Cat С0 You have a 0,25 liter bottle of vinegar. The label claims it is 5% acetic acid (HC H:02) by mass. The density of

Post by **answerhappygod** » Mon May 16, 2022 11:12 pm

: 1 (47.26 KiB) Viewed 46 times

: 2 (54.06 KiB) Viewed 46 times

: 3 (55.38 KiB) Viewed 46 times

Cat С0 You have a 0,25 liter bottle of vinegar. The label claims it is 5% acetic acid (HC H:02) by mass. The density of acetic acid is 1.049 g/mL. The K, of acetic acid is 1.8 x 10 How many moles of acetic acid are in the bottle? 0,05 250(X) - 0.05(60) 60 X-0.012 What is the molarity of the solution? 0.012 x 60 000=1262.2 5 1203,24mL 1.049 1.203 What is the molality of the solution? 4.37 11.203 = 3.632 M 4.374 0 +1000 = 1262.2 x 1.049 = 1324 > 1.3246 What is the pH of the solution? H₂H₂O2 H+ (₂ H₃ 02 1 C 692 E What volume of vinegar (acetic acid) would you expect to be titrated against 20 mLs of standardized 0.100 M NaOH to reach equilibrium? What would be a good indicator to use in this reaction? Why?

If you had to make a 0.1 M buffer for acetic acid, how would you do it? What would the pH of this buffer solution be if you added 50 mLs of your vinegar to 50 mLs of your 0.1M buffer? 1 Given the following information for an exothermic equilibrium reaction, with the changes indicated determine which direction the reaction will go and briefly discuss the reasons (4 points) Fel(aq) + 3Cl(aq) > FeCl (aq) yellow colorless a. you added a solution containing silver ion, Ag+ (silver ion reacts with chloride ion in solution to form precipitate AgCl) It would go to the night because unen you add b. you added HCl (a strong acid that totally disassociates into H+ and Clions) side will go to one side it goes to the other increasing the left It would go to the left because it the night because of hould balance our creating it to added to Yhs. moles. A 2.00 Liter flask was filled with 0.0400 mol SO, and 0.0200 mol O. At equilibrium (900K), the flask contained 0.0296 mol SO, What is the equilibrium constant (K) for the reaction? 6 points] = 0.0400 2 [S03] Kc = the most SO2 02= 0.02007) S03= 0.0296 2 [SO₂ ] ² [02] Kc = КС [0.0296]² [0.0400]2[0.0200] kc Kc = 27.38

01 in Discuss entropy in regards to the Second law of thermodynamics plus relating to the following situation: Gasoline (CsHie) is used in cars as the fuel in a combustion reaction with the reaction C.H+ O2 (g) + CO2(g) + H2O(g) + heat En trophy is the loss of energy available to do more second lows of thermodynamics shares that the total entphy of nuchem either increases rem Contant never ceat Entrophy is on revertible pour in create imavertible proceso. Hinnaomness. when there is a change of temperature, asprually with hear when adding on one side, it ni goto the other side 1 crear mort pnduet, consing 1+ to be more ex do thermic. In this case, with the reaction. increase temperature of them you WOND 90 away from heat where egnede reach On Give the cell notation for the voltaic cell below, identify the half reactions and the anode and cathode favored. Voltmeter CT 2 NO Cu Zn2+ NO, sau Za Cu NO NO Zn Cu saa I IT 2 Anode Cathode ZnZn ²t the Cu2+ + 2 e 7(v Zn(s) 1Zn²+ (aq) Il Cuar (aq) ICU (8) 2n(s) 12 n2T Coa) 1 ll Cu2+ (99Jcvis) 2n(s) 21 i Zner (aa) Page 3 of 3