Chemistry, 16.10.2020 08:01 nautiannaharper59901
Name three intermolecular forces that stabilize the structure of DNA, and explain how they act.
a. Nitrogen bases form ion-dipole bonds to their complementary bases.
b. flat, N-containing bases stack above each other, allowing for interaction through dispersion forces.
c. sugar-phosphate chains stack above each other, allowing for interaction through dispersion forces.
d. nitrogen bases form hydrogen bonds to their complementary bases nitrogen bases interact with their complementary bases through dispersion forces.
e. flat, N-containing bases stack above each other, forming ion-dipole bonds to aqueous surroundings
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Answer asap need it by wednesday morning carry out the following calculations on ph and ka of from data. i. calculate the ph of 0.02m hcl ii. calculate the ph of 0.036m naoh iii. calculate the ph of 0.36m ca(oh)2 iv. calculate the ph of 0.16m ch3cooh which has ka = 1.74 x 10-5 mol dm-3 v. calculate ka for weak acid ha which has a ph of 3.65 at 0.30m concentration vi. calculate the ka of a solution made by mixing 15.0 cm3 0.2m ha and 60.0 cm3 0.31m a-. [ph= 3.80] vii. calculate the ph of a solution made by mixing 15.0 cm3 0.1m naoh and 35.0 cm3 0.2m hcooh. [ka = 1.82 x 10-4 m]
Answers: 1
Name three intermolecular forces that stabilize the structure of DNA, and explain how they act.
a....
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