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water is considered a universal solvent because-select onea it can dissolve polar and non-polar compoundsb it can dissolve both positively and
which of the following is true about the properties of aqueous solutionsselect onea a ph change from 50 to 60 reflects an increase in the hydroxide
the greatest buffering capacity of weak acids is when-select onea they are almost completely dissociatedb they are almost completely undissociatedc
the henderson-hasselbalch equation expresses the ph of a solution asselect onea the equilibrium constant of the acid and the dissociated form of the
the aqueous solution with the lowest ph isselect onea 001 m hclb 01 m acetic acid pka 486c 01 m formic acid pka 375d 01 m hcle 10 to 12 m
the dominant bonds holding together non-polar compounds that are immersed in aqueous solution are and the forces that hold pure solutions of
if a person has a stomach ulcer that is aggravated by excessive hydrochloric acid hcl secretion why on earth would he or she be drinking milk to
the ph of a solution of 1 m hcl isselect onea 0b 01c 1d 10e negative
which of the following statements about buffers is trueselect onea a buffer composed of a weak acid of pka 5 is stronger at ph 4 than at ph 6b at ph
a virus capsid containing vimentin your protein of interest gets into the cell nucleus and is broken down with the dna being released it is unknown
you work with petunias and you have identified a single gene that causes their flowers to either be all pigmented solid or streaked with white
can you help explain this question in fairly simple terminologya certain sample of dna has a tm of 65oc while another has a tm of 58oc what can you
why is superoxide radical scavenging of beverages such red wine grape juice measured at 560
outline the importance of buffer systems in the human body in addition describe the main biological buffer systems and how they
yesterday when eric returned home from jogging he was breathing heavily sweating profusely and complained that his legs ached and felt weak he took a
suppose a sample of 200 microliters of blood needs to be diluted 150 how much diluents should be added and what will be the final volume show all
how many g of h2so4 does 600 ml of a 12 m solution of h2so4 contain please show all
the ph of urine can be quite variable whywhy is bromothymol blue used as a ph indicator instead of phenal red when titrating
after the virus capsid containing vimentin gets into the nucleus it is broken down and the dna is released whether capsid proteins are broken down
long-hair in cats is due to the recessive long-hair allelel black cats rather than tabbies are due to the recessive agouti allele a a long-haired
a solution was prepared by dissolving 25g naoh powder in 100 ml water using not more than 15 ml water devise a series of dilutions that will give a
you have a 1m kcl stock solution and a 85 mgml sulphuric acid stock solution how will you make a 200 ml single solution containing 20mm kcl and 18
independent assortment has which of the following effects on the inheritance of allelesaalleles on the same chromosome are not always inherited