What is the ph of the resulting buffer

Assignment Help Chemistry
Reference no: EM13689983

Problem- 500.0 mL of 0.140 M NaOH is added to 545 mL of 0.250 M weak acid (Ka = 7.75 Ã- 10-5).

1) What is the pH of the resulting buffer?

Show all work use additional paper if necessary.

Reference no: EM13689983

Questions Cloud

Calculate the ka for the acid : Problem- Enough of a monoprotic acid is dissolved in water to produce a 0.0123 M. The PH of the resulting solution is 2.58. Calculate the Ka for the acid.
The rate determining step for the sequence reaction : Problem- for the sequence [(O+N2 arrow NO+N)(1) or (NO+H arrow N + OH)(2)] reaction number (2) is the rate determining step. Is the statement true or false?
Calculate the ph at the equivalence point for the titration : Problem- Calculate the pH at the equivalence point for the titration of 0.160 M methylamine (CH3NH2) with 0.160 M HCl. The Kb of methylamine is 5.0Ã- 10â€"4.
What is the ph of the solution at the half-equivalence point : Problem- The half-equivalence point of a titration occurs half way to the end point, where half of the analyte has reacted to form its conjugate and the other half still remains unreacted. If 0.360 moles of a monoprotic weak acid (Ka = 4.5 Ã- 10-5..
What is the ph of the resulting buffer : Problem- 500.0 mL of 0.140 M NaOH is added to 545 mL of 0.250 M weak acid (Ka = 7.75 Ã- 10-5). 1) What is the pH of the resulting buffer
What volume of base is needed to reach the end point : Problem- The flask shown here contains 0.761 g of acid and a few drops of phenolphthalein indicator dissolved in water. The buret contains 0.160 M NaOH. 1) What volume of base is needed to reach the end point of the titration
Calculate the change in ph when 4.00 ml of 0.100 m hcl : Problem- 1) Calculate the change in pH when 4.00 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) and 0.100 M in NH4Cl(aq).
A stock solution is prepared by adding albr3 : Problem- A stock solution is prepared by adding 20mL of 0.2M AlBr3 to enough water to make 65mL. How many moles of Br� are in 45mL of the stock solution?
Gas is synthesized by combining hyrdogen and nitrogen : Problem- Ammonia gas is synthesized by combining hyrdogen and nitrogen. If you want to produce 562g of NH3, what volume of H2 gas at 56 degree Celsius and 745 mmHg is required? (r=0.08206 L(atm)/ mol(K), also assume the reaction is not an equilibr..

Reviews

Write a Review

Chemistry Questions & Answers

  The oxide of which of the metals the greatest lattice energy

The oxide of which of the following metals should have the greatest lattice energy?

  What is the density of a block of marble that occupies 253

what is the density of a block of marble that occupies 253 cm3 and has a mass of 752

  What is the balanced equation for the magtrieve oxidation

What is the balanced equation for the Magtrieve Oxidation of 4-Cholorbenzyl alcohol to 4-chlorobenzaldehyde? If 1 mmol of 4-chlorobenzyl alcohol and 700 mg of Magtrieve are used

  If a man runs his column chromatography on a friday

a predict the order of elution of a mixture of biphenyl benzoicacid triphenylmethanol methyl benzoate from a silica

  Explain the ph of a solution prepared with sodium acetate

What is the pH of a solution prepared with 25 ml of 0.134 sodium acetate and 25 ml of 0.200 M of acetic acid

  What is the final temperature of a metal sample

what is the final temperature of A metal sample weighing 34.526 g was heated to 98.0 degrees Celcius then quickly transferred into a styrofoam cup calorimeter containing 74.365 g of distilled water at a temperature of 27.0 degrees celcius.

  Calculating the concentration of the acetate ion

Calculating the concentration of the acetate ion when dissociation of acetic acid occurs in water and over varying pH conditions?

  Explain how many grams of dry nh4cl need to be added

How many grams of dry NH4CL need to be added to 2.30 L of a 0.400 M solution of ammonia,NH_3 , to prepare a buffer solution that has a pH of 8.53? Kb for ammonia is 1.8*10^-5.

  Will the temperature decrease shift the equilibrium toward

question will the temperature decrease shift the equilibrium toward the reactants or products for a reaction

  Compute the heat that would be generated for a reaction

Assume the value of Delta H for this reaction is -3.8*10^2 kJ/mol The formula is 4. 2HCl (l) + Mg (s) ??? MgCl? (s) + H? (g) Assume magnesium reacts with excess HCL. Calculate the heat that would be generated for a reaction of .20 g of magnesium m..

  Need to calculate the heat formation of products

Need to calculate the heat formation of products, but have heat of formation for NaCl of concentration 1mol/L.

  Explain what is the solubility of mns

What is the solubility of MnS, in grams per liter, in a buffer solution that is 0.115M HC2H3O2

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd