Define what is the ph at the equivalence point

Assignment Help Chemistry
Reference no: EM13489275

A 25.0 mL sample of 0.20 mol L-1 HNO2(aq) is titrated with 0.20 mol L-1 KOH(aq) at 25oC. What is the pH AT THE Equivalence point?(FOR HNO2,Ka=4.50x10^-4 at 25oC)

Reference no: EM13489275

Questions Cloud

Determine the average distance of comet halley : Comet Halley has an orbital perios of 75 years and when it enters the inner Solar System, it passes within a few AU of the Sun. Determine the average distance of Comet Halley
Define what is the equilibrium constant kc for the reaction : What is the equilibrium constant Kc for the reaction below. Assume temperature is 25oC. ( Represent the reaction below as a sum of reactions and then combine the corresponding K values to obtain Kc for the reaction below.)
Find the resulting angular acceleration of the rod : A uniform rod of mass 4.2 kg and a length of 1.0 m is hinged to a wall at the left end and held in a horizontal position by a taut string. find the resulting angular acceleration of the rod
Evaluate the delta h for the reaction : If the specific heat of the solution is 4.18 J/g(g*degreesC), calculate delta H for the reaction, as written. Ba(s) + 2H2O(l) = Ba(OH)2 (aq) + H2 (g) Delta H=?
Define what is the ph at the equivalence point : A 25.0 mL sample of 0.20 mol L-1 HNO2(aq) is titrated with 0.20 mol L-1 KOH(aq) at 25oC. What is the pH AT THE Equivalence point?(FOR HNO2,Ka=4.50x10^-4 at 25oC)
Find the temperature of the gas and the final pressure : An ideal gas is brought through an isothermal compression process. what are the temperature of the gas and the final pressur
Explain how many moles of hcl or naoh are required : Add HCl or NaOH to 1.00 L of 1.00 mol L-1 HA(aq) to obtain a solution with a pH of 4.00 at 25oC? How many moles of HCl or NaOH are required
Explain solution of a weak monoprotic acid : The pH of a 0.010 mol L-1 solution of a weak monoprotic acid is 2.09 at 25oC. What is the pKa for this acid
Discuss the general and specific risks facing the yaslike : Identify and discuss the general and specific risks facing the Yaslike Ltd group from a treasury perspective. Your discussion should include the potential treasury risks associated with obtaining a loan from Wolfgang Engineering GmbH.

Reviews

Write a Review

Chemistry Questions & Answers

  State electrons are transferred between the cation and anion

How many electrons are transferred between the cation and anion to form the ionic bond in one formula unit of each compound? (1 electrons, 2 electrons, 3 electrons, 4 electrons)

  Calculate the wavelength of the photon emitted

Find the mathematical relationship that relates energy of a photon emitted as an electron relaxes from a higher energy level to a lower energy level in a hydrogen atom. Use this equation to calculate the wavelength of the photon emitted in units o..

  Explain co2(g) leaves the solution without reacting

What was the percentage by mass of Mg(OH)2 in the original sample? [Hint: When Mg(OH)2 or Al(OH)3 reacts with HCl(aq), the products are a chloride salt, water and CO2(g). Assume that all of the CO2(g) leaves the solution without reacting.]

  Compute the change in enthalpy of the process

A gas undergoes a process that leads to a change in internal energy of 4.5 J, while simultaneously work in the amount of 17.6 J is performed by the gas at constant pressure. Calculate the change in enthalpy of this process.

  What volume (in cm3) would be occupied by osmium

Osmium has a density of 22.6 g/cm3. What volume (in cm3) would be occupied by a 21.8 g sample of osmium?

  Explain hydrogen gas saturated with water vapor

1) What volume (mL) of Hydrogen gas, saturated with water vapor, will be obtained from a 0.1138g sample of alloy which is 73.2 percent Al? (Pbar=754.3 torr, T=21.2deg C) Show your work. 2) What volume (in mL) will the dry hydrogen gas from questio..

  Calculate the moles of argon present

A 322 mL container holds 0.146 g of Ne and an unknown amount of Ar at 35°C and a total pressure of 635 mmHg. Calculate the moles of Ar present.

  A mixture of 00319 g hydrogen and 00178 mol oxygen in a

a mixture of 0.0319 g hydrogen and 0.0178 mol oxygen in a closed container is sparked to initiate a reaction. how many

  Explain what is the total pressure in a container

What is the total pressure in a 10.0 L container that contains 0.56 g of SF6, 2.3 g of NO, and 1.23 X 10^23 g of Co molecules at 300K

  How to compute the equilibrium constant

Using information from the table of Standard Thermodynamic Data, calculate the equilibrium constant, Keq, for the reaction given below at 298 K.

  State half-equivalence point of a titration occurs half way

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.

  Define when the gases are allowed to mix together

Container A holds 727 mL of ideal gas at 2.20 atm. Container B holds 134 mL of ideal gas at 4.20 atm. If the gases are allowed to mix together

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