Calculate the ph of the solution after addition of koh

Reference no: EM13702908

Problem- A buffer is prepared by mixing 0.25 mols of NaNO2 and 0.75 mols of HNO2 in 1.0 L of water. Calculate the pH of the solution after addition of 0.20 mols of KOH. The Ka for HNO2 is 4.3 x 10^-4.

Please provide step by step instructions as well as preferably solved through ICE chart method rather than Henderson-Hasselbach Equation.

Reference no: EM13702908

Questions Cloud

Calculate the molarity of c2o4^2- : Problem- Calculate the molarity of C2O4^2- in a 0.16M oxalic acid (H2C2O4) if Ka1=0.059, Ka2=6.5x10^-5, and Kw=1x10^-14. Answer in units of mol/L.

Define the electrolytic solution is present as ni2 : Problem- Purification of nickel can be achieved by electrorefining nickel from an impure nickel anode onto a pure nickel cathode in an electrolytic cell. How many hours will it take to plate 16.5 kg of nickel onto the cathode if the current passed..

What is the solubility of the diamine in each : Problem- The two solvents used in this polymerization are water and dichloromethane. What is the solubility os sebecoyl chloride in each ? and what is the solubility of the diamine in each?

What will be the volume of the same amount of gas : Problem- Q1) A gas occupies one litre under atmospheric pressure. What will be the volume of the same amount of gas under 750 mm of Hg at the same temperature

Calculate the ph of the solution after addition of koh : Problem- A buffer is prepared by mixing 0.25 mols of NaNO2 and 0.75 mols of HNO2 in 1.0 L of water. Calculate the pH of the solution after addition of 0.20 mols of KOH. The Ka for HNO2 is 4.3 x 10^-4.

Compare the standard cell potential e cell : Problem- Using standard reduction potential and cell potential to predict and explain which halogen, F2, Cl2, Br2, or I2, could NOT oxidize solid copper to form Cu 2+ ion? Consider the redox reaction (unbalanced) X2 + Cu --> Cu2+ +X- and compare t..

Calculate delta s of the universe and delta g : Problem- Calculate Delta S of the universe and Delta G of the system for the change in state that occurs when 2mol of an ideal gas at 300K occupying a volume of 24.6L expands isothermally against an opposing pressure of 1atm to reach equilibrium.

What would the freezing point be assuming full dissociation : Problem- If an aqueous solution of sodium chloride is calculated to freeze at -0.50oC if the particles were completely associated, what would the freezing point be assuming full dissociation

What is the molar mass of a material that has a mass : Problem- What is the molar mass of a material that has a mass of 0.155 g, and in a 250mL aqueous solution, has an osmotic pressure of 35.0 torr at 25oC

User Account

All Pages