Explain a buffer solution contains 0.71 mol of boric acid

Assignment Help Chemistry
Reference no: EM13329017

A buffer solution contains 0.71 mol of boric acid (H3BO3) and 0.53 mol of sodium dihydrogen borate (NaH2BO3) in 4.00 L. The Ka of boric acid (H3BO3) is Ka = 5.8e-10. What is the pH of the buffer after the addition of 0.50 mol of NaOH? (assume no volume change) I already know the pH for the first part. it's 9.11 i just can't figure out the pH after the addition of 0.50 mol of NaOH

Reference no: EM13329017

Questions Cloud

Determine what is the stocks growth rate per share : A firm's recent dividend was $2.00 per share. The stock is selling in the market place for $50.00 per share. If investors are demanding 10% on this stock, what is this stock's growth rate
What will be the minimal length of the key : If Encrypt-It-Rite would like to increase the average cracking time to at least 100 years, what will be the minimal length of the key?
What equal annual deposits must be made at : What equal annual deposits must be made at t=2,3,4,5,8,9 and in 10 in order to accumulate $40,000 at t=15 if money is worth 10% compounded annually?
What is the purpose of the diffie-hellman algorithm : Briefly compare and contrast how asymmetric cryptography is used to provide encryption as opposed to how it can be used to provide a digital signature.
Explain a buffer solution contains 0.71 mol of boric acid : A buffer solution contains 0.71 mol of boric acid (H3BO3) and 0.53 mol of sodium dihydrogen borate (NaH2BO3) in 4.00 L. The Ka of boric acid (H3BO3) is Ka = 5.8e-10. What is the pH of the buffer after the addition of 0.50 mol of NaOH
What amount should be paid for the bond : Mr.Fritz wishes to purchase a bond having a face value of $1000 and a bond rate of 8% payable annually. The bond has a remaining life of 12 years. In order to earn 10% rate of return on the investment, what amount should be paid for the bond?
Which will encrypt each users data in a file : Acme Inc. is developing the next generation financial tracking program, and Alice has been given the task of writing the encryption component, which will encrypt each user's data in a file on the hard drive.
What is the minimum number of bonds the firm must sell : The MerryWeather Firm wants to raise $15 million to expand its business. To accomplish this, the firm plans to sell 10-year, $1,000 face value zero-coupon bonds. The bonds will be priced to yield 4 percent
Find out the molar enthalpy of vaporization : At two temperatures, 85 K and 135 K, the vapor pressures of a certain liquid were found to be 540 Torr and 830 Torr, respectively. From this information, determine the molar enthalpy of vaporization

Reviews

Write a Review

Chemistry Questions & Answers

  Explain why must all the lines in the hydrogen spectrum

Why must all the lines in the hydrogen spectrum between 2500 A and 7000 A belong to the Balmer series

  Which ions in water make it hard

which ions in water make it 'hard'? is it possible to test for only one of these ions quantitatively in the presence of the other.

  Calculate the volume the gas

A fixed quantity of gas at 21 exhibits a pressure of 730 and occupies a volume of 4.40. Use Boyle's law to calculate the volume the gas will occupy if the pressure is increased to 1.85 while the temperature is held constant.

  Compute the total internal energy change delta u

Before the reaction, the volume of hte system was 6.60L. After the reaction, the volume of the system was 2.00L. Calculate the total internal energy change, Delta U, in kilojoules

  How many carbon atom are in the period

The "lead" in lead pencils is actually almost pure carbon, and the mass of a period mark made by a lead pencil is about 0.0001g How many carbon atom's are in the period?

  State the resultant combustion reacion produces co2

When a mixture of 10.0 g of C2H2 and 10.0 g of O2 is ignited, the resultant combustion reacion produces CO2 and H2O. How many grams of C2H2, O2, CO2

  Explain what percentage of the object is copper

An object is made up of copper and zinc. The mass of the object is 46.2652g and has a density of 9.25 g/cm^3. What percentage of the object is copper. What percentage is zinc

  What would be the atmospheric pressure of mtbe

what would be the atmospheric pressure of MTBE in Pa If this sample were at equilibrium with atmospheric MTBE? KH = 1.7 M/atm.

  Calculate the number of moles of gas present

a sample of nitrogen gas kept in a container of vulume 2.43 L and temp 27degree C exerts a pressure of 4.83 atm. calculate the number of moles of gas present

  Explain the formation of the insoluble hydroxide

If hydroxide ion is formed, the OH- may react with some of the Fe3+ to produce an insoluble hydroxide. Will the percent yield of the iron (III) compound containing a complex ion be affected by the formation of the insoluble hydroxide

  Define what is the concentration of the zinc

Each was extracted with three 5-mL aliquots of CCl4 containing an excess of 8-hydroxyquinoline. The extracts were diluted to 25 mL and their fluorescence was measured. What is the concentration of the zinc in the unknown solution?

  Find out the molarity of an acetic acid solution

If you needed to determine the molarity of an acetic acid solution, CH3COOH, how would you proceed? CH3COOH(aq)+H2O(l) H3O^+(aq)+CH3COO^-(aq)

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