Answered: he pH of a solution formed by mixing…

he pH of a solution formed by mixing 20.0 mL of 0.250 M formic acid, HCOOH, and 8.0 mL of 0.400 M NAOH is 3.99. Determine the K, for formic acid.

Appl Of Ms Excel In Analytical Chemistry

2nd Edition

ISBN:9781285686691

Author:Crouch

Publisher:Crouch

Chapter7: Neutralization Titrations And Graphical Representations

Section: Chapter Questions

Problem 3P

See similar textbooks

Related questions

Q: A solution is prepared that is initially 0.092 M in methylamine (CH,NH,), a weak base, and 0.10 M in…

A: Given data: A solution is prepared that initially contain 0.092 M in methylamine (CH3NH2 ),a weak…

Q: Calculate the pH of a 0.877 M solution of NaF. The K, for the weak acid HF is 6.8 x 10*. pH =

Q: A solution is prepared by mixing 585 mL of 0.600 M NH3 and 320 mL of 0.600 M HCI. Assuming that the…

Q: 80.0 mL of 0.30 M NaOH and 80.0 mL of 0.30 M HCl are mixed together. What is the approximate pH of…

A: Acid and base react with each other and form salt and water it is a neutralization reaction In this…

Q: Calculate the pH that results when the following solutions are mixed: 35 mL of 0.20 formic acid, 55…

Q: If a buffer solution is 0.160 M in a weak acid (K₁ = 1.9 × 10-5) and 0.450 M in its conjugate base,…

A: Given, Concentration of weak acid = 0.160 M Ka = 1.9 x 10-5 Concentration of Conjugate base =…

Q: A solution is made by dissolving 0.06100 moles of Ba(OH)2 in enough water to make 250.0 mL of…

A: Given, moles of Ba(OH)2 = 0.06100 moles Volume of the solution = 250.0 mL = 0.250 L pH of the…

Q: A solution is prepared by diluting 20.0 mL of 0.0010 M HCl to a final volume of 2.00 liters. What…

A: Consider the given information is as follows; Volume of initial HCl solution V1= 20.0 mL = 0.02 L…

Q: A solution is prepared that is initially 0.24M in ammonia (NH,), a weak base, and 0.28M in ammonium…

A: Weak electrolytes are those which do not dissociate completely rather there occurs equilibrium…

Q: Find the pH of a KOH solution made by mixing 123 mg KOH with enough water to make 250 cm3 of…

A: Formula used:- pOH = 14-pH

Q: A 0.285−mol sample of HX is dissolved in enough H2O to form 605.0 mL of solution. If the pH of the…

A: Dissociation extent for any species is clearly visible in its dissociation constant value. If this…

Q: A solution containing 572.0mL of 0.6300MHCl is diluted to a volume of 1.000L. What is the pH of this…

Q: 3.3. Calculate the pH of the solution prepared by adding 35.00 mL of 0.4211 M NAOH and 63.00 mL of…

A: (3.3) Given - Molarity of strong base, sodium hydroxide, NaOH = 0.4211 M Volume of NaOH = 35.00…

Q: Is it possible that a weak acid solution and strong acid solution have the same pH? Explain.

A: Weak acid- Acids which do not dissociate completely in aqueous solution. Example - HCl Strong…

Q: If the ?a of a monoprotic weak acid is 2.9×10−6, what is the pH of a 0.29 M solution of this…

Q: If 5.00 mL of 6.00M HCl is added to 95.00 mL of purewater, the final volume of the solution is…

A: If 5.00 mL of 6.00M HCl is added to 95.00 mL of pure water, the final volume of the solution is…

Q: The pH for 0.185 M solution of an unknown weak base, B, is 12.95. Determine the value of Kb for the…

A: pH = 12.95 pH = 12.95pOH = 14-pH=14-12.95=1.05 OH-=10-pOH=10-1.05=0.089 M

Q: A solution is prepared by dissolving 0.00050 mol KOH in enough water to prepare 500.0 mL of…

A: The pH is a scale that is widely used to measure the acidity or basicity of a solution. The pH is…

Q: If the ?b of a weak base is 5.9×10−6,5.9×10−6, what is the pH of a 0.28 M 0.28 M solution of this…

Q: A solution is prepared by mixing 25 mL of 0.06 M NaOH with 65 mL of 0.125 KOH. What is the pH of…

Q: A certain weak base has a ?bKb of 8.80×10−7.8.80×10−7. What concentration of this base will produce…

A: 0.057 M

Q: Suppose a 0.10OM solution of each of the following substances is prepared. Rank the pH of the…

A: There are some substance :- KF, NH4I ,HBr, NaCl, LiOH . We have to calculate the PH of the 0.100M…

Q: An aqueous solution at 25 °C is 14.4% HNO, by mass and has a density of 1.054 g/mL. What is the pH…

Q: Diluted sulfuric acid has a density of 1.3 g / ml and contains 39% by mass of H2SO4. a) What is the…

Q: Calculate the pH of a 1L aqueous solution that is0.14 M in HF and 0.19 M in NaF after 0.013 mol of…

A: The solution which can resist the change in the pH of solution upon addition of acid or base is…

Q: What is the pH of a solution made by mixing 30.00 mL of 0.10 M HCI with 40.00 mL of 0.10 M KOH?…

A: It is an example of acid base neutralisation reaction in which an acid is neutralises by the base…

Q: Calculate the pH of a 0.50 M solution of sodium cyanide (NaCN). The K, of HCN is 4.9 x 10 10.

