Chemistry concepts and calculations

Which of the following sets of quantum numbers are not allowed? For the sets tha

Which of the following sets of quantum numbers are not allowed? For the sets that are incorrect state what is wrong. For the sets that are correct, give the orbital designation (e…

Which of the following sets of quantum numbers could representthe \"last\" elect

Which of the following sets of quantum numbers could representthe "last" electron added to complete the electron configurationfor a ground state atom of Br according to the Aufbau…

Which of the following sets of varables when graphed will give a linear relation

Which of the following sets of varables when graphed will give a linear relationship with a positive slope when all other variables are held constant? (Choose all that are correct…

Which of the following shapes best describes the shape of the CO_2 molecule? lin

Which of the following shapes best describes the shape of the CO_2 molecule? linear bent tetrahedral trigonal planar What type of hybridization is involved in the carbon of carbon…

Which of the following should have the highest boiling point? CH4 CF4 CBr4 CCl4

Which of the following should have the highest boiling point? CH4 CF4 CBr4 CCl4 Cl4 Which of the following should have the lowest boiling point? C12H26 C10H22 C5H12 C6H14 Which of…

Which of the following should have the largest value of S degree? a) SF_6 (g) at

Which of the following should have the largest value of S degree? a) SF_6 (g) at 298K b) H_2O (l) at 298K c) He(g) at 298K d) CH_3OH (l) at 298K Which of these changes in the dist…

Which of the following should have the lowest viscosity at room temperature? Whi

Which of the following should have the lowest viscosity at room temperature? Which should have the greatest? Explain. ---Select--- has the strongest intermolecular forces because …

Which of the following shows the correct order for steps in the Fischer esterifi

Which of the following shows the correct order for steps in the Fischer esterification mechanism: A. proton transfer, nucleophilic attack, proton transfer, proton transfer, loss o…

Which of the following signs on q and w represent a system that is doing work on

Which of the following signs on q and w represent a system that is doing work on the surroundings, as well at losing heat to the surroundings? A. q = -, w = - B. q = +, w = + C. q…

Which of the following situations demonstrates the law of definite proportions?

Which of the following situations demonstrates the law of definite proportions? View Available Hint(s) Which of the following situations demonstrates the law of definite proportio…

Which of the following situations indicates a system reaching equilibrium? Which

Which of the following situations indicates a system reaching equilibrium? Which of the following situations indicates a system reaching equilibrium? a. A cup of hot water cools u…

Which of the following situations results in a spontaneous reaction? a. Entropy

Which of the following situations results in a spontaneous reaction? a. Entropy of the universe increases; free energy of the system decreases. b. Entropy of the universe decrease…

Which of the following situations would produce a Hill plot with n H < 1.0? Expl

Which of the following situations would produce a Hill plot with nH &lt; 1.0? Explain your reasoning in each case. (a) The protein has multiple subunits, each with a single ligand…

Which of the following solids would have the highest melting point? NaF NaCl NaB

Which of the following solids would have the highest melting point? NaF NaCl NaBr NaI The number of resonance structures for the nitrate ion that satisfy the octet rule is 1 2 3 4…

Which of the following solutes in aqueous solution would be expected to exhibit

Which of the following solutes in aqueous solution would be expected to exhibit the smallest freezing-point lowering (assuming ideal behavior)? 0.1 mNaCl 0.2 m CH_3COOH 0.05 m Al_…

Which of the following solutions is a good buffer system? A solution that is 0.1

Which of the following solutions is a good buffer system? A solution that is 0.10 M NaCl and 0.10 M HCl A solution that is 0.10 M HCN and 0.10 M LiCN A solution that is 0.10 M NaO…

Which of the following solutions result in a buffer ? a) 0.050 L of 0.250 M NH 3

Which of the following solutions result in a buffer ? a) 0.050 L of 0.250 M NH3 + 0.100 L of 0.250 M HCl b) 0.100 L of 0.250 M NH3 + 0.100 L of 0.250 MHCl c) 0.100 L of 0.250 M NH…

