Questions LLC
Login
or
Sign Up
Ask a New Question
Buffer Solutions
Page 4
Questions (707)
What mass of solid sodium formate (of MW
68.01)must be added to 125 mL of 0.48 mol/L formic acid (HCOOH) to make a buffer
3 answers
asked by
gabriella
889 views
What is the concentration of H+ ions in a buffer solution containing 0.305 M benzoic acid (with ionization constant 6.5 ×
4 answers
asked by
gabriella
1,077 views
How many milliliters of 1.0 M NaOH must be added to 200. mL of 0.10 M NaH2PO4 to make
a buffer solution with a pH of 7.50? (5
3 answers
asked by
bill
968 views
What is the hydronium ion concentration of a buffer solution that is 0.10M NaHPO4 and 0.50M NaH2PO4? For H3PO4,Ka1=6.9x10^-3,
4 answers
asked by
Viv
665 views
How many grams ammonium chloride and how many milliliters 3.0 M sodium hydroxide should be added to 200 ml of water and diluted
3 answers
asked by
---
1,141 views
Find the pH of a buffer that consists of 0.82 M methylamin (CH3NH2) and 0.71 M CH3NH3Cl (pKb of methylamine (CH3NH2) = 3.35.)
I
4 answers
asked by
Edward
1,901 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
1,748 views
Calculate the correct volumes of the 0.1M acetic acid solution and the 0.1M sodium acetate solution needed to make 50mL of a
3 answers
asked by
Keighley
870 views
How do I calculate the amount of grams of Na2HPO4 and NaH2PO4 to prepare 200 mL of a buffer with an 8.25 pH so the sum of the
3 answers
asked by
Carrie
750 views
calculate the pH of a buffer solution containing 0.200M acetic acid, HC2H3O2, plus 0.150M sodium acetate. The dissociation
12 answers
asked by
Monique
1,829 views
a 250.0 ml buffer solution is 0.250 M in acetic acid and. 250M in sodium acetate. what is the ph after addition of. 0050 mol of
4 answers
asked by
Anonymous
2,063 views
How can weak acid nitrous acid HNO2 form a buffer solution with equal concentrations and volumes with weak base NH3?
I thought
3 answers
asked by
mike
686 views
I need to produce a buffer solution that has pH 5.28. I have already 10 mmol of acetic acid. How much solid sodium acetate will
7 answers
asked by
Jessica
1,013 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
A buffer containing 0.30 M HCLO and 0.30 M NaClO has a pH of 7.53. What will the pH be after .010 mol of NaOH is added to 100 ml
3 answers
asked by
Liz
459 views
100ml of each sol is mixed. Which is a buffer?
1. 1.0 M NH4Cl and 1.0 M KOH 2. 1.0 M NH3 and 0.60 M KOH 3. 1.0 M NH3 and 1.0 M
7 answers
asked by
John
507 views
What mass of NH4Cl must be added to 0.750 L of a 0.100 M solution of NH3 to give a buffer solution with a pH of 9.26? Kb(NH3) =
4 answers
asked by
Amy
1,487 views
What would happen if you add HCl to a buffer solution of HNO2 and KNO2 and result. WHat about adding NaOH?
3 answers
asked by
Antoine
749 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
3 answers
asked by
MMS
368 views
what will be the pH of a 100mL buffer solution containing 0.064 M of acetic acid and 0.036M f sodium acetate, after addition of
4 answers
asked by
lia
557 views
how many milliliters of the acetic acid (density:1.049g/ml)must be adding to 465m l of a 0 .0941m sodium hydroxide to obtain a
2 answers
asked by
onguglo
563 views
a solution is prepared by adding 5g of ammonia,Nh3, and 20g of ammonium chloride, NH4Cl , to enough water to form 2.5 L of
3 answers
asked by
Anthony
761 views
Which of the following would for a buffer if added to 250.0 mL of .150 M SnF2?
a).100 mol HCl b).060 mol HCl c).040 mol HCl
3 answers
asked by
homework
651 views
You need to prepare 1.0 L of a buffer with a pH of 9.15. The concentration of the acid in the buffer needs to be 0.100 M. You
5 answers
asked by
Lily
1,306 views
Activity Coefficient for Phosphate Buffers: How would I calculate the predicted pH for Na2HPO4 and NaH2PO4? For hypothetical pH
3 answers
asked by
H
639 views
How would you prepare 30 mL of acetic acid/acetate buffer solution of pH = 5.06?. Assumeyou have 0.1M solutions of both acetic
3 answers
asked by
NGIXY
555 views
In 2-3 sentences, describe how propanoic acid (C2H5COOH) and propanoate anion (C2H5COO-) can be used to make a buffer solution
3 answers
asked by
gavin
1,447 views
As a technician in a large pharmaceutical research firm, you need to produce 450. mL of 1.00 M a phosphate buffer solution of pH
3 answers
asked by
jess
2,605 views
A buffer is prepared consisting of 0.75 mol of sodium dihydrogenphosphate, NaH2PO4, and 0.60 mol of sodium hydrogenphosphate,
3 answers
asked by
jess
1,161 views
what two ingredients are used to prepare basic buffer solution??
