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Buffer Solutions
Page 7
Questions (707)
Which of the following mixtures will be a buffer when dissolved in 1 liter of water?
0.10 mol Ba(OH)2 and 0.20 mol HCl 0.30 mol
2 answers
asked by
Hannah
1,117 views
Starting out with 50 mL of 0.20 M NaHCO3, calculate how many mL of 0.50 M NaOH solution to add to make 100 mL of approximately
1 answer
asked by
Lucy
1,054 views
Laborant got a task to make a buffer, which pH = 8.00. Which same concentration solutions and which ratio would you suggest him
5 answers
asked by
Anonymous
299 views
Help please!
How many moles of NaOH must be added to 1.0 L of 3.0 M HC2H3O2 to produce a solution buffered at each pH? 1) pH=
2 answers
asked by
Mackenzie
626 views
Say, for example, that you had prepared a Buffer C, in which you mixed 8.203 g of sodium acetate, NaC2H3O2, with 100.0 mL of 1.0
2 answers
asked by
Frank
735 views
Asked earlier but got no reply :/ hopefully I get one now cause I'm really stuck and can't completely my assignment cause of one
2 answers
asked by
Taylor
485 views
How many grams of dry NH4Cl need to be added to 1.90 L of a 0.200 M solution of ammonia, NH3, to prepare a buffer solution that
1 answer
asked by
Taylor
703 views
Calculate the ratio of NaF to HF required to creAte a buffer with pH=4.00.
2 answers
asked by
Davis
881 views
which of the following has the highest buffer capacity?
A 0.10M H2PO4-/0.10M HPO4 -2 B 0.50 M H2PO4-/0.10 M HPO 2- C 0.10 M
2 answers
asked by
DebC
1,149 views
which of the following has the highest bugger capacity?
A 0.10M H2PO4-/0.10M HPO4 -2 B 0.50 M H2PO4-/0.10 M HPO 2- C 0.10 M
2 answers
asked by
ameryss
578 views
which one of the following pairs of 0.100 mol L-1 solutions, when mixed will produce a buffer solution?
a 50. mL of aquesous
3 answers
asked by
leaha
905 views
calculate the PH of each of the following buffers prepared by placing in 1.0 L of solution 0.10 mol NH3 and 0.10 mol of NH4CL
1 answer
asked by
samar
419 views
How do I calculate the ratio of weak base to weak acid in a methyl amine buffer solution at pH=10.645 and pH=11.645 and
1 answer
asked by
Nhi Song
384 views
16.72g of sodium acetate trihydride (MW=136 g/mol) is dissolved in 100mL water. To this, 4.00g glacial acetic acid (Ka=2.2x10-5,
2 answers
asked by
Elle
780 views
What is the ratio of KC2H3O2 and HC2H3O2 in a buffer with a pH of 5.25? Ka = 1.8 x10-5?
3 answers
asked by
Teresa
607 views
A buffer solution is 1.40 M in NH3 and 1.00 M in NH4Cl. If 0.100 moles of NaOH are added to 1.00 L of the buffer, what is its
1 answer
asked by
Haley
411 views
If 10 mL of 1M NaOH are added to one liter of a buffer that is 0.3 M acetic acid and 0.2 M sodium acetate (Na+CH3COO-), how much
2 answers
asked by
Jamal
568 views
What volumes of 25 mM CH3COOH and 25 mM NaCH3COO are required to prepare 300 mL of a 0.25 M buffer of pH = 5.0? (pKa = 4.76)
I
1 answer
asked by
DanV
421 views
I need to create a 100ml buffer with a pH of 4.00 using 0.100M Benzoic acid (pKa = 4.20)and 0.180M sodium benzoate. What volume
5 answers
asked by
amy
527 views
A buffer is made at pH 7.3. 0.15 M using imidazole And 1 M hydrochloric acid to form the buffer. Can you show calculations for
3 answers
asked by
Tommy
486 views
calculate Ph occuring when 100ml of 0.10m acid is added to 500ml of 0.08m acetate buffer,pka 4.75,ph 4.5
1 answer
asked by
Pearl
427 views
Calculate how many milliliters of 0.100 M HCl must be added to 25.0 ml of a 0.200 M solution of NH3 to prepare a buffer that has
2 answers
asked by
Terence
732 views
A buffer that consists of a mixture of NaH2PO4 and K2HPO4 has a pH of 6.73. The (HPO4)/(H2PO4) ratio in this buffer is what? If
2 answers
asked by
Anonymous
1,260 views
calculate the volumes of 0.10 M acetic acid and 0.20 M sodium acetate that are needed to prepare
48-mL buffer solution with pH =
1 answer
asked by
Iris
489 views
CH3CO2H: 0.109M & 20ml
NaOH : 0.109M& 10ml H20:10ml Buffer Problem, when I solve it the ratio becomes the same and the pH is the
2 answers
asked by
Nicole
868 views
You have 500.0 mL of a buffer solution containing 0.30 M acetic acid (CH3COOH) and 0.20 M sodium acetate (CH3COONa). What will
3 answers
asked by
Nicole
3,496 views
Which of the following pairs of substances, when mixed in any proportion you wish, can be used to prepare a buffer solution?
