Equilíbrio Acido Base Parte 1

1) What is the pH of a solution: a) 0.040 mol/L HClO4 b) 0.028 mol/L NaOH c) 0.0011 mol/L Ba(OH)2 2) What is the concentration of H3O+(aq) in each aqueous solution below? a) HNO3 with a pH of 2.34 b) KOH with a pH of 11.89 c) Ca(OH)2 with a pH of 11.68 3) Calculate the [OH-] in a solution with a pH of: a) 3.19 b) 9.87 c) 1.00 d) 11.41 Any questions? Leave them in the comments and we will be happy to answer them. Subscribe to the channel Fórmula de Soluções and activate the bell: You Tube: https://bit.ly/FórmuladeSoluções And follow Fórmula de Soluções on Social Media to receive notifications about our updates as well as other tips and chemical curiosities: Instagram:   / formuladesolucoes   Facebook:   / formuladesolucoes   Big hug! Until the next video... #entrance exam #college #inorganicchemistry #amochemistry #privateclass #university #uff #uerj #chemistryclasses #studies #summary #cainoenem #chemistry #class #enem #today'sclass #chemistryteacher #chemist #solutionformula #youtuber #youtubeedu #pharmacy #organicchemistry