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pH Calculations
Page 4
Questions (299)
im trying to calculate the pH of a 1.0L soln containing 53.8 g of completely dissociated Mg(CN)2.
is this the diss. equation?
1 answer
asked by
christine
385 views
I am a little confused regarding a question I posted yesterday ("Chem" Tuesday, March 6, 2007 at 9:29pm)
I understand the answer
1 answer
asked by
Marisol
517 views
Calculate the pH at 0mL, 5mL,...40mL for a 10.0mL aliquote of 0.100M Na3AsO4 (weak base) titrated with 0.100M HCl
pKa1 = 2.25
2 answers
asked by
julie
640 views
what volume of .422 M NaOH must be added to .500L of .300 M acetic acid to raise its ph to 4.00
i know you have to use the
3 answers
asked by
Sean
2,341 views
Q: Calculate the pH of a solution that is 0.56 M HC3H5O3 and 1.28 M NaC3H5O3.
I used the H-H equation for this and got this so
4 answers
asked by
.
1,964 views
Consider a solution that contains both C6H5NH2 and C6H5NH3+. Calculate the ratio [C6H5NH2]/[C6H5NH3+] if the solution has the
3 answers
asked by
Margaret
1,955 views
Calculate the pH at 298K of solutions having the following ion concentrations?
A. [H+]=1.0 x 10^-4M B. [H+]=5.8 X 10^-11M for A
3 answers
asked by
Anonymous
1,940 views
Calculate the pH for each of the following cases in the titration of 50.0 mL of 0.150 M HClO(aq) with 0.150 M KOH(aq). The
3 answers
asked by
Francesca
1,595 views
A buffer system contains 0.30 M NH4+ and 0.15 M NH3. pKa of NH4+ is 9.25. How many moles of NaOH must be added to 1.00 L of this
3 answers
asked by
Ally
1,547 views
If the Ka of a monoprotic weak acid is 4.5x10^-6 what is the pH of a .10M solution of this acid.
I don't even know how to start
7 answers
asked by
Molly B
1,519 views
A buffer solution of volume 100.0 mL is 0.150 M Na2HPO4(aq) and 0.100 M KH2PO4(aq). Refer to table 1.
(a) What are the pH and the
5 answers
asked by
Trixie
1,495 views
A solution is prepared by dissolving 0.56 grams of benzoic acid (HC6H5CO2, MM = 122.12 g/mol, Ka = 6.4 X 10-5) in enough water
3 answers
asked by
meow
1,461 views
1.
Calculate the pH of a buffer solution that contains 0.32 M benzoic acid (C6H5CO2H) and 0.17 M sodium benzoate (C6H5COONa). [Ka
3 answers
asked by
Erin
1,457 views
Calculate the pH of:
a) ammonia, 0.1M, in water b) ammonium chloride, 0.1M, in water c) a buffer solution containing ammonia
2 answers
asked by
Abby
1,330 views
Calculate the pH of a 0.800 M NaCH3CO2 solution. Ka for acetic acid, CH3CO2H, is
1 answer
asked by
noel
1,307 views
0.15g of sodium hydroxide (NaOH) pellets are dissolved in water to make 3.0L of solution. What is the pH of this solution?
2 answers
asked by
Rose M
1,265 views
calculate[OH-],[H+] of a .20 M solution of triethylamine Kb=4.0*10^-4
2 answers
asked by
chad
1,200 views
Calculate the change in pH if 10mL of 0.1M HCl is added to the buffer made by mixing 25 mL of 1.0 M CH3COOH and 25 mL of 0.5 M
3 answers
asked by
Lyca
1,184 views
The pKb of pyridine is 8.75. What is the pH of a 0.205M solution of pyridine?
1 answer
asked by
Anonymous
1,145 views
a buffer prepared by mixing equal moles of an acid having Ka=4.5x10^-4 and a salt of its conjugate base has a pH of what?
3 answers
asked by
sarah
1,126 views
calculate the pH of 20.00mL of 2.00 M HCl diluted to 0.500 L
2 answers
asked by
Colin
1,095 views
What is the pH of a 0.40 mol L^-1 H2Se solution that has the stepwise dissociation constants
Ka1 = 1.3 × 10^-4 and Ka2 = 1.0 x
2 answers
asked by
Elaina
1,091 views
4.The Kb of ammonia, NH3, is 1.8x10^-5. What is the pH of a 2.000 millimolar solution of ammonia , to 3 significant digits.
