Chemistry concepts and calculations

Which of the following could be removed from the membrane without using a deterg

Which of the following could be removed from the membrane without using a detergent? Question 9 options: A) integral membrane protein B) peripheral membrane protein C) glycoprotei…

Which of the following could be the equilibrium constant for the dissociation of

Which of the following could be the equilibrium constant for the dissociation of HNO2 in water? circle one: K= 1.5 K = 3.8 × 106 K = 4.6 × 10-4 Explain why you chose that equilibr…

Which of the following could be used to formulate 100 mls of a 0.10 M acetate bu

Which of the following could be used to formulate 100 mls of a 0.10 M acetate buffer (pK=4.76) at pH 5 if you start with 64 mls of 0.10 M sodium acetate? 34 mls of 0.10 M HCl 3.6 …

Which of the following could be used to formulate 100 mls of a 0.10 M acetate bu

Which of the following could be used to formulate 100 mls of a 0.10 M acetate buffer (pK=4.76) at pH 5 if you start with 64 mls of 0.10 M sodium acetate? 34 mls of 0.10 M HCl 3.6 …

Which of the following could be used to synthesize 1-bromopentance> CH2CH2CH2CH2

Which of the following could be used to synthesize 1-bromopentance> CH2CH2CH2CH2CH2Oh + NaBr rightarrow CH2CH2CH2CH=CH2 + HBr rightarrow CH2CH2CH2CH=CH2 + Br2 rightarrow CH2CH2…

Which of the following could be used to synthesize 1-bromopentance> CH2CH2CH2CH2

Which of the following could be used to synthesize 1-bromopentance> CH2CH2CH2CH2CH2Oh + NaBr rightarrow CH2CH2CH2CH=CH2 + HBr rightarrow CH2CH2CH2CH=CH2 + Br2 rightarrow CH2CH2…

Which of the following could cause real solutions to deviate from Beer\'s Law* A

Which of the following could cause real solutions to deviate from Beer's Law* At high concentrations, ions or molecules in solutions might be close enough together to interfere wi…

Which of the following could possibly be the voltage of the electric outlet on t

Which of the following could possibly be the voltage of the electric outlet on the wall at your home? 0.8 volts 3.6 volts 110 volts 60 Hz When charging your cell phone, normally y…

Which of the following criteria meet the requirements to achieve and maintain an

Which of the following criteria meet the requirements to achieve and maintain an adequate isocratic HPLC separation? A researcher used HPLC to examine a bicomponent mixture contai…

Which of the following cycloalkanes has the most angle strain? O A O D QUESTION

Which of the following cycloalkanes has the most angle strain? O A O D QUESTION 8 Which of the following statements best explains the information we can gain from infrared spectro…

Which of the following cycloalkanes has the smallest heat of combustion per CH_2

Which of the following cycloalkanes has the smallest heat of combustion per CH_2 group? cyclopropane cyclobutene cyclopentane cyclohexane cycloheptane Which of the following state…

Which of the following declarations are valid? class Base { ... } interface Spec

Which of the following declarations are valid? class Base { ... } interface Spec { ... } class Derived extends Base implements Spec { } Question 15 options: Derived object2 = new …

Which of the following definitions best describes the term triple point? In equi

Which of the following definitions best describes the term triple point? In equilibrium with the liquid phase, the pressure exerted by a gas A specific temperature and pressure at…

Which of the following demonstrates the unnatural, or man-made destruction of oz

Which of the following demonstrates the unnatural, or man-made destruction of ozone? A single O atom combines with an O2 molecule to form Ozone. A ClO molecule gives up its O to a…

Which of the following describe the correct order food travels through the diges

Which of the following describe the correct order food travels through the digestive system? a. mouth, esophagus, stomach, small intestine, large intestine, anus b. anus, large in…

Which of the following describe the element Li. Reacts vigorously with alkali me

Which of the following describe the element Li. Reacts vigorously with alkali metals to form salts forms a basic solution in water is found in nature only combined with other elem…

Which of the following describes 44.0 g of propane, C_3H_8? (Select all that app

Which of the following describes 44.0 g of propane, C_3H_8? (Select all that apply) A. The amount of propane that contains 1.0 g of hydrogen. B. One mole of propane. C. The amount…

Which of the following describes a mechanism that enzymes use to achieve their r

Which of the following describes a mechanism that enzymes use to achieve their rate enhancement of reactions? Which of the following describes a mechanism that enzymes use to achi…

Which of the following describes a mechanism that enzymes use to achieve their r

Which of the following describes a mechanism that enzymes use to achieve their rate enhancement of reactions? Which of the following describes a mechanism that enzymes use to achi…

Which of the following describes competitive inhibition? A) Addition of more sub

Which of the following describes competitive inhibition? A) Addition of more substrate cannot reverse inhibition B) Inhibitor has a structure different to substrate. C) inhibitor …

Which of the following describes the compound SF 4 ? Choose all answers that app

Which of the following describes the compoundSF4? Choose all answers that apply. The compound is molecular. The compound would be expected to have arelatively high melting point. …

Which of the following describes the element Br ? Choose all that apply. A. cons

Which of the following describes the element Br? Choose all that apply. A. consists of diatomic molecules in elemental form B. is very reactive as a metal C. reacts vigorously wit…

Which of the following descriptions MUST apply in order for a molecule or ion to

Which of the following descriptions MUST apply in order for a molecule or ion to be a good electrophile has a positive charge contains a positively charged atom can donate electro…

Which of the following descriptions MUST apply in order for a molecule or ion to

Which of the following descriptions MUST apply in order for a molecule or ion to be a good electrophile has a positive charge contains a positively charged atom can donate electro…

Which of the following descriptions and/or equations best represent the enthalpy

Which of the following descriptions and/or equations best represent the enthalpy change of a system? There may be more than one correct answer. The sum of the internal energy and …

