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Acid-Base Chemistry
Page 5
Questions (825)
Determine the pH of 263 ml of solution which has [NH 4I] = 0.300 M. Kb = 1.74 × 10-5 for NH3(aq)
3 answers
asked by
Cait
1,962 views
when a 25.0 mL sample of an unknown acid was titrated with a 0.100 M NaOH solution. Determine Ka for the unknown acid. Volume
2 answers
asked by
Rosemary
1,305 views
Calculate the pH of a solution prepared by mixing 25.0 mL of 0.60 M HC2H3O2 and 15.0 mL of 0.60 M NaC2H3O2?
4 answers
asked by
Julie
645 views
what mass of sodium acetate should be dissolved in 1.00L of acetic acid, 0.150M concentration, in order to produce a buffer with
3 answers
asked by
Reen
821 views
Calculate the pH at the equivalence point of 25.0 mL of a 0.100 M acetic acid, CH3COOH, titrated with a 0.100 M sodium
4 answers
asked by
Anonymous
2,208 views
Determine the [H3O^+] of a 0.240 M solution of formic acid.
3 answers
asked by
Eddie
893 views
Find the concentration of H3O if the pOH of a solution is 11.700:
So far I have: pH= 14.000- pOH which is 14.000-11.700=2.300 pH
4 answers
asked by
Lucy
1,578 views
how are acids and proteins related?
2 answers
asked by
Anonymous
99 views
If a buffer solution is 0.100 M in a weak acid ( 𝐾a=4.9×10−5) and 0.440 M in its conjugate base, what is the pH?
4 answers
asked by
Drew
196 views
Calculate [H+] for a 1.20×10-3 M aqueous solution of acetic acid (HC2H3O2; Ka = 1.80×10-5).
b) Calculate the pH of the above
1 answer
asked by
Abbie
418 views
A vessel contains 500. milliliters of a 0.100-molar H2S solution. For H2S, Ka1 = 1.0 X 10-7 and
Ka2 = 1.3 X 10-13 (a) What is the
1 answer
asked by
Madison
456 views
Calculate the pH of a 2.00 M NH4CN solution.
2 answers
asked by
jill
503 views
30 mL of 1 M HCl were added to 200 mL of 0.1 M lysine solution having pH = pKa of the side-chain amino group. What is the new
1 answer
asked by
FS
386 views
What is the pH of a 0.085 M solution of nitrous acid (HNO2) that has a Ka of 4.5 × 10^-4?
2.21 5.33 3.35 4.42 I am not the best
4 answers
asked by
Jameson
1,236 views
How can I determine the
H3O+ concentration of 0.50 M HCHO2 if I don't have the Ph of the solution?
3 answers
asked by
Er
1,438 views
What is the hydrogen ion concentration in a
solution having a pOH of 5.74? Answer in units of M. I initially did 14-5.74=8.26 to
3 answers
asked by
Dr Bob- please help!!
1,005 views
1) Find the pH of 0.54 M C5H5N(aq) given that its Kb = 1.7×10^-9.
The answer I got is 2.75 but I got it wrong. The answer is
3 answers
asked by
Sri2734
929 views
Calculate the PH and POH of an aqueous solution that is 25.00% of HCL by mass and density of 1.35g/no
3 answers
asked by
okore
765 views
When an acid is titrated with a Carbonate, do we have to heat the system when Hph is the indicator? If so what is the reason?
4 answers
asked by
Shenaya
405 views
Which of the following bases is the weakest?
1)(CH3)2NH , Kb = 5.1 x 10–4 2)ClO–, Kb = 2.9 x 10–7 3)SO42–, Kb = 8.3 x
3 answers
asked by
Anonymous
1,904 views
Calculate the pH values and draw the titration curve for the titration of 500 mL of 0.010 M acetic acid (pKa 4.76) with 0.010
1 answer
asked by
Samantha
985 views
Why HNO3 only can used for acidification in volhard method not other acids like HCl or H2SO4?
3 answers
asked by
Amal
1,149 views
In the titration of a solution of a weak acid HA with NaOH the pH is 5.0 after 10ml of NaOH solution has
been added and 5.6 after
4 answers
asked by
Sandu
595 views
If the pH of a 0.46 M aqueous solution of a weak base is 9.2, estimate the Kb of the base:
3 answers
asked by
Damon
644 views
How do i calculate the pH of 0.0020mol/l HCl
3 answers
asked by
Buck
1,882 views
a) A weak acid, HX, is 1.3% ionized in .20 M solution. What percent of HX is ionized in a .030 M solution? b) Does the percent
4 answers
asked by
TS
1,221 views
the acid dissociation constant for acetic acid is 1.85x10^-5. Calculate the pH at the equivalent point and the pH at one-half
3 answers
asked by
Anonymous
725 views
Given 20g of benzoic acid contaminated with 0.4g of salicytic acid.
