Answer to Question #187627 in General Chemistry for kaela

Question

whats the concentration of hydrogen in bleach 

Answer 1

Bleaching agents designed for professional use only contain a high concentration of peroxides (30% to 40%), while the active ingredient of patient-applied (at-home) tooth bleachers, present at lower concentrations, are carbamide peroxide (10% to 20%) and hydrogen peroxide (3% to 7.5%)3.