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Chemistry concepts and calculations

117302 questions • Page 2023 / 2347

Which of the following compounds is expected to have the HIGHEST boiling point (
Which of the following compounds is expected to have the HIGHEST boiling point (bpt? CH_3OCH_3 CH_3CH_2OH CH_3CH_2CH_2CH_3 CH_3CH_2CH_3 CH_3Cl CH_3OCH_3 This molecule displays dip…
Which of the following compounds is insoluble in water? Which of the following i
Which of the following compounds is insoluble in water? Which of the following is weak base? What is the oxidation state of C in HCO2H? 27. Which of the following metals is capabl…
Which of the following compounds is least soluble in water A) acetone B) propana
Which of the following compounds is least soluble in water A) acetone B) propanal C) ethanol D) heptanal E) formaldehyde (CH2O) Which reagent is the best choice for the synthesis …
Which of the following compounds is most basic? Which of the following solvents
Which of the following compounds is most basic? Which of the following solvents can be used with N_aNH_2? CH_3CH_2OH CH_3OH H_2O Liquid NH_3 What is a cation? a negatively chained…
Which of the following compounds is most soluble in pure water at 25 degrees Cel
Which of the following compounds is most soluble in pure water at 25 degrees Celsius A. Ca(OH)2 (Ksp=4.68x10^-6) B. BaSO4 (Ksp=1.07x10^-10) C. Zn3(PO4)2 (Ksp=9.00x10^-33) D. Fe(OH…
Which of the following compounds is the strongest Bronsted-lowry base? Which of
Which of the following compounds is the strongest Bronsted-lowry base? Which of the following compounds has the highest melting point? What statement does not accurately describe …
Which of the following compounds is the strongest acid? Which of the following c
Which of the following compounds is the strongest acid? Which of the following compounds is the weakest acid? Which of the following species is the strongest base? Which of the fo…
Which of the following compounds is the strongest acid? m-methoxybenzoic acid wa
Which of the following compounds is the strongest acid? m-methoxybenzoic acid water p-bromobenzoic acid p-nitrobenzoic acid m-methylbenzoic acid Select the compound that is produc…
Which of the following compounds is y-butyrolactone? A) I B) II C) III D) IV E)
Which of the following compounds is y-butyrolactone? A) I B) II C) III D) IV E) V 21. Give the name of the structure. A) amino propanoate B) ammonium butanoate C) amino butanoate …
Which of the following compounds will be more soluble in acidic solution than in
Which of the following compounds will be more soluble in acidic solution than in pure water? A. KNO_2 B. Fel_3 C. Ni(NO_3)2 D. None of the listed compounds will be more soluble in…
Which of the following compounds will be the most soluble in diethylether? Benzo
Which of the following compounds will be the most soluble in diethylether? Benzoin acid H2o Sucrose Hexane None of the above I thought the answer is hexane but the teacher marked …
Which of the following compounds will be the most soluble in diethylether? a) Be
Which of the following compounds will be the most soluble in diethylether? a) Benzoic acid b)H20 c) Sucrose d)Hexane e) None of the above Why are organic reactions slower than mos…
Which of the following compounds will display a singlet a triplet and a quartet
Which of the following compounds will display a singlet a triplet and a quartet in the 'H NMR spectrum? 2-chloro-4-methylpemtane 3-chloro - 3- methylpentane 3-ohloropentane 1 - ch…
Which of the following compounds will display five signals in the C NMR spectram
Which of the following compounds will display five signals in the C NMR spectram? I II III IV none of the above Anisole is the common name for: Hydroxybenzene aminobenzne methoxyb…
Which of the following compounds will give a molecular ion having m/z = an odd n
Which of the following compounds will give a molecular ion having m/z = an odd number? CH_3 CH_2 OH A. CH_2 H_3 CI B. CH_3 CO_2 H C. CH_3 CH_2 NH_2 D. (CH)_2 NCH_2 C = N Which of …
Which of the following compounds will have the highest molar solubility in pure
Which of the following compounds will have the highest molar solubility in pure water? A) MgC_2O_4, K_sp = 8.5 times 10^-5 B) CuCN, K_sp = 3.2 times 10^-20 C) Agl, K_sp = 8.5 time…
Which of the following compounds will show an optical rotation when a sample of
Which of the following compounds will show an optical rotation when a sample of the compound is placed in a polarimeter? (A) cyclohexane (B) R-2-butanol (C) racemic 2-butanol (D) …
Which of the following compounds will undergo Friedel-Crafts alkylation with (CH
Which of the following compounds will undergo Friedel-Crafts alkylation with (CH3&CC1;, AICI3 most rapidly? acetophenone iodobenzene toluene cyan benzene benzenesulfonic acid …
Which of the following compounds would be expected to be significantly more solu
Which of the following compounds would be expected to be significantly more soluble in acidic solution than in neutral solution? possible answers please show work and explain: FeS…
Which of the following compounds would be expected to have the HIGHEST boiling p
Which of the following compounds would be expected to have the HIGHEST boiling point? CaF_2 KF CsF H_2O CF_4 Which bonding interaction best describes the intermolecular forces in …
Which of the following compounds would most likely be soluble in benzene (C6H6)
Which of the following compounds would most likely be soluble in benzene (C6H6) ? Select all that apply A. Acetic acid, CH3COOH B. Propylchloride, CH3CH2CH2Cl C. Glycerol, CH2OHCH…
Which of the following compounds, will have odd m/z value for the molecular ion?
Which of the following compounds, will have odd m/z value for the molecular ion? I II III IV none of the above Compounds containing chlorine or bromine usually show a strong peak.…
Which of the following concerning a barometer or manometer is/are true? Pressure
Which of the following concerning a barometer or manometer is/are true? Pressure is directly proportional to the height of the liquid used in the device. Pressure is directly prop…
Which of the following concerning o and bonds is/are correct? Sigma bonds may on
Which of the following concerning o and bonds is/are correct? Sigma bonds may only be formed from unhybridized orbitals. Pi bonds are formed from unhybridized p orbitals. A pi bon…
Which of the following concerning the ideal gas law is/are true? 1) Pressure is
Which of the following concerning the ideal gas law is/are true? 1) Pressure is directly proportional to volume when temperature and moles of gas are held constant 2) Pressure is …
Which of the following concerning the topic of concentration is/are incorrect? A
Which of the following concerning the topic of concentration is/are incorrect? A concentrated solution of hydrochloric add has a molarity of 12 M This means that 12 moles of HCI a…
Which of the following conclusions can be made from experimental observations? a
Which of the following conclusions can be made from experimental observations? a) Every clear liquid is colorless b) The ratio of nitrogen to oxygen in a particular molecule c) Al…
Which of the following conditions is the most likely cause of metabolic alkalosi
Which of the following conditions is the most likely cause of metabolic alkalosis? Diabetic ketoacidosis. Hyperventilation Respiratory Depression Excessive Sodium Bicarbonate ther…
Which of the following conditions would always result in a decrease in the inter
Which of the following conditions would always result in a decrease in the internal energy of a system? The system gains heat and does work on the surroundings. The system loses h…
Which of the following consists of only polar aprotic solvents? a) water, hexane
Which of the following consists of only polar aprotic solvents? a) water, hexane, methanol b) acetic acid, DMF, toluene c) DMSO, ethanol, acetonitrile d) DMF, acetonitrile, DMSO I…
Which of the following contains an atom that is not obeyingthe octet rule? A)Pot
Which of the following contains an atom that is not obeyingthe octet rule? A)Potassium bromide (KBr) B)Carbon dioxide (CO2) C)Chlorine trifluoride (ClF3) D)Iodine chloride (ICl) 2…
Which of the following contains the highest percentage of cholesteryl esters? Ch
Which of the following contains the highest percentage of cholesteryl esters? Chylomicrons VLDL LDL HDL None of the above contain any cholesteryl esters The enzyme that attaches a…
Which of the following contains the smallest number of molecules. 1g H2O 1g NH3
Which of the following contains the smallest number of molecules. 1g H2O 1g NH3 1g H2 1gO2 All are the same Chapter 5 Exercises (You may use a periodic table as needed.) I. If a s…
Which of the following correctly describes a chromosome? The location inside the
Which of the following correctly describes a chromosome? The location inside the cell where protein synthesis occurs. A segment of a DNA molecule that codes for a specific protein…
Which of the following correctly describes intermediates and transition states?
