User Account

All Pages

What are the values of ka and pka for lactic acid

Assignment Help Chemistry
Reference no: EM13716840

Question - Lactic acid (C3H6O3), which occurs in sour milk and foods such as sauerkraut, is a weak monoprotic acid. The pH of a 0.10 M solution of lactic acid is 2.40.

Part A) What are the values of Ka and pKa for lactic acid? Ka=??

Part B) Express your answer using two decimal places.pKa=

I want proficient help to crack the above problem

Reference no: EM13716840

Questions Cloud

What is the radius of the curve : A car is rounding a level curve at 60 mph (approximately 27 m/s). At this speed, the car is right on the verge of having its tires slip so that it skids off the road. what is the radius of the curve
Explain how much volume should the gas occupy : Consider a gas with pressure = 1 atm, 1 mole of molecules, and a temperature of 295 K. R=0.082 atm*L/(mol * K). How much volume should this gas occupy
Determine what the wavelength of the light : Monochromatic light falls on two very narrow slits 0.044mm apart. Successive fringes on a screen 6.90m away are 8.2cm apart near the center of the pattern. Determine the wavelength of the light
Estimate the length of time the car is in the air in seconds : A car is parked on a cliff overlooking the ocean on an incline that makes an angle of 22 degrees below the horizontal. Find the length of time the car is in the air in seconds
What are the values of ka and pka for lactic acid : Lactic acid (C3H6O3), which occurs in sour milk and foods such as sauerkraut, is a weak monoprotic acid. The pH of a 0.10 M solution of lactic acid is 2.40.
What volume would it occupy : A car battery stores about 4.0MJ of energy. If all this energy were used to create a uniform electric field of 32kV/m,  What volume would it occupy
Estimate how tall is the building : A brick is thrown upward from the top of a building at an angle of 20 degrees to the horizontal and with an initial speed of 10 m/s. If the brick is in flight for 3 seconds how tall is the building
How much heat in kj is required to warm the ice : How much heat (in kJ) is required to warm 13.0g of ice, initially at -11.0?C, to steam at 110.0?C? The heat capacity of ice is 2.09 J/g??C and that of steam is 2.01 J/g??C
Find what is the plate area : A parallel-plate capacitor with 0.90mm plate spacing has ± 2.5 µC on its plates when charged to 170V. What is the plate area

Reviews

Write a Review

Chemistry Questions & Answers

  What was the concentration of the solution

A chemist wanted to determine the concentration of a solution of lactic acid, HC3H5O3. She found that the pH of the solution was 2.59. What was the concentration of the solution.

  Explain what is the core electron configuration

what is the core electron configuration, valence electron configuration and its Lewis symbol.

  State what adjustment should be made to the mobile phase

what adjustment should be made to the mobile phase to bring the compound off sooner? why?

  The heat needed to raise the temperature of a large cup

The heat required to raise the temperature of a large cup of water (for coffee) from room temperature to boiling is approximately 100 kJ. Express this quantity of heat in kilocalories and British thermal units.

  State equilibrium expression for the solubility product

A 300.0-mL saturated solution of gold (II) phosphate, contains 0.31 grams of dissolved salt. a. Write an equilibrium expression for the solubility product constant.

  Define assure reproducible absorbance data

what experimental variables must be controlled to assure reproducible absorbance data

  Define heating the remaining solid weighed

After heating, the remaining solid weighed 0.427 g. Assuming all the CaCO3 broke down to CaO and CO2, calculate the mass percent of CaCO3 in the original mixture.

  Explain the lowest vapor pressure at a given temperature

Choose the substance with the lowest vapor pressure at a given temperature. A) CO2 B) BeCl2 C) BF3 D) He E) PF5

  Explain a cell constructed of copper electrodes immersed

If the charge calculated in the first part of this question is passed through a cell constructed of copper electrodes immersed in an acidic solution of copper sulfate (0.5 M CuSO4/0.1 M H2SO4), what mass of copper, in mg, will be deposited on the ..

  How to calculate delta h in kj for the rxn

Assuming the specific heat os the solution is 4.18 (J/gC), that its density is 1 g/ml, and that the calorimeter itself absorbs a negligibkle ammount of heat, calculate delta H in kJ for the rxn

  Calculate the concentrations of all gases

it is found that the equilibrium concentrations in a 5.00 L rigid container are [H2] = 0.0500 M, [F2] = 0.0100 M, and [HF] = 0.400 M. If 0.338 mol of F2 is added to this equilibrium mixture, calculate the concentrations of all gases once equilibri..

  Will the molar concentration of the naoh be reported

A drop of NaOH titrant adheres to the side of the buret (due to a dirty buret) between the initial and final reading for the titration. As a result of the "clean glass" error, will the molar concentration of the NaOH be reported too high or too lo..

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!

Submit Assignment

Academics

Major Subjects

Majors

Get In Touch

whatsapp: +1-415-670-9521

Phone: +1-415-670-9521

Email: [email protected]

TERMS & POLICIES

HELP & SUPPORT

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