Login | StarRez Portal X M Inbox (2,154) - jlh182 X ellumHMAC=7d2a14cf930e095067acc9436d1d3281&key=2726716694223351516272023... SA Dashboard (Stenson Summer) 55 A 6 Part A Y X F6 pHinitial, PHfinal H Submit For 270.0 mL of pure water, calculate the initial pH and the final pH after adding 0.020 mol of NaOH. Express your answers to two decimal places. Enter your answers numerically separated by a comma. Part B MacBook Air & 7 Request Answer N = F7 U J For 270.0 mL of a buffer solution that is 0.215 M in HCHO2 and 0.315 M in KCHO2, calculate the initial pH and the final pH after adding 0.020 mol of NaOH. (Ka (HCHO) = 1.8 x 10-4.) Express your answers to two decimal places. Enter your answers numerically separated by a comma. [ * 00 8 M DII F8 K 9 DD F9 0 < www. ) 0 L ? ? F10 P Course Home > Hi, Javian I F11 LE { Sign Out Constants I Periodic Table [ < ? + 11 1 of 38 + F12 } > Help delete