Iodic Acid and Ion Charges

The video tutorial explains how to write the formula for iodic acid. It begins by identifying that acids typically start with hydrogen. Since iodic acid does not have 'hydro' in its name, it involves three elements, including a polyatomic ion. The stem 'iod' and the ending 'ic' are used to identify the iodate ion, IO3-. The charges are balanced by combining H+ and IO3- to form HIO3, the formula for iodic acid.

What is the first element that typically appears in the formula of an acid?

• Hydrogen

• