To prepare a buffer solution with a pH of 4.1, which acid should be used? glycine: pka = 2.35
benzoic acid: pka = 4.19
hydrobromous: pKa = 8.7

14. complete and balance the equations for the single displacement reactions. a. zn + pb(no3)2 -> b. al + niso4 -> 15. complete and balance the equations for the double displacement reactions. a. agno3(aq) + nacl(aq) -> b. mg(no3)2(aq) + koh(aq) -> 16. complete and balance the equations for the combustion reactions. a. __ ch4 + o2 -> b. __ c3h6 + o2 -> c. + o2 ->

What element breaks down into yttrium-90?

The number of moles of a given mass of a substance can be found without knowing its molecular formula or molar mass. true false