Please explain your answer Consider the following molecules: H2O, HOD and D20 (D = 2H). Which...
Consider the following molecules: H2O, HOD and D2O (D = 2H). Which of the following correctly describes the relative ordering of their vibrational energy (including ZPVE) at 298 K?
Please explain your answer A HF/6-31G(d) geometry optimisation and frequency calculation was performed for the Br2 molecule under standard state conditions (1 atm and 298 K). The thermal corrections were calculated based on the ideal gas rigid rotor harmonic oscillator approximation. Which of the following properties will change when the calculation is repeated at 0.5 atm and 298K? Select one: O a. The electronic energy b. The optimised geometry O c. The translational entropy d. The vibrational frequencies e. The...
Please try to answer all the components with explainations if possible. Thank you! 17.41 The chemical behavior of deuterium (D or 2H) is essentially identical to that of hydrogen (H). Therefore, D20 be- haves the same as H20, LiAID4 behaves the same as LiAIH, and CD3Li behaves the same as CHaLi. With this in mind, draw the detailed mechanism of each of the following reactions. Using the mechanism, predict the reaction products 0 0 1. LiAID 1. LiAID 2. H2O...
Please explain your answer T20 is the “heavier' isotopologue of H20. Without explicit calculation of the translational partition function (qtrans), predict which molecule has a higher value of qtrans at a given temperature and pressure. You may assume the ideal gas approximation. Select one: O a. T20 would have a smaller (trans because it has more kinetic energy. b. H2O would have a larger qtrans because it is lighter. c. H2O would have a smaller Otrans because it is lighter....
For which of the following molecules is hydrogen bonding NOT possible? ОА H2O OB. All of these can hydrogen bond OC NH OD OEHF ♡ QUESTION 2 + + HCO31 H20 coz 2 H30* What role is water playing in the acid-base chemical reaction above? O A BASE OB CONJGATE BASE OC.CONJUGATE ACID D. ACID QUESTION 3 At room temperature, water is a liquid while methane is a gas. Which statement compares the intermolecular forces in these molecules correctly? O...
Please explain, thank you! (4) Consider a cell at 298 K in which the reaction is Pb (s)+2H (aa-Pb2+ (ag) +H2 (g) (a) Cr ions are added to the Pb|Pb2+ half-cell to precipitate PbCh. The cell voltage is then measured to be +0.210 V. If [H]-1.0 M and the partial pressure of hydrogen is 1.0 atm, what is [Pb2*]? (answer: 1.57 x 103 M) (b) Calculate the Kp of PbCh if [Cl]-0.10 M in the PblPb2 half-cell. (answer: 1.57 x...
answer a,b,c, and d! all questions please 10.(9 pts) Consider the following balanced equation: 2 N2H. + N204 → 3N2 + 4 H 0 Fill in the missing values in the statements below based on this balanced equation: a) 4 moles NzH4 + -moles N204 → __moles N2 + __moles H20 b) 6 molecules NzH. + molecules N204 → molecules N2 + _ molecules H20 c) 64.0 grams NzH4 + -_grams N20. -_grams N2 + --_grams H2O
7. Which of the molecules below gives the following 'H NMR spectrum? Explain your answer. 3H 2H 3H 4.0 3.5 3.0 2.5 1.5 1.0 PPM 0.5 5.6 a) b) d) JOHN OH 8. Which of the below given molecules gives the following MS spectrum? Explain your answer. 100 3D (100%) 16 1725 80.- 60.- Rol Abundance 40.- 20.- (NEVES ( 88) 10 1. INZE 15 (19) 0 10 20 30 40 50 80 miz a) CH3C1 b) CHF c) CH2Cl2...
1. Which of the following will have the greatest standard molar entropy (Sº)? a. NH3(g) d. H:0(1) b. He(g) e. CaCO(s) c. C(s, graphite) 2. Indicate which of the following has the highest entropy at 298 K. a. 0.5 g of HCN b. 1 mol of HCN c. 2 kg of HCN d. 2 mol of HCN e. All of the above have the same entropy at 298 K. EVALUATING AS FOR REACTIONS (non-math recognition) 3. Indicate which one of...
please explain why Which of the following aqueous solutions would have the highest osmotic pressure at 298 K? O 0.5 M (NH4)2SO4 O pure H20 O 1.5 M glucose (C6H1206) O 1M MgCl2 O 1M NaNO3