Explain the ph of the solution when half of the base

Assignment Help Chemistry
Reference no: EM13517994

Comsider the titration of a 25 mL of a 0.100 M solution of a weak acid HA, pKa = 7.5, with a 0.200M solution of a strong base.

a) how many mL of base must be added to reach the equivalnce point?

b) what is the pH of the solution when half of the base in part a has been added?

c) what is the pH of the solution at the equivalnce point?

d) if phenol solution = 0.167 M calculate the pH of it when Ka = 1.0 x 10^-10.

e) what is the concentration of hydroxide ions, [OH^-], when 100.0 mL of 0.400 M NaOH have been added to 100.0 mL of a 0.100 M H2SO4?

Reference no: EM13517994

Questions Cloud

Explain back titration with sodium thiosulfate : High altitude balloons used by environment Canada to measure O3 levels in the atmosphere also use a similar idiometric titration where the iodine liberated is measured by back titration with sodium thiosulfate. In this case the iodine is generated..
Define and explain four methods that are used for medical : Modern medical imaging can do much more than take a simple x-ray. Define and explain four methods that are used for medical imaging. Explain the physics behind these techniques, describe what they measure, and say something about the applicatio..
Calculate the strengths of the electrostatic repulsive force : Inside a helium nucleus there are two protons, each of charge +e. Calculate the strengths of the electrostatic repulsive force and the gravitational attractive force between the two protons
What is the force pushing you in the chair : if you are in a roller coaster, which is moving with 10m/s, describing a circular arc with the radius of 10m, what is the force pushing you in the chair at the top of the loop
Explain the ph of the solution when half of the base : What is the pH of the solution when half of the base in part a has been added. What is the pH of the solution at the equivalnce point
Consumers now commonly engage in a cultural audit : According to Starbucks Chairman Howard Schultz, "Consumers now commonly engage in a cultural audit of [product and service] providers. People want to know your value and ethics demonstrated by how you treat employees, the community in which you..
Explain what is the mass load of the soda ash : Na2CO3 + CaSO4 --> CaCO3 + Na2SO4 Assuming that this reaction is complete and that there is 153mg/l of CaSO4 initially present, what is the mass load of the soda ash taht must be added to complete the reaction in:
Business-to-business organizations are marketing : Today, many business-to-business (B2B) organizations are marketing their products to companies and organizations where the "buyer" is not a single individual. Instead, there may be a variety of people or stakeholders including product users, a..
Evaluate the acitivation energy for the decomposition : Calculate the acitivation energy for the decomposition. b) To test solubility, 0.020 mol of solid lead iodide, PbI2, is added to 0.500 L of water. after eqilibrium has been established 0.00076 mol of Pb^2+ (aq) and 0.00152 mol of I^- (aq) are pres..

Reviews

Write a Review

Chemistry Questions & Answers

  Define how many kilograms does it take to sink a model barge

how many kilograms does it take to sink a model barge with the following measurements in a calm pool; 300.00 cm * 25.00 cm * 68.00 cm with a mass of 850.0 grams

  Methanol and water or acetone are viable solvent systems

Water/methanol and water/acetone are viable solvent systems for recrystallization, but water/chloroform and water/pentane are not

  Define the relative acid strengths of pairs of acids

Select all of the correct statements about the relative acid strengths of pairs of acids from the choices below. HCl is a stronger acid than H2S because Cl is more electronegative than S.

  How many grams of nickel nitrate is required

How many grams of nickel nitrate, Ni(NO3)2, must be dissolved to prepare 200 mL of a 0.152 M aqueous solution of the salt.

  Evaluate the normality of the acid

A 15.0 mL sample of an acid requires 37.3 mL of 0.303N NaOH for neutralization. Calculate the normality of the acid.

  What are the phosphorus percentage of the monohydrate

MgNH4PO4.6H2O loses H2O stepwise as it is heated. Between 40c and 60 the monohydrate is formed, and above 100 celcius the anhydrous material is formed.What are the phosphorus percentage of the monohydrate and of the anhydrate material?

  Explain white phosphorus spontaneously flare up on air

Why will white phosphorus spontaneously flare up on air and red phosphorus won't? Please explain the connection with chemical structures

  State what are the various parameters changed performing

what are the various parameters that can be changed performing MASCOT. how could them affects probability score, any one know about this

  If the initial volume of the container before any reaction

at a fixed temperature equal moles of n2 g and f2 g are mixed in a constant pressure container the volume of the

  How much energy is required

how much energy is required to vaporize 48.7 g of CH2Cl2 at its boiling point if its Hvap = 31.6 kg/mol

  Define the structure of the major and minor organic products

Give the structure of the major and minor organic products formed when HBr reactw with (E)-4,4-dimethyl-2-pentene in the presence of peroxides.

  How many grams of the solid can be formed

How many grams of the solid can be formed from 268 g of calcium nitrate and 115 g of phosphoric acid?

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