of B = 0.395 M, the reaction will proceed forward (favoring products). O True O FalseH9SO4. H,SO4(aq)10. An element has two isotopes of relative atomic masses 41.0 u and 44.0 u. The relative abundance of the isotopes are 90.0% and 10.0% respectively. The average atomic mass of the element is: (A) 41.0u (B) 41.3u (C) 42.5u (D) 43.7u 2 11. Which of the following phrases best describes the term solubility? (A) the ability of a solvent to dissolve in a solute (B) the ability of a solute to dissolve in a solvent (C) the maximum amount of solute that will dissolve in solvent at a given temperature (D) the maximum amount of solvent that will dissolve in a solute at a given temperature 4