This is for my chem lab I am having problems doing the calculations

EQUL0499: Studying the PH of Strong Acid, Weak Acid, Salt, and Buffer Solutions199I. Observing ph Changes in Water and Buffer Solutions upon Addition of HCI and NaOH Solutions2.168 sodium acetate was used ! !solutionmeasured pHtheoretical [H30+ ]calculated pHdistilled water6.95original buffer solution4.50distilled water with added6M HCI1.60buffer solution with added4.426M HCIdistilled water with added12. 706M NaOHbuffer solution with added6M NaOH5.07calculateddistilled watersolife and wook acidswhich Itto 15151998 Cengage Learning