ok, ive been trying to figure how to do this lab all weekend and just drew a blank

. my materials are: wellplates, un-marked solution bottles, and pH paper. the unknown solutions are NaCl, NaBr, NaOH, AgNO
3, and Pb(NO
3)
2. im supposed to figure out which solutions are in the un-marked bottles. any help is much appreciated (and needed

)
~thnx.