A: A strong base and weak acid react to form salt and water. The salt will be basic in nature and the…

Q: A solution of cadmium hydroxide with a pH of 9.36 is to be prepared. What mass of cadmium hydroxide…

A: Given that: pH of cadmium hydroxide = 9.36 volume of solution = 1.50 L To find, the mass of…

Q: A solution is prepared by mixing 290 mL of 0.700 M NH3 and 170 mL of 0.700 M HCI. Assuming that the…

Q: The pH of a solution prepared by mixing 2.0mL of a strong acid solution of pH 3.00 and 3.0mL of a…

A: The pH of resulting solution can be calculated as follows

Q: A 30.0 mL aliquot of a solution is 0.25 M HCl . If 0.1 M NaOH is to be added to this solution,…

Q: A 1.0M HCI solution has a volume of 20.0 mL. Determine the pH of the solution that results from…

A: a) Since the addition of base NaOH will make HCl react with it as per the reaction HCl + NaOH…

Q: A solution is made by mixing 0.05 mL of 1.0 M HCI with 999.95 mL of pure water. Calculate the pH of…

A: The pH of a solution is the negative logarithm of hydrogen ion concentration.

Q: Calculate the pH when 29.91 mL of 0.2628 M carbonic acid is mixed with 10.1 mL of 0.1448 M NaOH.

A: For carbonic acid, 29.91 mL of 0.2628 M carbonic acid Ncarbonic acid = n- factor × M…

Q: - solution is made from 0.19 M CH3NH2 (a weak base) and 0.27 M CH3NH3CI. What is the pH of the…

A: Solution- CH3NH2=0.19 MCH3NH3Cl=0.27MUsing the henderson eqution -GivenKb=4.4×10-4 pKb=-logKb…

Q: Calculate the pH of a solution obtained by mixing 438 mL of 0.14 M nitric acid with 385 mL of…

Q: A 0.15 M solution of a certain weak acid has a pH of 4.25. The K, of the weak acid is

Q: In the laboratory, a general chemistry student measured the pH of a 0.386 M aqueous solution of…

A: Note: As per our guidelines we are suppose to do only first question. To get the solution of other…

Q: Calculate the pH of a solution which results from the mixing of 50 ml of 0.3 M HCI with 50 ml of 0.4…

A: Given volume of HCl = 50 mL = 0.050 L As, 1000 mL = 1.0 L Molarity of HCl = 0.3 M = 0.3 mol/L…

Q: In the laboratory, a general chemistry student measured the pH of a 0.558 M aqueous solution of…

Q: what is the pH of a solution made by mixing 30 mL of 0.100 M HCl with 40.0 mL of 0.100 M KOH? Assume…

A: Given Volume of HCl ( V1 ) = 30 mL Molarity of HCl ( M1 ) = 0.100 M Volume of KOH ( V2 ) =…

Q: What is the pH of a solution obtained by adding 219 mL of 0.309 M HCl to 905 mL of a HNO3 solution…

A: We have given that Concentration of HCl = M1 = 0.309 M Volume of HCl = V1 = 219 mL Volume of HNO3…

Q: In the laboratory a student measures the percent ionization of a 0.558 M solution of formic acid ,…

A: The dissociation of formic acid: Concentration of formic acid =0.558M. Percentage ionization of…

Q: A student measures the temperature of an NaOH solution to be 40°C. The student then measures the pH…

A: PH is defined as the negative log of the concentration of H+ ion. PH = -logH+ POH is defined as…

Q: When 10 mL of 0.1 M NaOH is added to 50 mL of 0.05 M HCl solution, which is the final pH of the…

A: A numerical problem based on pH determination, which is to be accomplished.

Q: )What is the pH of a solution composed from 52.0 mL of 0.128 M HCI with 48.0 mL of 0.235 M NaOH?

Q: The pH of a solution prepared by mixing 50.0 mL of 0.125 M NaOH and 30.0 mL of 0.125 M HNO3 is…

Concept explainers

Ionic Equilibrium

Chemical equilibrium and ionic equilibrium are two major concepts in chemistry. Ionic equilibrium deals with the equilibrium involved in an ionization process while chemical equilibrium deals with the equilibrium during a chemical change. Ionic equilibrium is established between the ions and unionized species in a system. Understanding the concept of ionic equilibrium is very important to answer the questions related to certain chemical reactions in chemistry.