1)Na
2 answers
asked by
Rachel
500 views
a. According to the Henderson-Hasselbalch equation, how many grams of sodium acetate will you need to add to 125 mL of 0.100 M
1 answer
asked by
Cat
721 views
If I am given a solid chemical form of both the acid and the base, how do I determine how many grams of each I need to make 1L
1 answer
asked by
Jenny
423 views
If I take 5mL of a TRIS/HCL buffer with a pH of 7.4 and add 1mL of 1M HCL, how do I determine the new pH?
4 answers
asked by
Rose
800 views
We're doing a lab in my class and we're supposed to make a buffer at a certain pH.
I have decided to make a buffer with a pH of
4 answers
asked by
Ana
919 views
Calculate the pH of a buffer solution made by mixing 174 mL of a 1.68M trimethylamine (CH3)3N solution with 250 mL of a 1.08M
3 answers
asked by
Stephanie
538 views
write an sop that detail how to create 125 mM potassium phosphate buffer ph 7.1 at 32 degree celcius
1 answer
asked by
jenn
306 views
How much ammonium sulfate should be added to 500mL of .30M ammonia to make a buffer with a pH 9.0?
1 answer
asked by
joey
387 views
How many milliliters of 1.55 M NaOH must be added to 125 mL of .19 M NaH2PO4 to make a buffer solution with a pH of 6.90?
I have
4 answers
asked by
Elizabeth
690 views
Calculate the pH of two buffer systems to compare the differences in pH. One contains 1.0 M NH3 and 3.0 M NH4Cl. (Ka of NH4+, is
3 answers
asked by
Natalea
429 views
When the following solutions are mixed, which will act as a buffer? (check all that apply)
A. 50 mL of 0.05M sodium hydroxide and
5 answers
asked by
janie
722 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
If 400 mL of 0.1 M NaH2PO4 is mixed with 100 mL of 0.1 M H3PO4, what is the pH of the buffer mixture. The pKa of H3PO4 is 2.1.
2 answers
asked by
Please Help!!
525 views
Sorry!
HEPES, is a commonly used component of physiological buffers. The PKa of the protonated amino group of HEPES is 7.55 at
3 answers
asked by
Angel
917 views
HEPES, is a commonly used component of physiological buffers. The PKa of the protonated amino group of HEPES is 7.55 at 25C.
Desc
3 answers
asked by
Angel
631 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
A buffer solution is 0.20 M in HPO42- ions and 0.l0 M in H2PO4- ions. What is the H3O+ ion concentration of the solution? The
2 answers
asked by
james
506 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
Calculate the amounts and pH values for preparing the following acetic acid/acetate buffer solution.
1.) In the first step, If
3 answers
asked by
Lauren
802 views
What is the pH of a solution prepared by adding 4.000 grams of NaOH to a 50.00 mL of a buffer that is 2.00 molar both in acetic
2 answers
asked by
phil
558 views
You have to design a buffer based on one of the systems below
System 1: HA1 and A1-1 K= 4 E-3 System 2: HA2 and A2-1 K= 5 E-4
2 answers
asked by
maya
518 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
How many mL of .200M acetic acid are mixed with 13.2mL of.200M sodium acetqte to give a buffer with pH=4.2
9 answers
asked by
Chemistry
1,913 views
A beaker with 195 mL of an acetic acid buffer with a pH of 5.00 is sitting on a benchtop. The total molarity of acid and
3 answers
asked by
DrFunk
1,604 views
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