Discrepency between the actual ph of the buffer

Assignment Help Chemistry
Reference no: EM13171675

Explain possible reason for discrepency between the actual pH of the buffer and the reported pKa of the weak acid. (My case: actual pH =9.23, reported pKa =9.25)

Reference no: EM13171675

Questions Cloud

What is the maximum mass of cus : What is the maximum mass of CuS which can be formed when 38.0 mL of 0.500 M CuCl2 are mixed with 42.0 mL of 0.600 M (NH4)2S? Aqueous ammonium chloride is the other product.
Calculate the ph at the equivalence point : Calculate the pH at the equivalence point in a 0.10 M acetic acid/0.10 M sodium hydroxide titration when 27.4 mL of NaOH was used in titration.
Identify a and b, and write the reactions : write the reactions. Also, identify the minor alkene product,C.
Explain when the temperature is increased : When the temperature is increased from 164.5°C to 179.0°C, the rate constant increases by a factor of 4.27. What is the activation energy of this oxidation reaction?
Discrepency between the actual ph of the buffer : Explain possible reason for discrepency between the actual pH of the buffer and the reported pKa of the weak acid. (My case: actual pH =9.23, reported pKa =9.25)
Current trends in e-commerce technology-infrastructure : Written report which examines current trends in e-commerce technology, infrastructure, and development. Include the key technology infrastructure components in your paper. Also include web server software, e-commerce software, technology for mobile c..
Compute the molar mass of the unknown compound : the solution is 0.55°C lower than the melting point of pure Camphor. Calculate the molar mass of the unknown compound
How many kilocalories are released by the combustion : If 3.8 kcal is released by combustion of each gram of glucose, how many kilocalories are released by the combustion of 1.41 mole of glucose?
Compute the percent copper in the solid sample : he endpoint of the titration was 9.98mL. Calculate the percent copper in the solid sample.

Reviews

Write a Review

Chemistry Questions & Answers

  Explain why triethylamine is a weaker base

Explain why triethylamine is a weaker base than dimethylamine or methylamine.

  Calculate the mass of benzene

The density of benzene at 15C is 0.8787 g/mL. Calculate the mass of 0.1500 L of benzene at this temperature.

  What is the vapor pressure of the benzene

Suppose you add 4.25 g of naphthalene, C10H8, to 67.9 g of benzene, C6H6, and they form an ideal solution. The vapor pressure of pure benzene is 0.1252 atm at the temperature of the experiment.

  What mass of c4h6 in grams is consumed

What mass of C4H6 in grams is consumed in the reaction below when 36.9 grams O2 (g) are also consumed?

  Calculate the ph of the solution

Hydrofluoric acid dissociates in water as represented by the above equation With Ka = 7.2 * 10^-4

  How much naoh is needed each day

NaOH + CO2 - >Na2CO3 + H2O. If the average human body discharges 716 g of CO2 per day, how much NaOH is needed each day for each person in the spacecraft? Answer in units of mol.

  How much energy in joules would be absorbed

The density of liquid oxygen at its boiling point is 1.14 kg/L , and its heat of vaporization is 213 kJ/kg . How much energy in joules would be absorbed by 4.0 L of liquid oxygen as it vaporized?

  Explain ideally tomatoes are planted in a square grid

Maria wants to plant a small tomato garden in her yard. She bought 25 tomato plants, and she has read that ideally tomatoes are planted in a square grid

  Compute the standard-state entropy

Calculate the standard-state entropy for the following reaction: 1 \rm CH_4(g) + 2 \rm O_2(g) \longrightarrow 1 \rm CO_2(g) + 2 \rm H_2O(l) (If applicable, coefficients of one have been included for clarity.)

  What is the identity of the other isotope

Silver has two isotopes and an average atomic mass of 107.87 amu. If 48.18% of Ag exists as Ag-109 (108.9047 amu), what is the identity of the other isotope?

  What is its exact molar mass

The simplest formula of a substance is found to be CH2O, and its approximate molar mass is found by experiment to be 93 g•mol-1. What is its exact molar mass?

  What is the concentration of the resulting solution

If 3.0 Ml of distilled water is added to 2.0 ml of 0.35M CoCl2 solution, what is the concentration of the resulting solution.

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