Questions LLC
Login
or
Sign Up
Ask a New Question
Chemistry
Acids and Bases
pH and pKa values
what is the pKa of an acid that has a pH of 7.4 at neutralization and has to have 25 mL added to neutralize it
1 answer
I don't get it. If it has pH of 7.4 at neutralization why would anything need to be added to neutralize it? BTW, 25 mL of what M of what?
You can
ask a new question
or
answer this question
.
Related Questions
A contains 1.60g of trioxonitrate(v) acid in 250cm³ of the solution.
B contains 9.0gdm3 of XHCO3, 25cm³ portions of B required
rank strongest acid to weakest acid?
rank strongest acid to weakest acid H3CNH2 CH3C (triple bond) CH CH2=CHCH3 H20 CH4 i tried
The pKa of acetic acid is 4.74. What is the buffering range of this acid and its conjugate base? Explain.
.4g sample of monobasic acid requires 16cm3 of .1 mol dm 3 of NAOH for complete neutralization what is relative mass of acid
Arrange the acids
I) hydrogen selenate ion (HSeO− 4 ), pKa = 1.92; II) phosphoric acid (H3PO4), pKa = 2.12; III) selenous acid
100 mL of 1.0 M formic acid (HCOOH) is titrated with 1.0 M sodium hydroxide (NaOh).
The Approximate pKa is 4 At the pKa, what
The weak acid HQ has pKa of 4.89.
1)Calculate the [H3O+] of .035 M HQ. 2)Calculate the (OH-) of 0.500 M HQ ....Am I correct? a)
The Ka for a weak acid, HA, is 1.6x10-6. What are the (a) pH and (b) degree of ionization of the acid in a 10-3 M solution? (c)
What molar ratio of HPO4 2- to H2PO4 - in solution would produce a pH of 7.0? Phosphoric acid (H3PO4), a triprotonic acid, has
What is the pKa for the acid HA if a solution of 0.65 M HA and 0.85 M NaA has a pH of 4.75?
~~~I know you find the ph by doing