Page 1 of 1
pts) If Ka = 1.8 x 10 for the conjugate acid. What is the [base)/(acid) ratio necessary to make a buffer lution with a p
Posted: Sat Jul 09, 2022 12:30 pm
by answerhappygod
- Pts If Ka 1 8 X 10 For The Conjugate Acid What Is The Base Acid Ratio Necessary To Make A Buffer Lution With A P 1 (38.12 KiB) Viewed 53 times
- Pts If Ka 1 8 X 10 For The Conjugate Acid What Is The Base Acid Ratio Necessary To Make A Buffer Lution With A P 2 (9.9 KiB) Viewed 53 times
pts) If Ka = 1.8 x 10 for the conjugate acid. What is the [base)/(acid) ratio necessary to make a buffer lution with a pH of 5.15? 5.15= -log(1.8x10³) + log [ best- (base) Grid acid AO. 39: 1 B) 0. 91: 1 C) 1. 09:1 D) 2.5: 1 a) What is the pka of the conjugate acid? c) Using the results from 5.15= (-4-7447) + log log [base] = acid 0.4053 = -log (-0.4053) 0.39-2 b) Write down the Henderson-Hasselbach equation for this buffer and insert the values for the pH and pka. 5.15 = 1.8x10-5 + log The base neutralization. base acid 4-7447-5-15 1 part (b), what does this tell you about the [base]/[acid] ratio? and acid [base] [acid] b) How many moles of base were titrated with the moles of acid? ratio are used up for a perfec 6) (20 pts) A monoprotic, unknown base with mass 0.3 g is dissolved in 100 mL of water and titrated against 0.15 N HCI. The volume of the HCI needed to reach equivalence is 17 mL. a) How many moles of HCI were used in the titration? 116
From the number of moles and the mass, what is the apparent molecular mass of the base?