pH

Part Ill - Acid-Base Reactions Watch the video and complete the following: Step 1. 10 ml of the acid solution (HCI) was poured into a beaker. Followed by 2 drops of universal indicator. Observe and record the color of the solution in the first row of the following table in which the drops of NaOH added is zero. Step 2. A base solution (NaOH) was then added drop-wise to the above beaker. Observe the color of the solution after adding 10 drops of NaOH, 20 drops of NaOH, 35 drops of NaOH, and 40 drops of NaOH. Record the color of the solution after each addition in the following table. Color of the solution Drops of NaOH added 0 10 rt:d 20 35 40 Question 1: Complete the following equation: HCI (aq) + Na0H(aq) r\f c1- NC\t ow HiO l ~) ~_/ Question 2: This type of acid-base reactions are called (\el,JtrCA\ i l.Q{ I 00 reactions. Question 3: Explain why the color of the solution change with the addition of NaOH? ~+ s ¼ rted to ~e ;t oo.,\t.. w· ,th +~ oropS o~ NQO\-\ bc ,"1 n3 a_ddtd- "The . sa\ut, on Dtco l'V\ e yY\C) r{. bo.S ·, C. \ht ·, . - (}., c,o:\-or e,h<AY\ <3 e. s ' +a ~' r\¥-, btco.U Se, -the \, _ 1 ;n~olp~thQ.\lt~ i• .s ioni Rd I t"I t)o..s , c so\u+iol't • l)f\\\J~!" 5(A \ \l, o\e t - {j0i5e, 4