Considerthese following ions: 02 -, N -, Li2 + and O - a. Based on molecular orbital theory (MOT), which of the ion(s) exhibit(s) paramagnetism?
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Considerthese following ions: 02 -, N -, Li2 + and O -
a. Based on molecular orbital theory (MOT), which of the ion(s) exhibit(s) paramagnetism?
b. For those ions that are paramagnetic, determine the number of unpaired electrons. Support your answers with draw appropriate molecular orbital energy diagram.
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- Work out the following problems:a. Will an H bond form between H3C—CH=O and H2O? Draw asimple figure to support your answer.b. Draw the following molecules and determine which are polar:Cl2, NH3, CH4.c. What is the pH of a solution with a concentration of0.00001 moles/ml (M) of H+?Work out the following problems: a. What is the pH of a solution with a concentration of0.00001 moles/ml (M) of OH−?b. Draw the atomic structure of magnesium and predict what kindsof bonds it will make.c. What kind of ion would you expect magnesium to make on thebasis of its valence?Consider these compounds: A. PbBr, B. MnS C. Ag,CO3 D. AIPO, Complete the following statements by entering the letter(s) corresponding to the correct compound(s). (If more than one compound fits the description, include all the relevant compounds by writing your answer as a string of characters without punctuation, e.g, ABC.) Without doing any calculations it is possible to determine that magnesium fluoride is more soluble than and magnesium fluoride is less soluble than| It is not possible to determine whether magnesium fluoride is more or less soluble than by simply comparing Kgp values.
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- The molecular weight of ethanol (CH3CH2OH) is46 and its density is 0.789 g/cm3.A. What is the molarity of ethanol in beer that is 5%ethanol by volume? [Alcohol content of beer varies fromabout 4% (lite beer) to 8% (stout beer).]B. The legal limit for a driver’s blood alcohol contentvaries, but 80 mg of ethanol per 100 mL of blood (usuallyreferred to as a blood alcohol level of 0.08) is typical. Whatis the molarity of ethanol in a person at this legal limit?C. How many 12-oz (355-mL) bottles of 5% beer coulda 70-kg person drink and remain under the legal limit? A70-kg person contains about 40 liters of water. Ignore themetabolism of ethanol, and assume that the water contentof the person remains constant.Benzene, C6H6, is an aromatic hydrocarbon that exists as a liquid at 298 K and 1 bar. The solubility of benzene in water, defined as the concentration of the saturated solution, is 2.23×10¬3 M at 298 K and 1 bar, and its standard Gibbs free energy of formation is AfG° (C6H6, ) = 124.3 kJ/mol. a. Calculate the standard Gibbs free energy change for the process of dissolution of benzene in water a. Find the chemical potential of the benzene solute standard state AFG° (C6H6, aq).(b) The first photoelectron band system of O2 (i.e. ionisation to the ground electronic state of O2) shows a limited vibrational progression, peaking at v = 1. The second photoelectron band system (i.e. ionisation to the first excited electronic state of O2) shows an extensive vibrational progression peaking at v= 8. What do these facts indicate about the nature of the two highest- occupied valence molecular orbitals of O2?
- A solution contains 0.25 M Ni(NO3)2 and 0.25 M Cu(NO3)2. A. Can the metal ions be separated by slowly adding Na2CO3 aq solution? Assume that for successful separation 99% of the metal ion must be precipitated before the other metal ion begins to precipitate, and assume no volume change on addition of Na2CO3 solution. Ksp of CuCO3 = 1.4 x10-10 Ksp of NiCO3 = 1.42X 10-7 B. If you need to redissolve the salt that was first precipitated, what pH will you use and why ? Write your answers in template provided. Upload your step by step solution for A.Calculate either [H3O+] or [OH¯] for each of the solutions at 25 °C. Solution A: [OH¯] = 1.43 × 10¯7 M; [H3O+] = Solution B: [H3O+] = 9.77 × 10-⁹ M; [OH¯] = Solution C: [H3O+] = 6.17 × 10−4 M; [OH¯] = Which of these solutions are basic at 25 °C? Solution A: [OH-] = 1.43 × 10¯7 M Solution B: [H₂O+] = 9.77 × 10-⁹ M Solution C: [H₂O+] = 6.17 × 10−4 M M M MThe atomic emission spectrum for a particular element includes blue-violet light with wavelength 440. nm. Calculate the energy in joules of this light given that E = h c/A, and h = 6.63 x 10-34Js, and c = 3.00 x 10°m/s. (h andc are constants, A is wavelength, convert nm into m) h c E =