The ph of a solution containing 0.818 m acetic acid
(ka1.76*10-5) ans 0.172 m sodium acetate is?

Explanation:

It is known that the relation between pH and is as follows.

              pH =

and,    

Hence, first we will calculate the value of as follows.

                               =

                               = 4.75

Now, we will calculate the value of pH as follows.

              pH =

                    =      

                    = 4.75 + (-0.677)

                    = 4.07

Therefore, we can conclude that the pH of given solution is 4.07.

chemical digestion occurs in the stomach were hcl and pepsin forms chyme, the mouth in which salivary amylase breaks down starch to form bolus, and the small intestine specifically the duodenum.

substituting a hydrogen atom with a halogen in a hydrocarbon:

- the single bond remains single. a is wrong.

- the bond with hydrogen is as strong as with a halogen. c is wrong

- a hydrocarbon is saturated if there is no double bond. we do not know that so d is wrong.

- carbon will always have four valence electrons. e is wrong.

by elimination, the correct answer is b. the boiling point of the new compound increases.