Which of the following descriptions are correct about the “equivalence point” an

Which of the following descriptions are correct about the “equivalence point” and the “end point”? correct incorrect  The equivalence point is the same as the end point. correct i…

Which of the following descriptions bestclassifies milk? 1) homogeneous solution

Which of the following descriptions bestclassifies milk? 1) homogeneous solution ofcompounds 2) heterogeneous mixture ofcompounds 3) heterogeneous mattercomposed of pure elements …

Which of the following descriptions of a subatomic particle iscorrect? I answere

Which of the following descriptions of a subatomic particle iscorrect? I answered A is this correct? a. A proton has a positive charge and a mass of approximately1 amu. b. An elec…

Which of the following designations could be used to describe the orbital below:

Which of the following designations could be used to describe the orbital below: infinity a. 2s b- 1Py C-4dy, d 3px e. 5fxyz 5. How many orbitals are possible when n = 3? a. 0 b. …

Which of the following determines the rate at which a star generates energy in i

Which of the following determines the rate at which a star generates energy in its core when it is on the main sequence?        Nuclear reaction efficiency.         Electromagneti…

Which of the following diatomic molecules has the highest boiling point? H_2 N_2

Which of the following diatomic molecules has the highest boiling point? H_2 N_2 O_2 Br_2 Which of the following is true for the reaction of sodium metal and chlorine gas? electro…

Which of the following dienes is the most reactive in a normal Diels-Alder react

Which of the following dienes is the most reactive in a normal Diels-Alder reaction? 6. A. B. C. 7. Which of the following is NOT required for a compound to be aromatic? A. 4n+2 e…

Which of the following dienes is the most reactive in a normal Diels-Alder react

Which of the following dienes is the most reactive in a normal Diels-Alder reaction? 6. A. B. C. 7. Which of the following is NOT required for a compound to be aromatic? A. 4n+2 e…

Which of the following do you need to know to be able to calculate the molarity

Which of the following do you need to know to be able to calculate the molarity of a salt solution? The molar mass of the salt added The molar mass of the salt. The volume of wate…

Which of the following do you need to know to be able to calculate the molarity

Which of the following do you need to know to be able to calculate the molarity of a slat solution? Which of the following will occur when aqueous solutions of zinc(II) bromide an…

Which of the following does NOT describe semiconductors? Their band gaps are bet

Which of the following does NOT describe semiconductors? Their band gaps are between metals and insulators Doped p-type and n-type semiconductors are more conductive than semicond…

Which of the following does NOT share the same empirical formula as the others?

Which of the following does NOT share the same empirical formula as the others? a. formaldehyde, CH_2O b. butyric acid, CH_3CH_2CH_2COOH c. lactic acid, CH_3CH(OH)COOH d. glucose,…

Which of the following does not contribute to the spontaneous nature of the prot

Which of the following does not contribute to the spontaneous nature of the protein folding process? formation of hydrogen bonds and electronic interactions loss of translational …

Which of the following does not describe a nuclear fission reaction? The number

Which of the following does not describe a nuclear fission reaction? The number of nucleons in the products is different from the number of nucleons in the starting material. The …

Which of the following does not describe a process in human sexual reproduction?

Which of the following does not describe a process in human sexual reproduction? Select one: a. A cell with 46 chromosomes forms sperm cells in males and egg cells in females. b. …

Which of the following does not have a uniform composition throughout? A) Compou

Which of the following does not have a uniform composition throughout? A) Compound B) Homogeneous mixture C) Heterogeneous mixture D) Solvent E) Element The mass of a sample is 55…

Which of the following does not obey the octet (or duet) rule? Question 12 optio

Which of the following does not obey the octet (or duet) rule? Question 12 options: A) CH2O B) CCl4 C) SiF4 D) XeF4 E) HCCH (where the carbons are bonded to each other) I'm thinki…

Which of the following does not obey the octet (or duet) rule? Question 12 optio

Which of the following does not obey the octet (or duet) rule? Question 12 options: A) CH2O B) CCl4 C) SiF4 D) XeF4 E) HCCH (where the carbons are bonded to each other) I'm thinki…

Which of the following does not occur at the boiling point of an organic compoun

Which of the following does not occur at the boiling point of an organic compound? The atmospheric pressure decreases The temperature of the liquid can not increase any further Th…

Which of the following does not represent a physical property? a. color b. densi

Which of the following does not represent a physical property? a. color b. density c. flammability d. mass e. melting point Which of the following is a metal? a. C b. Na c. Ne d. …

Which of the following does not show a correct relationship between units? a. 10

Which of the following does not show a correct relationship between units? a. 1000 grams = 1 kilogram b. 1 gigabyte = 1 times 10^9 bytes c. 1 nanometer = 1 times 10^-9 meters d. 1…

Which of the following effects are primarily responsible for determining the ord

Which of the following effects are primarily responsible for determining the order of acidities in the following sets of molecules.   HF; CH4; H2O; NH3 H2O, H2S, H2Se, H2Te CH3OH,…

Which of the following electron configuration is NOT possible? 29. Water is: (a)

Which of the following electron configuration is NOT possible? 29. Water is: (a) a polar compound (b) an ionic compound (c) a non--polar compound (d) a coordinate covalent compoun…

Which of the following electron configuration is NOT possible? 29. Water is: (a)

Which of the following electron configuration is NOT possible? 29. Water is: (a) a polar compound (b) an ionic compound (c) a non--polar compound (d) a coordinate covalent compoun…

Which of the following electron configurations correspond toan excited state? Id

Which of the following electron configurations correspond toan excited state? Identify the atoms and write the ground-stateelectron configuration where appropriate. a. 1s22s23p1 b…