C/P FL1BP

Question 1

eqn to calculate molar concentration

Answer 1

the formula for calculating molar concentration is (g)(% dissolved). then the answer can be found by dividing this number by the molar mass of the substance, and dividing that by 100 g/mol.

Question 2

why does ice float

Answer 2

water is least dense at 0C. so below 4c water molecule separate to maximize h bonding interactions. this lowers density and this is why ice floate. max density is at 4C for water

Question 3

charges of gamma, alpha and beta particles

Answer 3

gamma- 0,0
beta- 0,-1
alpha- 4,2

Question 4

properties of chiral carbons (2)

Answer 4

must b sp3 hybrizied and be attached to 4 diff things

Question 5

eqn for formal charge

Answer 5

use eqn #valence e- (bonding e/2) - nonbonding e. so for ox: 6-6/2-2 =+1

Question 6

lialh4 and kmno4- what does each do

Answer 6

l reduces, k oxidizes

Question 7

where do disulfide linkages form btwn

Answer 7

cysteine residues

Question 8

which way does light entering a dense medium bend? entering a lighter medium?

Answer 8

towards the normal, away from the normal

Question 9

what are the purines in dna/rna

Answer 9

a,g

Question 10

pyrimidines in dna/rna

Answer 10

c,u,t

Question 11

how many h bonds form btwn a and t

Answer 11

2

Question 12

how many h bonds form btwn c and g

Answer 12

3

Question 13

do purines and pyrims in dna/rna usually go tg or is it with their own kind

Answer 13

purines and pyrims