B decays involving eta and eta' in light of the B->K eta' process

The observation by the CLEO Collaboration of the decays B-(+,B-0) --> K((+,0))eta' is shown to imply a significant but still uncertain contribution from the flavor-SU(3)-singlet component of the eta' By comparing the rate for these decays with others for decays of B mesons to two pseudoscalar mesons, it is shown that the prospects for observing CP-violating asymmetries in certain modes such as B+ --> pi(+)eta and B+ --> pi(+)eta' are quite good.