2 answers
asked by
Samantha
1,097 views
compute for the pOH of a solution prepared by dissolving 5.50g KOH in enough to make a 100.0mL solution
2 answers
asked by
valerie faylogna
1,086 views
1. A good indicator will have a(n)____ close to this volume and pH.
I think it's endpoint but it's wrong. 2. (part a) What is the
9 answers
asked by
Jody
1,059 views
A 50.0 mL sample of 0.10 M pyridine, C5H5N, is titrated with 0.2 M HBr. Calculate the pH to one decimal place when the following
2 answers
asked by
Katie
1,031 views
How would you calculate the pH of the buffer if 1.0mL of 5.0M NaOH is added to 20.0mL of this buffer?
Can someone please explain
2 answers
asked by
Airin
998 views
what is the concentration of hydrogen ion in a 0.1M solution of sodium hydroxide(NaOH)?
NaOH dissolves and completely dissociates
1 answer
asked by
michelle
1,020 views
Calculate the [H], [OH], pH and the pOH of this solution; 0.0025 M NaOH
2 answers
asked by
Shane
975 views
What is the pH of a solution that has a concentration of hydronium ions that is 4.7 × 10-4 molar H3O+? Show, or explain, the
2 answers
asked by
Johnny
970 views
What volume (in milliliters) of 0.170 M NaOH should be added to a 0.140 L solution of 0.021 M glycine hydrochloride (pKa1 =
1 answer
asked by
L
969 views
Using a 0.20 M phosphate buffer with a pH of 6.5, you add 0.72 mL of 0.46 M NaOH to 58 mL of the buffer. What is the new pH of
2 answers
asked by
Mack
969 views
Hi there. I'm doing a paper on Biology (yes I know, will explain the chem link in a sec) and in it am trying to find the best pH
2 answers
asked by
JB
957 views
1)A buffer solution that is 0.10 M sodium acetate and 0.20 M acetic acid is prepared. Calculate the initial pH of this solution.
2 answers
asked by
JUNDY
939 views
If you start with 200 ml of 0.1M HEPES buffer (pH 7.5) and add 1.25 ml of 0.5M HCl, what will the final pH be? (The pKa of HEPES
5 answers
asked by
Kailyn
931 views
Calculate the ph of a buffer solution that is 0.10M in ammonia and 0.15M in ammonium chloride .kb for ammonia is 1.8*10^-5
3 answers
asked by
lina
901 views
A 25.00 mL sample of a soft drink was titrated using 12.10 mL of 1.50 M NaOH. Given that the soft drink's monoprotic acid has a
2 answers
asked by
Josh
896 views
If the Kb of a weak base is 2.6 × 10-6, what is the pH of a 0.24 M solution of this base?
2 answers
asked by
Alex
846 views
Please tell me if these are right!
What are the [H3O+] and [OH-] for a solution with the following pH values? a. 10.0 I got
2 answers
asked by
Jessica
863 views
How to calculate PH 2.13 = 0.007M Why?
Please show for me. I want you step by step for me.
2 answers
asked by
Fai
831 views
Calculate the pH of a solution resulting from the addition of 10.0 mL of 0.10 M NaOH to 50.0 mL
of 0.10 M benzoic acid (Ka = 6.5
2 answers
asked by
haley
851 views
Assume you have prepared 100.0 mL of a buffer solution using 0.400 mol of acetic acid (pKa = 4.74) and 0.400 mol of sodium
2 answers
asked by
J
831 views
Calculate the change in pH when 5.00 mL of 0.100 M HCl(aq) is added to 100.0 mL of a buffer solution that is 0.100 M in NH3(aq)
2 answers
asked by
Janavi
830 views
Can you please tell me if these are right?
Determine the pH for the following solutions A [OH-] = 1.0 X 10^-7 M I got 7 B. [H3O+
2 answers
asked by
Jessica
1,207 views
I actually posted this up before and Gk helped out but i don't understand the steps what do i enter for the pka for the first
4 answers
asked by
Saira
1,160 views
Please let me know if my answer to the following question is correct.
Question: 25 mL of standardized 0.45 mol/L NaOH is titrated
3 answers
asked by
Abigail
819 views
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
782 views
Calculate the ph for ch3co2h,3% dissociated at a concentration of 0.02 mol dm-3.
2 answers
asked by
kirsten
754 views
.12M Lactic Acid (HC3H5O3, Ka=1.4x10^-4) is mixed with .10M NaC3H5O3 to form 1.00L solution.
A. Calculate the pH of the solution
3 answers
asked by
Emma
799 views
Calculate the pH of the buffer that results from mixing 50.8 mL of a 0.493 M solution of HCHO2 and 13.0 mL of a 0.646 M solution
2 answers
asked by
Kiki
785 views
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Acid-Base Chemistry
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