Calculate the change in ph

Assignment Help Chemistry
Reference no: EM13716437

Problem- The pH of 0.05 M benzoic acid is 2.24. Calculate the change in pH when 2.45 g of C6H5COONa is added to 20 mL of 0.50 M benzoic acid, C6H5COOH. Ignore any changes in volume. The Ka value for C6H5COOH is 6.5 x 10-5.

Your answer must be supported by illustrations, Please answer with work shown to receive points:

Reference no: EM13716437

Questions Cloud

Define 6-dimethyl-3-phenyl-3-heptene on e2 elimination : There are two benzylic bromides that give (E)-4,6-dimethyl-3-phenyl-3-heptene on E2 elimination. Draw them. Use wedge and dash bonds to indicate stereochemistry. Do not explicitly draw hydrogens.
Define what was the ds (j/k) of the process : During the expansion of 0.9704 mole of CO2 gas, the pressure decreased from 2.304 atm to 1.0 atm. What was the DS (J/K) of the process?
What is the ph after 0.03 mol of ba(oh)2 : A buffer that contains 0.3 M of a base, B and 0.16 M of its conjugate acid BH+, has a pH of 9. What is the pH after 0.03 mol of Ba(OH)2 are added to 0.63 L of the solution
Calculate the poh of a solution : Calculate the pOH of a solution that results from mixing 27 mL of 0.11 M ethylamine (C2H5NH2) with 45 mL of 0.11 M C2H5NH3Cl.
Calculate the change in ph : The pH of 0.05 M benzoic acid is 2.24. Calculate the change in pH when 2.45 g of C6H5COONa is added to 20 mL of 0.50 M benzoic acid, C6H5COOH. Ignore any changes in volume. The Ka value for C6H5COOH is 6.5 x 10-5.
What is the sign of the entropy change for the heat transfer : What is the sign of the entropy change for the heat transfer. You probably know that when two objects at different temperatures are brought into contact, heat always travels from the hotter object to the colder object; never the reverse.
Degraded state is detected with probability 0.9 : Degraded state is detected with probability 0.9 (failed state with probability 1) and repair occurs in both degraded and failed states. Repair starts immediately upon detection of the failed or degraded state and restores the system to the oper..
The producers of a new toothpaste claim : 2.  The producers of a new toothpaste claim that it prevents more cavities than other brands of toothpaste. A random sample of 60 people used the new toothpaste for 6 months.  The mean number of cavities at their next checkup is 1.5. In the ge..

Reviews

Write a Review

 

Chemistry Questions & Answers

  Explain what are the molecular weight of the compound

Explain what are the molecular weight as well as the molecular formula of the compound. The freezing point of pure benzene is 5.48 degrees Celsius as well as it's Kf is 5.12 degrees Celsius/m

  Determine the shape of pcl3

Determine the shape (geometry) of PCl3 and then decide on the appropriate hybridization of phosphorus in this molecule

  Define carbon-14 decay rate of 16 disintegrations per minute

Present-day plant life has a carbon-14 decay rate of 16 disintegrations per minute (dpm) per gram of carbon. If a contemporary wooden chair were somehow preserved for the next 3,900 years, what 14C decay rate should be expected from the wood used ..

  How will the successful campaign which decreases supply of

before the civil war the south graded with the north and with england. it sold cotton and bought manufactured goods

  What is the resulting pressure if the gases are allowed

Question- Container A holds 762 mL of ideal gas at 2.60 atm. Container B holds 159 mL of ideal gas at 4.70 atm. If the gases are allowed to mix together, what is the resulting pressure?

  Evaluate the volume of the tank if the total pressure

Compute the volume of the tank if the total pressure of the mixture is 44.08 psi at 86°F. What is the partial pressure of each constituent and the average molecular weight of the mixture

  Calculate the molar solubility of so2 in raindrops

Question- Assuming its concentration in air is 2.0 ppb, calculate the molar solubility of SO2 in raindrops whose pH is fixed (by the presence of strong acids) to be 4.0, 5.0, and 6.0.

  State when o-phthalaldehyde is treated with koh

When o-phthalaldehyde (1-2-benzenedicarbaldehyde) is treated with KOH, and the reaction mixture is acidified, a single neutral product, isomeric with the starting material

  The size of the transition metal atoms reduces slightly

The size of the transition metal atoms reduces slightly from left to right in the periodic table. Explain what factor must be considered in explaining this decrease? In particular, why does the size decrease at all as well as why is the decrease s..

  How many molecules of carbon dioxide are produced when 145

how many molecules of carbon dioxide are produced when 145 molecules of acetylene hcch to react in excess oxygen

  Several grams of an unknown liquid were added to a 156 ml

several grams of an unknown liquid were added to a 156 ml dumas bulb at 22 c and 740 torr. the open bulb was then

  State moles of an ideal gas in an initial state

moles of an ideal gas in an initial state T1 = 300 K and P1 = 0.5 bar undergo an isothermal compression until the pressure of the system is four times the original pressure

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