Which of the following correctly describes intermediates and transition states? Answer(s): a. An intermediate is always higher in energy than the substrate from which it came. b. …
Which of the following correctly describes one or more of the differences betwee
Which of the following correctly describes one or more of the differences between a strong and weak electrolyte? A strong electrolyte partially ionizes in solution and a weak elec…
Which of the following correctly describes the relative nucleophilicities of met
Which of the following correctly describes the relative nucleophilicities of methoxide and tertbutoxide? A) These alkoxides have essentially the same nucleophilicities since the n…
Which of the following correctly describes the sequence of structures of the pul
Which of the following correctly describes the sequence of structures of the pulmonary circulation through which blood passes? left atrium ?pulmonary trunk?pulmonary veins?pulmona…
Which of the following correctly describes what happens when the temperature of
Which of the following correctly describes what happens when the temperature of a chemical reaction is increased? Not: assume that the mechanism for the reaction does not change. …
Which of the following correctly describes why the behavior of a real gas deviat
Which of the following correctly describes why the behavior of a real gas deviates from an ideal behavior? At high pressures the volume of gas particles becomes important, and at …
Which of the following correctly identifies the electron group geometry for each
Which of the following correctly identifies the electron group geometry for each of the following structures?    a = tetrahedral, b = tetrahedral, c = tetrahedral, d = tetrahedral…
Which of the following correctly orders oxidation levels? CH_3CH_2NH_2 > CH_3 =
Which of the following correctly orders oxidation levels? CH_3CH_2NH_2 > CH_3 = N CH_2CH_3CH_3 > CH_3C = CN CH_2CH_2CO_3H > CH_2CH_2OH (CH_3)_2C = O > CH_3CH_2CO_3H. W…
Which of the following correctly reflects relative stabilities of carbocations?
Which of the following correctly reflects relative stabilities of carbocations? 3 degree allylic > 2 degree > 1 degree benzylic methyl > 2 degree benzylic > 3 degree 3…
Which of the following correctly shows the oxidation numbers for each of the ele
Which of the following correctly shows the oxidation numbers for each of the elements in H2PO4?, I2, and Al(OH)4?? a) H2PO4?: H = +1, P = +5, O = ?2; I2 : I = 0; Al(OH)4? : Al = +…
Which of the following correctly states an essential step in the function of het
Which of the following correctly states an essential step in the function of heterotrimeric G protein function? Binding of a hormone to a receptor must signal the exchange of GDP …
Which of the following correctly summarizes the exact relationships between the
Which of the following correctly summarizes the exact relationships between the SN values of 2 to 6, the hybrid orbital names, and the predicted geometries for molecules that have…
Which of the following correctly summarizes the exact relationships between the
Which of the following correctly summarizes the exact relationships between the SN values of 2 to 6, the hybrid orbital names, and the predicted geometries for molecules that have…
Which of the following corresponds to the diagnostic region on an IR spectrum? 1
Which of the following corresponds to the diagnostic region on an IR spectrum? 1500-4000cm^-1 400-4000cm^-1 400-1500cm^-1 1500-2500 cm^-1 none of the above For the following react…
Which of the following could be added to a solution of acetic acid to prepare a
Which of the following could be added to a solution of acetic acid to prepare a buffer? sodium acetate sodium hydroxide nitric acid hydrofluoric acid sodium acetate only sodium ac…
Which of the following could be added to a solution of sodium acetate to produce
Which of the following could be added to a solution of sodium acetate to produce a buffer? why acetic acid hydrochloric acid potassium acetate sodium chloride A) acetic acid only …