3 answers
asked by
Naz
1,120 views
Hi, I am trying to find the pH of a buffer I created and then added NaOH to. This is my data:
total volume of solution 34.2 mL
4 answers
asked by
anon
474 views
How many grams of NaNO2 must be added to 1 liter of 1.00 M HNO2 solution in order to prepare a buffer solution with pH = 4.14?
3 answers
asked by
Maddy
1,086 views
How would you prepare 1.000 L of a 0.200 M phosphate buffer at pH 6.90 using crystalline Na2HPO4 and a solution of 1.000 M HCl?
3 answers
asked by
sbk2904
543 views
100 mL 0.1 M sodium acetate solution is mixed with 50 mL 0.1 M acetic acid. If now 0.937 mL of 1 M sodium hydroxide is added to
4 answers
asked by
Jamie
816 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
1.Suppose you had a buffer containing 0.5 moles of sodium monobasic phosphate and 0.5 moles of sodium dibasic phosphate. How
3 answers
asked by
Zaac
1,528 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
How many millilitres of a 0.1 M solution of NaF and of 0.1 M solution of HF
must be mixed to obtain 1L of buffer at pH = 4? Ka =
3 answers
asked by
James Wilson
865 views
A solution is prepared by dissolving 25.0 g of pure HC2H3O2 and 25.0 g of NaC2H3O2 in 700 mL of solution (the final volume).
(a)
2 answers
asked by
Dean
747 views
Calculate the ph of a buffer solution containing 0.2M NH4OH and 0.25M NH4Cl kb=1.8×10
4 answers
asked by
rupesh
1,457 views
A buffer solution contains 0.283 M hypochlorous acid and 0.456 M potassium hypochlorite.
If 0.0464 moles of perchloric acid are
3 answers
asked by
Curtis
1,654 views
A solution buffered at a pH of 5.00 is needed in an experiment. Can we use acetic acid and sodium acetate to make it? If so, how
3 answers
asked by
Veronica
1,040 views
How many mmol ( millimoles) of HCl must be added to 130.0 mL of a 0.40M solution of methyl amine (pKb = 3.36) to give a buffer
6 answers
asked by
Ana
1,430 views
A buffer solution is prepared by mixing 50.0 mL of 0.300 M NH3 with 50 mL of 0.300 NH4Cl. The pKb of NH3 is 4.74.
NH3 + H2O->
6 answers
asked by
Dee
2,903 views
Calculate the pH of .100 of a buffer solution that is .25 M in HF and .50 M in NaF. What is the change in pH on addition of the
2 answers
asked by
Ivy
827 views
Buffer capacity is a measure of a buffer solution\'s resistance to changes in pH as strong acid or base is added. Suppose that
3 answers
asked by
Brody
611 views
A student is asked to make an acetic acid/ acetate buffer with a pH of 4.10. The only materials on hand are 300 mL of white
1 answer
asked by
lola
398 views
What is the PH of a buffer made by adding 8.20 grams of sodium acetate(NaCH3CO2) to 500 ml of 0.10 M acetic acid(CH3CO2H). Ka
3 answers
asked by
Lele
574 views
If provided with Na acetate and 6.3M acetate acid.decribe how you will prepare 1L of 0.1M acetate buffer pH=5.0[pka=4 acetate
1 answer
asked by
Ekhaisomi rosejoy
438 views
Calculate the pH of a buffer solution containing 1.0 M ammonia (NH3 ; Kb = 1.8 x 10-5) and 1.0 M ammonium chloride (NH4Cl).
4 answers
asked by
Nick
1,690 views
Pages
1
2
3
4
5
6
7
8
9
10
Parent Categories (42)
Acid-Base Chemistry
Acid-Base Equilibria
Acid-Base Equilibrium
Acid-base reactions
Acids and Bases
Aqueous Solutions
Biochemistry
Chemical Compounds
Chemical Equations
Chemical equations and reactions
Chemical Equations, pH Calculation
Chemical Equilibrium
Chemical Reactions
Chemical Reactions/Molecules
Chemical Reactions/Solutions
Chemical Solutions
Chemistry
Enzyme-catalyzed reactions
Equilibrium
Equilibrium and Acids/Bases
Equilibrium Reactions
Lab Techniques
Laboratory Solutions
Laboratory Techniques
Mixtures
Mixtures and Solutions
Organic Chemistry
pH Calculations
Reaction kinetics
Reactions
Solubility
Solution Chemistry
Solution Preparation
Solutions
Solutions and Acids
Solutions and Acids/Bases
Solutions and Concentrations
Solutions and Mixtures
Solutions and pH
Solutions and Solubility
Stoichiometry
Stoichiometry/Chemical calculations