Question

1 a)Evaluate ions or salts for acid/base characteristics.

b) Determine pH of salt solutions.

c) Determine if the conjugate of a polyprotic acid is acidic or basic. 1

d) Relate acid strength to molecular structure for oxyacids.

e) Recognize Lewis Acids and Bases and understand how they differ from other acids and bases.

Answer 1

A) characteristics. of acid------an acid is a chemical substance that produce hydrogen ion ,H⁺ In water solution.

characteristics. of base----an base is a chemical substance that produce hydroxide ion ,OH^- In water solution.

example-- HCL ------> H ⁺ + CL^-

^B)  ph calculate both acid and base-----

acid-when acid are dissolved water solution the the PH of acid must be lower than 7

acid PH<7

Base Ph -- when bases are dissolved water the base PH must be higher than 7 and maximum 14

base Ph value 7 to 14

c) i can easily notice at anion , in order at polyprotic more than one H⁺ proton.

we can look at anion of the acid to see weather it is polyprotic or not. the anon of polyprotic acid are most common polyprotic base. the product of the neutralization of a strong base and weak acid its anion is called conjugate base os week acid.

d) contain oxYgen (O₂)

Contain at least another element

at least a hydrogen atom which is bounded to oxygen

an ion is loss of one or more protons in solution

e) one of the most important applicable theories is the lewis acid/base that definition of an acid and base beyond H^{+ and} OH^_ as described.

A⁺ + B^_ = A--B

A⁺  Lewis acid------accept electron from lewis base

B^_ IS lewis base----donate electron from lewis acid