Which of the following solutions will have the highest boiling point? Hint: Reca

Which of the following solutions will have the highest boiling point? Hint: Recall that the magnitude of a colligative property is dependent on the number of particles in solution…

Which of the following solutions will have the highest boiling point? Hint: Reca

Which of the following solutions will have the highest boiling point? Hint: Recall that the magnitude of a colligative property is dependent on the number of particles in solution…

Which of the following solutions will have the lowest freezing point? a) 2.5 g o

Which of the following solutions will have the lowest freezing point? a) 2.5 g of KCl in 100 g water b) 2.5 g of NH4Cl in 100 g water c) 2.5 g of NaOH in 100 g water Which of the …

Which of the following solutions will result in the formation of a buffer? Pleas

Which of the following solutions will result in the formation of a buffer? Please Please help....thank you in advanced Which of the following solutions will result in the formatio…

Which of the following solutions would have the highest pH? Assume that they are

Which of the following solutions would have the highest pH? Assume that they are all 0.10 M in acid at 25 degree C. The acid is followed by its K_a value. A. HF, 3.5 times 10^-4 B…

Which of the following solutions would have the highest pH?Assume that they are

Which of the following solutions would have the highest pH?Assume that they are all 0.10 M in acid at 25o C. Theacid is followed by its Ka value. a) HCHO2, 1.8 x 10-4 b) HF, 3.5 x…

Which of the following solutions, containing different substances, would have th

Which of the following solutions, containing different substances, would have the HIGHEST boiling point? Solution 1 is made with 8.709 g of potassium sulfate in 250 ml of water. S…

Which of the following solutions, containing different substances, would have th

Which of the following solutions, containing different substances, would have the HIGHEST boiling point? Solution 1 is made with 8.709 g of potassium sulfate in 250 ml of water. S…

Which of the following solvent pair definitely cannot be used in a mixed-solvent

Which of the following solvent pair definitely cannot be used in a mixed-solvent recrystallization? acetic acid-water acetone-water ethanol-acetone ethanol-water none of the above…

Which of the following solvents would be the best choice to extract a slightly-p

Which of the following solvents would be the best choice to extract a slightly-polar organic compound from an aqueous solution? Explain why each of other solvents is less desirabl…

Which of the following species has a characteristic absorption at 3300 cm^-1 in

Which of the following species has a characteristic absorption at 3300 cm^-1 in its IR spectrum? (CH_3)2CHCCH) (CH_3)2CHN(CH_3)2 CH_3)2CHCCCH_3 (CH_3)2CHCH-CH_2 (CH_3)2CHCC&gt;2CH…

Which of the following species is amphoteric? CO_3^2^- HF NH_4^+ HPO_4^2^- None

Which of the following species is amphoteric? CO_3^2^- HF NH_4^+ HPO_4^2^- None of the above are amphoteric. A 0.20 M sodium chlorobenzoate (NaC_7H_4CIO_2) has a pH of 8.62. Calcu…

Which of the following species is the best mucleophile in methanol? CH S CHO NH,

Which of the following species is the best mucleophile in methanol? CH S CHO NH, 7. In the Sollowing reaction, which base most favors the anti-Zaitsev product? C. . Which of the f…

Which of the following species is the weakest acid? HA (Ka = 10^-2) HB (Ka = 10^

Which of the following species is the weakest acid? HA (Ka = 10^-2) HB (Ka = 10^-4) HC (Ka = 10^-6) HD (Ka = 10^-8) When delta G^_rxn is less than zero, the value of K is less tha…

Which of the following species is the weakest acid? HA (Ka = 10^-2) HB (Ka = 10^

Which of the following species is the weakest acid? HA (Ka = 10^-2) HB (Ka = 10^-4) HC (Ka = 10^-6) HD (Ka = 10^-8) When delta G_rxn^0 is less than zero, the value of K is less th…

