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Buffer Solutions
Page 5
Questions (707)
What CH3COONa concentration is required to prepare a buffer solution with a pH of 4.80 if [CH3COOH] = 0.150 M? Ka of CH3COOH =
5 answers
asked by
hannah
785 views
To 160.0 mL of a buffer solution containing 0.250 M ammonia and 0.100 M ammonium chloride, 20.00 mL of 1.00M HClO4 are added. a)
2 answers
asked by
faizer
441 views
You are asked to prepare a pH = 4.00 buffer starting from 1.50 L of 0.0200 M solution of benzoic acid (C6H5COOH) and some added
3 answers
asked by
Lacy
1,484 views
Assignment 1
Question Consider a monohydrogen phosphate ( HPO42-) and dihydrogen phosphate (H2PO4-) buffer solution. [HPO42-] =
3 answers
asked by
anonymous
1,140 views
How many moles of H2PO4 and HPO4 would be needed to prepare 1.0 L of a 0.01M phosphate buffer with a pH of 6.82?
4 answers
asked by
Daniel
1,077 views
1. prepare a buffer solution by using acetic acid and sodium acetate.2. prepare M/40 NAOH solution.
3 answers
asked by
suchismita mandal
431 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
How many grams of formic acid, HCOOH, must be added to 0.270L of 0.180M sodium formate, HCOONa, to yield a buffer solution with
3 answers
asked by
Kev
783 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
How would you go about increasing the buffering capacity of a phosphate buffer?
I know that the answer is that you should
1 answer
asked by
laura
469 views
How would you make 100mL of tartrate buffer, pH 3.5, from 0.100 M tartaric acid, 1M NaOH and deionized and distilled H2O? You
2 answers
asked by
Elle
512 views
Explain (using equations) how a solution of 1.0 mol dm^-3 in both CH3COOH and CH3COONa is resistant to changes n pH when we add
4 answers
asked by
Petty
613 views
make 300.0 mL of a pH 5.30 buffer from 0.500 M acetic acid and 0.500 M sodium acetate. Calculate the volume of 0.500 M acetic
2 answers
asked by
mie
506 views
How many grams of NaOH(Mr 40) must be added to 100 ml of 0.1M H3PO4 to create phosphate buffer, pH 7.0?
I know I'm using
4 answers
asked by
Dilk
681 views
what will be the pH change when 20 mL of .1M NaOH is added to 80 mL of a buffer solution consisting of .164M NH3 and .187M
3 answers
asked by
anonymous
1,036 views
Which of the following would make the best buffer solution and explain.
HF and NaF or NaC2H3O2 and CH3COOH
2 answers
asked by
Mic
899 views
A buffered solution is made by adding 50.0 g NH4Cl to 1.00 L of a 0.84 M solution of NH3. Calculate the pH of the final solution
3 answers
asked by
chris
705 views
A 500 ml buffer solution contains .2M Acetic acid and .3M sodium acetate. Find the pH of the buffer solution after adding 20 ml
3 answers
asked by
jess
1,309 views
Consider a room temperature 0.30M ammonia buffer at pH 9.5. As you raise the temperature of the buffer, would you expect the pH
1 answer
asked by
julie
367 views
Which of the following mixtures will result in the formation of a buffer solution when dissolved in 1.00 L of water?
i) 0.50 mol
4 answers
asked by
Daniel
3,004 views
A buffer is prepared by dissolving .0250 mol of sodium nitrite, NaNO2, in 250.0 mL of .0410 M nitrous acid, HNO2. Assume no
3 answers
asked by
Simpson
1,247 views
Strong base is dissolved in 675 ml of 0.200 m weak acid (ka=3.25x10^-5) to make a buffer with a ph of 3.95. Assume that the
4 answers
asked by
Alex
3,502 views
A buffer solution is composed of 1.00 mol of acid and 3.25 mol of the conjugate base. If the pKa of the acid is 5.00, what is
2 answers
asked by
paige
25 views
If you mix 44 mL of 0.05 M K2HPO4 with 24 mL of 0.05 M KH2PO4, what % of the PO4 buffer is in the K2HPO4 form?
