A buffer is prepared by adding 1.50x10(exponent 2)mL of 0.250M NaOH to 2.50x10(exponent 2)mL of 0.350M weak acid, HB. The solution is diluted to 1.00L. If the pH of the resulting solution is 5.55, what is the pKa of the weak acid?
Solution Preview
From Henderson-Hasselbalch equation
pH = pKa + log ([conjugate base]/[acid])
Here pH = ...
Solution Summary
Solution uses Henderson-Hasselbalch to solve problem, including steps.
... As a research technician at Pharma-pill, you are told that X-281 in a monoprotic weak acid, but because of security concerns, the ... To find the pKa of X0281 ...
... a weak acid, we need the dissociation constant to find the [H+ ... X can be ignored in the denominator since it is a weak acid. ... pH = pKa +log[conjugate base]/[acid]. ...
... 2) How to find the ionic strength of bromothymol ... 1 SPECTROPHOTOMETRIC DETERMINATION OF THE pKa OF AN ACID...acid-base indicators are organic weak acids or bases ...
... As the pKa of weak acid get large (increases) the strenght of thier conjugate bases become: a)stronger b)weaker c)stays the same d)can't be compared. Find the ...
... I find the Ka of H2PO4- in my text to be 6.3 x 10^-8, so the pKa = -log 6.3 ... The reason for this is that you will dilute the weak acid and the conjugate base ...
Titration of Strong and Weak Acids. ... Estimation of acid/base equilibrium constant, pKa. ... Assignment (Procedure 1) 1. Find the equivalence point from the graph. ...
... X 10-4 ?? - (Is this the way to find the hydronium ... 1. Calculation of pKa = 2. Calculation of Ka = 3 ... and Ionization Constant of an Unknown Weak Monoprotic Acid. ...
... 10.00-mL sample of a solution containing the weak acid, formic acid... So, we just have to find the pH at half ... equivalence point and that will be equal to the pKa. ...
... We can therefore determine the pKa of an acid by measuring ... the amino acid groups all act as weak acids/bases - it ... As far as your graph goes, I found a funky ...