Arrhenius Acid

Arrhenius acid act as a good electrolyte as it dissociates to its respective ions in the aqueous solutions. Keeping it similar to the general acid properties, Arrhenius acid also neutralizes bases and turns litmus paper into red.

Bronsted Lowry Base In Inorganic Chemistry

Bronsted-Lowry base in inorganic chemistry is any chemical substance that can accept a proton from the other chemical substance it is reacting with.

Question

The pH of a solution formed by mixing 20.0 mL of 0.250 M formic acid, HCOOH, and 8.0 mL of 0.400 M NaOH is 3.99. Determine the K, for formic acid.

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 steps with 2 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.

Similar questions

Two samples of 1.00 M HCl of equivalent volumes are prepared. One sample is titrated to the equivalence point with a 1.00 M solution of sodium hydroxide, while the other sample is titrated to the equivalence point with a 1.00 M solution of calcium hydroxide. a Compare the volumes of sodium hydroxide and calcium hydroxide required to reach the equivalence point for each titration. b Determine the pH of each solution halfway to the equivalence point. c Determine the pH of each solution at the equivalence point.
A quantity of 0.25 M sodium hydroxide is added to a solution containing 0.15 mol of acetic acid. The final volume of the solution is 375 mL and the pH of this solution is 4.45. a What is the molar concentration of the sodium acetate? b How many milliliters of sodium hydroxide were added to the original solution? c What was the original concentration of the acetic acid?
How many grams of HI should be added to 265 mL of 0.215 M HCI so that the resulting solution has a pH of 0.38? Assume that the addition of HI does not change the volume of the resulting solution.
A solution with a pH of 9.22 is prepared by adding water to 0.413 mol of KX to make 2.00 L of solution. What is the pH of the solution after 0.368 mol of HX is added?
A friend asks the following: Consider a buffered solution made up of the weak acid HA and its salt NaA. If a strong base like NaOH is added, the HA reacts with the OH to form A. Thus the amount of acid (HA) is decreased, and the amount of base (A) is increased. Analogously, adding HCI to the buffered solution forms more of the acid (HA) by reacting with the base (A). Thus how can we claim that a buffered solution resists changes in the pH of the solution? How would you explain buffering to this friend?
A solution is prepared from 0.150 mol of formic acid and enough water to make 0.425 L of solution. a Determine the concentrations of H3O+ and HCOO in this solution. b Determine the H3O+ concentration that would be necessary to decrease the HCOO concentration above by a factor of 10. How many milliliters of 2.00 M HCl would be required to produce this solution? Consider that the solution was made by combining the HCl, the HCOOH, and enough water to make 0.425 L of solution. c Qualitatively, how can you account for the differences in the percentage dissociation of formic acid in parts a and b of this problem?
Consider a solution prepared by mixing a weak acid HA and HCl. What are the major species? Explain what is occurring in solution. How would you calculate the pH? What if you added NaA to this solution? Then added NaOH?
What is the pH of the solution obtained by titrating 1.30 g of sodium hydrogen sulfate, NaHSO4, dissolved in 50.0 mL of water with 0.175 M sodium hydroxide until the equivalence point is reached? Assume that any volume change due to adding the sodium hydrogen sulfate or to mixing the solutions is negligible.
A solution of weak base is titrated to the equivalence point with a strong acid. Which one of the following statements is most likely to be correct? a The pH of the solution at the equivalence point is 7.0. b The pH of the solution is greater than 13.0. c The pH of the solution is less than 2.0. d The pH of the solution is between 2.0 and 7.0. e The pH of the solution is between 7.0 and 13.0. The reason that best supports my choosing the answer above is a Whenever a solution is titrated with a strong acid, the solution will be very acidic. b Because the solution contains a weak base and the acid (titrant) is used up at the equivalence point, the solution will be basic. c Because the solution contains the conjugate acid of the weak base at the equivalence point, the solution will be acidic.
For an aqueous solution of acetic acid to be called distilled white vinegar it must contain 5.0% acetic acid by mass. A solution with a density of 1.05 g/mL has a pH of 2.95. Can the solution be called distilled white vinegar?
An aqueous solution of 0.057 M weak acid, HX, has a pH of 4.65. What is the pH of the solution if 0.018 mol of KX is dissolved in one liter of the weak acid?
Sketch the titration curve for a weak acid titrated by a strong base. When performing calculations concerning weak acidstrong base titrations, the general two-slep procedure is to solve a stoichiometry problem first, then to solve an equilibrium problem to determine the pH. What reaction takes place in the stoichiometry part of the problem? What is assumed about this reaction? At the various points in your titration curve, list the major species present after the strong base (NaOH, for example) reacts to completion with the weak acid, HA. What equilibrium problem would you solve at the various points in your titration curve to calculate the pH? Why is pH 7.0 at the equivalence point of a weak acid-strong base titration? Does the pH at the halfway point to equivalence have to be less than 7.0? What does the pH at the halfway point equal? Compare and contrast the titration curves for a strong acidstrong base titration and a weak acidstrong base titration.