2 answers
asked by
anna
64 views
What is the pH of a buffer solution prepared with 0.5 M disodium phosphate
and 1 M sodium acid phosphate? The pK value of sodium
1 answer
asked by
ABEBE
97 views
A volume of 500.0 mL of 0.160 M NaOH is added to 625 mL of 0.250 M weak acid (𝐾a=1.95×10−5). What is the pH
of the
1 answer
asked by
Lee
78 views
Calculate the pH of a buffer solution made by adding 0.1 moles of solid Methylammonium nitrate to 120mL of 0.225Molar Of methyl
1 answer
asked by
Buffers
59 views
Calculate the mass of potassium hydrogen phthalate needed to prepare a buffer solution containing 15.7ml of 0.2 molar
1 answer
asked by
Paul
112 views
How much sodium phosphate buffer (1.5M, pH 7.2) is required to make 125 ml of a 50 Mm solution? How much water?
2 answers
asked by
na
127 views
If 0.010 mol of sodium hydroxide is added to 1L of a buffer that is 0.200 M HClO2 and 0.155 M NaClO2, what is the pH? Ka for
1 answer
asked by
Josh
245 views
Describe the preparation of 5 liters of a 0.3 M acetate buffer, pH 4.47, starting from a 2 M solution of acetic acid and a 2.5 M
1 answer
asked by
SAM
321 views
Describe the preparation of 100 ml of phosphate buffer pH 7.2 using a 0.5 M H2PO4 and O .5 M NaOH
2 answers
asked by
Jane
490 views
how many grams of tris and tris Hcl are needed to make up 500ml of 1m tris buffer with a pH of 0.8?
5 answers
asked by
seth
1,359 views
1. Outline a procedure to prepare an ammonia/ammonium buffer solution.
I'm confused how to start it off. This is an outline of
3 answers
asked by
Emily
2,056 views
DrBob222 thank you for your previous response. I am reposting the entire question.
Two different 1.2 L buffered solutions were
3 answers
asked by
KorieBird
2,583 views
you want to make a 0.5 m acetate buffer at a ph = 5.5. how much acetic acid and base should you mix
3 answers
asked by
da
540 views
So I already posted this question earlier today and got a reply but now that Im working through it, its not working.
What mass of
4 answers
asked by
Helpmepls
453 views
Write the chemical reaction that is responsible for the pH of a buffer which contains NH3 and NH4Cl. Write the reaction in such
3 answers
asked by
Anonymous
1,763 views
30ml of 0.1M of sodium hydroxide is added to 100Ml of 0.1M of acetic acid, then what is the pH of the buffer solution, where (Ka
1 answer
asked by
Manoj Mallick
461 views
How much Tris-HCl would you need (in grams) to add to create 100 mL of a 0.223 M Tris buffer that is pH 9.64. The pKa of
2 answers
asked by
Kody
538 views
what is the ph of 50ml buffer solution which is 2M in CH3COOH and 2M in CH3CooNa?
1 Initial PH before the addition of acids and
2 answers
asked by
Anonymous
699 views
You are asked to make 50 mM Tris-HCl pH 7.5. The pK of Tris is 8.1.
What is the concentration of the components (Tris and
2 answers
asked by
Alberto
897 views
How would i make phosphate buffer 0.3M pH 6.5 1L using sodium mono and dibasic solutions?
1 answer
asked by
Suchismita
388 views
i am confuse to prepare the buffer please tell me how to prepare the 0.02 M Sodium phosphate buffer, pH 6.9 with 0.006 M sodium
1 answer
asked by
Dayalu Naik
407 views
What is the pH of 1.00 L of the 0.100 M hydrofluoric acid/0.120 M fluoride ion buffer system from the previous problem after
1 answer
asked by
kinks
360 views
The most effective buffer solutions have equal concentrations of salt and acid (or base). Find the pH of a buffer solution with
2 answers
asked by
Luke
656 views
How can i prepare a 100ml, 0.1M phosphate buffer solution (pH = 5) out of Na2HPO4 and NaH2PO4
1 answer
asked by
atul
743 views
how many grams each of tris and tris HCl are needed to make up 500ml of 1m tris buffer with a PH of 8.0.
pka of tris =8.3 mwt of
3 answers
asked by
Anonymous
864 views
How many grammes Tn3 and Tn3 HCL are need to make up 500ml of 1m Tn3 buffer with a PH of 8.0?
Pka of Tn3 =8.3 MW of Tn3 =121 MW
1 answer
asked by
leaking
431 views
What mass of ammonium nitrate must be added to 350 mL OF 0.150 M solution of ammonia to give a buffer having pH of 9.00?
4 answers
asked by
Mxolisi
2,271 views
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