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Acid-Base Chemistry
Page 8
Questions (825)
Calculate the pH of 10.00 mL of 0.40 mol/L of hydrochloric acid.
5 answers
asked by
L
347 views
Consider the titration of the weak acid HA with NaOH. At what fraction of Ve does pH = pKa - 1? At what fraction of Ve does pH =
3 answers
asked by
Remy
888 views
why is the pka of C6H11NH3+ around 9.2 but not around 38?
3 answers
asked anonymously
20 views
Why does nh3+ not have the same pka as nh3?
3 answers
asked anonymously
22 views
Ph scale
Which on is true A substance with ph is twice as acidic as substance with ph of 4. A subtances with ph 3 is 10 as acidic
2 answers
asked by
shan
804 views
after extraction with bicarbonate which layer is the benzoin and which is the benzonic acid
1 answer
asked by
Anonymous
564 views
What is the pH of a 1×10−4 mol HCl solution?(1 point)
8 6 4 2
3 answers
asked by
Anonymous
11 views
how would i sketch a pH curve for the titration of40.00mL of 0.100 M hydrazine H2NNH2(aq) having a Kb of 3.0x10^-6 by 0.100M
3 answers
asked by
Mike
477 views
sketch a ph curve for the titration 40.00 mLof 0.100M hyrazine H2NNH2(aq) having a Kb of 3.0 x 10^-6 by 0.100 M HCIO4(aq)
3 answers
asked by
Shelly
847 views
Calculate [H3O+] and [OH-] in 0.18M hydrobromic acid, HOBr(aq), having a K of 2.0x10^-9?
I got 9.0x10^-8
4 answers
asked by
Jacob
569 views
What is the pH of a solution that is 0.62M H2SO4(aq) and 1.7M HCOOH (formic acid).
2 answers
asked by
Calvin
697 views
I had to calculate the conjugate base/acid ratio of phenol red in a phenol red solution prepared with a buffer I made and the
2 answers
asked by
Amy
683 views
What is the pH after 5 mL of 0.1M NaOH has been added to 25 mL of 0.2M acetic acid?
1 answer
asked by
Megan
373 views
Can someone help me with this question please?
What is the pH at each of the points in the titration of 25.00 mL of 0.1000 MHCl
1 answer
asked by
Anonymous
364 views
Calculate the theoretical pH after 2.50 mL and 9.50 mL of NaOH has been added in both the
titration of HCl and of HC2H3O2.
2 answers
asked by
Anonymous
472 views
If a 0.50 M solution of potassium hypochlorite, [OH^-]=3.0*10^-4. What is the Ka for hypochlorous acid?
Can someone please help
1 answer
asked by
JM
390 views
buffer calculate the ph of the .1m propanoic acid Ka 1.35e-5
2 answers
asked by
neee
556 views
Posted by polkadot on Friday, April 8, 2011 at 8:46pm.
Can someone please help me by explaining and correcting me? 1) A 0.057M
3 answers
asked by
polkadot
502 views
Calculate [H3o+] in each aqueous solution at 25*C, and classify each solution as acidic or basic.
a. [OH-]= 1.1 x 10^-9M b.
1 answer
asked by
sally
863 views
Calculate the pH of a solution that obtained by diluting 0.015 mol acetic acid with water to 250 cm3 (the Ka -
value for acetic
1 answer
asked by
Anonymous
372 views
If 1 volume of 0.1 KH2PO4 is mixed with 2 volumes of 0.1 OHEtNH2 (pka=9.44), what will be the pH of the mixture?
I know I know:
3 answers
asked by
Jimmy
380 views
A solution of acetic acid is prepared in water by adding 11.1 g of sodium acetate to a volumetric flask and bringing the volume
2 answers
asked by
medina
723 views
How to calculate the hydronuim ion cencentration of solution with a pH of 2.5?