1)Determine the volume of hot water required to dissolve the
3 answers
asked by
Jenny
1,134 views
What is the (H3O+) and
the ph of a buffer that consists of 0.25M HNO2 and 0.69M KNO2? (Ka of HNO2 = 7.1 x 10^-4) is this right?
4 answers
asked by
patrick
1,140 views
A buffer is made by mixing 100 mL of 0.25 M acetic acid (CH3COOH) and 150 mL of 0.10 M sodium acetate (CH3COONa). Calculate the
3 answers
asked by
Jaden
955 views
Calculate the pH of a potassium phosphate buffer if the pKa of KH2PO4 is 7.2 and the acid-base ratio is 2:1
I took Chemistry 7
3 answers
asked by
Liz
510 views
Calculate the pH at the equivalence point for the titration of 0.140 M methylamine (CH3NH2) with 0.140 M HCl. The Kb of
4 answers
asked by
Francesca
2,072 views
What is the ph of 0.25 M tartaric acid? Ka=2.5*10^-5M
3 answers
asked by
brad
436 views
A 1.11 M solution of fluoroacetic acid, FCH2CO2H, is 5% dissociated in water. Calculate the value of the pKa of FCH2CO2H.
pKa: ??
4 answers
asked by
WIll
1,785 views
At equilibrium, what is the hydrogen-ion concentration if the acid dissociation constant is 0.000 001 and the acid concentration
4 answers
asked by
Angela
920 views
500.0 Ml of 0.160 M NaOH is added to 565 ml of 0.250 M weak acid. Ka=2.46x10^-5. What is the pH of the resulting buffer
3 answers
asked by
Joe
1,284 views
A 1M solution (200ml) of NH3 (Kb of ammonia=1.8*10-5) is added to 200ml of 0.5M HCl. Calculate:
a) the resulting pH? b) The delta
3 answers
asked by
anonymous
871 views
a 23.74 mL volume of .0981 M NaOH was used to titrate 25 mL of a weak monoprotic acid solution to the stoichiometric point.
3 answers
asked by
Anonymous
1,241 views
Calculate the pH of 75 ml of the buffer composed of .1M HC2H3O2 with .2M NaC2H3O2; to which 9.5 ml of .1M HCl is added.
3 answers
asked by
Kelli
521 views
How do I complete an ICE table for a solution of nitrous acid, HNO2, one of the acids associated with acid deposition?
3 answers
asked by
Iris
1,315 views
how can a salt be related to a particular acid and a particular base
2 answers
asked by
Dimitri
850 views
I keep getting the last part of this question wrong.
Strong base is dissolved in 765 mL of 0.200 M weak acid (Ka = 4.63 x 10^-5)
3 answers
asked by
Katherine
1,782 views
show why ka(kb)=kw for this pair of conjugate acid-base: H2C6H6O6 and HC6H66 ^-1
3 answers
asked by
nicole
1,312 views
1.)Find the PH of a solution with 0.20M NH3 with 0.15M of NH4Cl.
2.)Find PH of a solution with a mixture of 200mL of 0.50M HCHO2
3 answers
asked by
Chem help me!
962 views
If you add 0.35grams NaF to 150mL of a 0.30M HF, what is the pH of the resulting solution?
To start off would I use the value of
3 answers
asked by
Hannah
329 views
Calculate the pH for each of the following cases in the titration of 50.0 mL of 0.230 M HClO (aq) with 0.230 M KOH (aq). The
3 answers
asked by
Rosi
3,744 views
What is the CHANGE in pH when 0.005 moles of HCl is added to 0.100 L of a buffer solution that is 0.100 M in CH3CO2H and 0.100 M
3 answers
asked by
Morgan
1,602 views
Calculate the pH of the following buffer solutions:
a) a solution made by dissolving 2.733g KH2PO4 and 4.508g K2HPO4 in water to
7 answers
asked by
Karie
1,487 views
Mulitple choice
What is the concentration of H^+ in solution given the [OH^-]= 1.32x10^-4 a)7.58x10^-11M b)1.32x10^-11M
6 answers
asked by
Anonymous
1,228 views
100 ml of 0.02 M acetic acid (pKa= 4.76) is titrated with 0.02 N KOH. After adding
some base to the acid solution, the observed
3 answers
asked by
kavin
2,131 views
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