Which of the following species is/ are named correctly? A. Co(NH3)5NO22+ Pentaam

Which of the following species is/ are named correctly? A. Co(NH3)5NO22+    Pentaaminenitrocobal (II)ion B. K2[PtCl4]    Potassiumtetrachloroplatinate (II) C. [Fe(CN)6]4-    Penta…

Which of the following species represents an exception to the octet rule? PCI_3

Which of the following species represents an exception to the octet rule? PCI_3 HBr CO_2 SiO_2 SF_4 Which of the following statement is true? The triple bond in N_2 has a larger b…

Which of the following species would be considered an intermediate?_____ In a he

Which of the following species would be considered an intermediate?_____ In a heterogeneous reaction, why are the concentrations of solids not included in the equilibrium constant…

Which of the following statement about electronic spectroscopy is not correct? (

Which of the following statement about electronic spectroscopy is not correct? (A)There are no vibrational selection rules in electronic transitions, so any delta v is possible. (…

Which of the following statement about entropy are type? (A) The entropy of an i

Which of the following statement about entropy are type? (A) The entropy of an isolated system will tend to increase to a maximum value. (B) The entropy of a biology system always…

Which of the following statement about mass spectroscopy is incorrect? a. MS ion

Which of the following statement about mass spectroscopy is incorrect? a. MS ionizes the sample and then measures the time it takes for the ions to reach the detector. b. SELDI-MS…

Which of the following statement about the bonds in the reactants and products i

Which of the following statement about the bonds in the reactants and products in most accurate? (A) The sum of the bond enthalpies of the bonds in the reactant is greater than th…

Which of the following statement about voltaic and electrolytic cells is correct

Which of the following statement about voltaic and electrolytic cells is correct? The electrons in the external wire from cathode to anode in both types of cell. Oxidation occurs …

Which of the following statement best describes the net energy flow in the biosp

Which of the following statement best describes the net energy flow in the biosphere? A living organism is a system in which, overall, free energy is conserved. An individual orga…

Which of the following statement best explains the vibrational stretc described

Which of the following statement best explains the vibrational stretc described above (use only the ranges provided) for inorganic molecules based on the data above. Based on the …

Which of the following statement is FALSE? At pseudo-steady state diffusion, the

Which of the following statement is FALSE? At pseudo-steady state diffusion, the level of liquid or the diameter of napthalene ball changes fast None of the above At pseudo-steady…

Which of the following statement is NOT true about liquid chromatography? Among

Which of the following statement is NOT true about liquid chromatography? Among the four modes of LC separations we discussed in the class, size exclusion chromatography is the on…

Which of the following statement is WRONG? A. Base isolation has been used in de

Which of the following statement is WRONG? A. Base isolation has been used in designing earthquake resistant building in California B. Active seismic control systems are more wide…

Which of the following statement is false? Answer A. Generally, the Debye Huecke

Which of the following statement is false? Answer A. Generally, the Debye Hueckel equation can be applied to solutions of ionic strength above 0.1. B. Debye and Hueckel provided a…

Which of the following statement is false? Answer A. Generally, the Debye Huecke

Which of the following statement is false? Answer A. Generally, the Debye Hueckel equation can be applied to solutions of ionic strength above 0.1. B. Debye and Hueckel provided a…

Which of the following statement is not true? A molecule that is superimpossible

Which of the following statement is not true? A molecule that is superimpossible on its mirror image is said to achiral. A molecule that is not superimpossible on its mirror image…

Which of the following statement is true about the compounds shown below? I is m

Which of the following statement is true about the compounds shown below? I is more basic and more nucleophilic than II. I is less basic and less nucleophilic than II. I is more b…

Which of the following statement is true regarding the paramagnetic property of

Which of the following statement is true regarding the paramagnetic property of O2molecule and the diamagnetic property of N2? A. The electronic configuration using the molecular …