1 answer
asked by
Tarkan
284 views
Determine the pH of 0.100 M aqueous HCN to two decimal places, and determine the concentration of CN- at equlibrium to two
4 answers
asked by
Jenni
479 views
If a weak acid has a dissociation constant of 6.4 x 10(-6), what is the pH of a solution of this acid in 0.10 molar
2 answers
asked by
Maddy
478 views
a buffer is prepared by mixing .208 L of 0.452 M HCl and 0.5 L of 0.4 M sodium acetate. When the Ka= 1.8 x 10^-5
I figured out
4 answers
asked by
Mikey
698 views
A solution of nicotinic acid, HC6H4NO2, of concentration 0.012 M has a pH of 3.39 at 25 degrees Celsius. Calculate Ka for this
1 answer
asked by
Marlynda
421 views
A perchloric acid solution is composed of 168.75 g of perchloric acid and 81.25 mL of pure water. What is the percent by mass of
4 answers
asked by
Helpplease
1,614 views
What is pH of the buffer 0.1 mol L-1 Na2HPO4/0.15 mol L-1 KH2PO4?
(Given Ka(H2PO4-)=6.2x10 power-8). Sorry if the power is
2 answers
asked by
Elleni
559 views
What is pH of an aqueous solution formed by adding 20 mL of 0.1 mol L-1 NaOH to 30 mL of 0.2 mol L-1 HCI?
Please show steps and
2 answers
asked by
Elleni
564 views
A volume of 25.0 ml of 0.100 M CH3CO2H is tiltrated with 0.100 M NaOH. What is pH after the addition of 12.5 mL of NaOH? (Ka for
1 answer
asked by
Helen
404 views
answer the following questions how does increasing the concentration of H3O+ ions affect the PH of a solotion? as you increase
3 answers
asked anonymously
59 views
Calculate the [H3O+] of each aqueous solution with the following [OH-]:
urine, 1.8 x 10^-9 M Express your answer to two
3 answers
asked anonymously
29 views
A solution of NaOH(aq) contains 6.2 g of NaOH(s) per 100.0 mL of solution. Calculate the pH and the pOH of the solution at 25
3 answers
asked by
katie
399 views
Consider the titration of 50.0 mL of 0.20 M NH3 (Kb=1.8*10^-5) with 0.20 M HNO3. Calculate the pH after addition of 50.0 mL of
4 answers
asked by
Syra
993 views
A lactic acid/lactate ion buffer solution contains 0.19 M HC3H5O3 and 0.78 M C3H5O3-, respectively. The Ka value of lactic acid
2 answers
asked by
Lynne
667 views
Could a Bronsted-Lowry acid not be an Arrhenius acid? Explain.
Could someone explain the answer to me?
4 answers
asked by
Ana
742 views
calculate [H+] if [OH] is 1.688x10^-3
1 answer
asked by
chemistry
294 views
Is 50.0mL of 1.0 MHF and 50.0 mL of 1.0M NaOH a buffer solution with a pH of 3?
3 answers
asked by
Bill
413 views
A 30.00 mL volume of a weak acid, HA, (Ka = 3.8 x 10^-6) is titrated with 39.00 mL of 0.0958 M NaOH to the equivalence point.
A.)
2 answers
asked by
Shell
490 views
How do I calcualte and what would my titration curve look like for a 25mL 0.1M H3PO4 solution titrated with 0.1M NaOh.
The
1 answer
asked by
Jerry
463 views
calculate pH of 50.0 mL of a .100 M solution of the weak monoprotic acid HX
2 answers
asked by
Emily
536 views
EPA acidity test can be performed by titrating water sample to a pH of 8.2. What titrant in what concentration would you suggest
3 answers
asked by
alissa
456 views
how many mL of .100 M of acetic acid and .100 M of NaOH, would be need to make the volume 1.0 liters and have a pH7.00 if
4 answers
asked by
josh
330 views
Hi! Thank you for your help...
A 25.0 mL sample of 0.723 M HClO4 is titrated with a 0.273 M KOH solution. The H3O+ concentration
3 answers
asked by
Kiki
2,189 views
Calculate the pH of the buffer solution that results when 10 mL of 0.10 M NaH2PO4 is added to 3 mL of 0.05 M NaOH.
2 answers
asked by
pat
665 views
Calculate the pH of a 0.21 M CoCl3 solution. The Ka value for Co(H2O)63+ is 1.0 10-5.
2 answers
asked by
pinki
609 views
A buffered solution is made by adding 50.0 g NH4Cl to 1.00 L of a 0.70 M solution of NH3. Calculate the pH of the final
3 answers
asked by
Nikita
1,187 views
Every Bronsted-Lowry acid is also a Lewis acid.
Why is this statement false? Thanks
2 answers
asked by
Hello
740 views
Hydronium ions are composed of
OH- H+ H2O Which one
1 answer
asked by
michael
341 views
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Analytical Chemistry
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