- Consider the elementary reaction shown below at 645 K: 2HI(g) = H₂(g) + I2(g), k= 1.44 x 104 M-¹ s¹ If 2.00 moles of HI are placed into a 5.00 L container, how many hours will pass after two half-lives?

Vinegar is typically about 5% acetic acid. What is the other 95% ?

+ I| P. * C0 ** w/ Table 3. Heat of neutralization data and calculations Table view List view Sample 1 [1] Volume of HCI (mL) Sample 2 (2) Temperature of HCI (mL) 6'6 24.0 [3] Volume of NAOH (mL) 24.2 49.8 [4] Temperature of mixture after reaction ("C) 6'6 31.0 Temperature difference (*C) 6'08 [5] Number of calories evolved (cal) enter a positive value (6] Moles of H* that were (jow) pazijennau [7] Calories evolved per mole of (jou/je) „H (2pts) Average of the two trials of calories evolved per mole of H (7pts) Part B. Enthalpy of Solution of Salts Table 4 Enthalny of solution of salts data andcalculations MacBook Air 08 DO #3 3 F8 24 2. % OL1 4. * 5. 9. 8 7. R. dele D. F. C. W command puDwwoɔ option

E' I с E 1. Phenylamine is an aromatic amine that is used in the manufacture of dyes. When absorbed through the skin it causes the Fe+2 in hemoglobin to become oxidized into Fe+3, resulting in the formation of methemoglobin which cannot bind to or transport oxygen. Phenylamine is soluble in water and acts as a weak base. a. a. CøHşNHz (aq) + H2O (l) = CHşNH;* (aq) + OH (aq) When you measure the concentrations of the ionized substances you find them to be: [C6H5NH₂] = 0.234 mol/L [C6H5NH3*] = 2.8 x 10³ mol/L [OH-]= 2.8 x 10³ mol/L If the K is 4.27 x 10-10, is the reaction at equilibrium? If not, which direction does it need to move (right or left) to reach equilibrium? Explain. At equilibrium the concentrations of the ionized substances are: [C6H5NH₂] = 0.0537 mol/L [C6H5NH3*] =4.79 x 10€ mol/L [OH-]= 4.79 x 10¹ mol/L If this reaction is taking place in a 2.0L container, and 1.5 moles of phenylamine were added to the reaction, what will the new concentrations of the three ionic species…