#1: A 20 mL of 0.10 M HCI was titrated with 0.06 M NaOH. What is the pH at the equivalence point? Choices: 4.23 5.64 7.0

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1 A 20 Ml Of 0 10 M Hci Was Titrated With 0 06 M Naoh What Is The Ph At The Equivalence Point Choices 4 23 5 64 7 0 1 (38.58 KiB) Viewed 37 times

#1: A 20 mL of 0.10 M HCI was titrated with 0.06 M NaOH. What is the pH at the equivalence point? Choices: 4.23 5.64 7.00 8.15 10.01 #2: A 15.00 g sample containing mixed alkali and other inert components was dissolved and diluted to 300 mL with water. A 20 mL aliquot was titrated with 5.02 mL of 0.5352 M HCl to reach PHP endpoint. Another 20 mL aliquot was titrated to the BCG endpoint, using up 18.87 mL of titration in the process. What is/are the component/s of the sample? Choices: NaOH only NaHCO3 only Na2CO2 only NaOH and Na2CO3 NaHCO3 and Na2CO3 #3: A 500.0 mL buffer solution contains 0.30 M acetic acid (CH3COOH) and 0.20 M sodium acetate (CH3COONa). (a) The pH of this buffer solutions is Choices: 4.57 4.65 (b) After the addition of 20.0 mL of 1.00 M NaOH solution, the pH is Choice 4.71 5.2