Strong bases - Study guides, Class notes & Summaries

Briefly explain how the base pairs A-T and C-G bond to each other and why the interactions they form are important to DNA unwinding. Base pairs form hydrogen bonds to each other. G and C form 3 hydrogen bonds, while A and T form 2 hydrogen bonds. These hydrogen bonds are weak electrostatic interactions that are able to hold the DNA together but are easily broken for the DNA to unwind. Why are telomerase inhibitors an attractive prospect for cancer therapies? >90% of cancer cells expres...

Acids and bases are usually demoted as strong or weak, what's the difference? - Answer-- Strong acids and bases - reaction with water is approximately 100% - Weak acids and bases - reaction with water is much less than 100% What does acid and base strength not dictate? - Answer-Acid or base strength is not a measure of concentration What are some examples of strong acids? - Answer-HNO3, HCl, H2SO4 and HClO4 are strong acids What are electrolytes and what's the connection to acids? - Ans...

Electron configuration for cations - Answer-Subtract 1 from exponent of highest n-value orbital (ex. remove from 4s before 3d) Ag+ = [Kr]5s^1 4d^9 Electron configuration for anions - Answer-Add 1 to closest orbital Cl- = [Ne]3s^2 3p^6 Atomic orbitals - Answer-s, p, d, f Primary vs secondary structures of proteins - Answer-Primary - AA chain (linked by peptide bonds) Secondary - stabilized by non-covalent bonds (alpha helices & beta sheets) Most bonds in organic compounds are - Answer-cov...

CHEM 129 EXAM 3 Questions With 100% Correct Answers Acids and bases are usually demoted as strong or weak, what's the difference? - answer- Strong acids and bases - reaction with water is approximately 100% - Weak acids and bases - reaction with water is much less than 100% What does acid and base strength not dictate? - answerAcid or base strength is not a measure of concentration What are some examples of strong acids? - answerHNO3, HCl, H2SO4 and HClO4 are strong acids What are ele...

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100 Biochemistry Exam 1 Questions with correct answers. Graded A Document Content and Description Below 100 Biochemistry Exam 1 Questions with correct answers Which of the following is found in RNA but not DNA A) Uracil B) Guanine C) Deoxyribose D) Phosphate E) Adenine >>>>Uracil Which of the fo llowing amino acids exhibits significant ultraviolet absorption above 250 nm? A) Alanine B) Tyrosine C) Methonine D) Glycine E) All of the above >>>>Tyrosine Collagen fibers hav...

CHEM 210 Exam 1 Review Questions With Accurate Solutions What is a BL acid? BL base? - ANSWERAcid is a proton donor while a base is proton acceptor List the 6 strong acids - ANSWERHClO4, HCl, HBr, HI, HNO3, H2SO4 List the 6 strong bases - ANSWERLiOH, NaOH, KOH, Ca(OH)2, Sr(OH)2, Ba(OH)2 What is the eq. for the dissociation of a weak acid? - ANSWERHA <=> H+ + A- Ka = ([H+][A-])/[HA] What is the eq. for base hydrolysis? - ANSWERB + H2O <=> BH+ + OH- Kb = ([BH+][OH...

What is a BL acid? BL base? - ANSWERAcid is a proton donor while a base is proton acceptor List the 6 strong acids - ANSWERHClO4, HCl, HBr, HI, HNO3, H2SO4 List the 6 strong bases - ANSWERLiOH, NaOH, KOH, Ca(OH)2, Sr(OH)2, Ba(OH)2 What is the eq. for the dissociation of a weak acid? - ANSWERHA <=> H+ + A- Ka = ([H+][A-])/[HA] What is the eq. for base hydrolysis? - ANSWERB + H2O <=> BH+ + OH- Kb = ([BH+][OH-])/[B] What is the equation for pH and pOH? - ANSWERpH =...

Electron configuration for cations - CORRECT ANSWER Subtract 1 from expo-nent of highest n-value orbital (ex. remove from 4s before 3d) Ag+ = [Kr]5s^1 4d^9 Electron configuration for anions - CORRECT ANSWER Add 1 to closest orbital Cl- = [Ne]3s^2 3p^6 Atomic orbitals - CORRECT ANSWER s, p, d, f Primary vs secondary structures of proteins - CORRECT ANSWER Primary - AA chain (linked by peptide bonds) Secondary - stabilized by non-covalent bonds (alpha he...

Fraction of Dissociation - correct answers the fraction of the acid in the conjugate base form (A-). [A-] / [A-]+[HA] or [A-]/F Fraction of Association - correct answers the fraction of the base in the conjugate acid form [BH+]. [BH+] / [BH+]+[B] or [BH+]/F Strong Acids - correct answers HClO4, H2SO4, HNO3, HCl, HI, HBr Strong Bases - correct answers LiOH, NaOH, KOH, RbOH, CsOH Ca(OH)2, Mg(OH)2, Ba(OH)2, Sr(OH)2 What should I do if I have a dilute strong acid or base? (10e-6<F...