Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
(a) Explain in terms of ionic equilibria why the aqueous solution of a salt derived from a weak acid and a strong base (e.g. sodium phenolate) has a pH greater than 7.
(b) By considering the equilibrium constant (Ka) of a weak acid, and the effect on Ka when a salt of that acid is added to the solution, derive the Henderson-Hasselbalch equation for buffer solution pH.
(c) Explain why the Henderson-Hasselbalch equation sometimes features a term written as + log10 gA- where gA- represents the activity coefficient of the common anion, and hence describe the effect of increasing the concentration of both the acid and salt in the buffer formulation on buffer performance.
(d) An aqueous buffer solution is formulated containing 0.010 mol dm-3 sodium phenolate to which phenol is added. Given that the pKa of phenol is 9.98, calculate the concentration of phenol required to produce a pH of exactly 9.65 (you may assume that gA- = 1).
Semisynthetic polymers These polymers are mainly derived from naturally taking place polymers by chemical changes. Since cellulose is naturally taking place polymers, cellulose
Potentiometric titration
Applications of radiometric titration in pharmaceutical industry #
Heat Conductivity When considering the design of houses, the heat conductivity by walls, roofs, and the floor plays an significant role. The heat conductivities (λ) of some bui
Q. How is true exhausted Zeolite bed regenerated? Give the merits and demerits of Zeolite process. OR
Q. What are the Subatomic Particles? Ans: What does the inside of atom look like? Following Dalton's discovery that all matter was composed of atoms, scientists wondered i
If 4.5 grams of Nitrogen reacted with 2.6 grams of Hydrogen, identify the following: Limiting Reactant- Excess Reactant- and Theoretical Yield:
The shape of 2p orbital is ; (1) Spherical (2) Ellipsoidal (3) Dumb-bell (4)Pyramidal ans: Dumb-bell
Q. Determine the peroxide value in the of fat? After undertaking this activity, you will be able to: • determine the peroxide value in a given sample of fats/oils, and •
details about electronegativity
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!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd