Chem/Phys

Question 1

e=unit of charge
(Proton)

Answer 1

1.6 x 10^-19 C

Question 2

Structure of Element in periodic table

Answer 2

Up-Atomic number (#proton)

Middle- Elementary symbol (name)

Down-Atomic weight

Question 3

Structure of Element in periodic table

Answer 3

Up-Atomic number (#proton)

Middle- Elementary symbol (name)

Down-Atomic weight

Question 4

Ka > Kb

Answer 4

Solution is acidic, a greater amount of water is hydrolyzed by the cationic acid than the anionic base.

Question 5

Kb > Ka

Answer 5

Solution is basic, a greater amount of water is hydrolyzed by the anionic base than the cationic acid.

Example: Kb for bicarbonate ion is 2.4 x 10-8 and the Ka for ammonium ion is 5.6 x 10-10. Since Kb is higher than Ka the solution will be slightly basic.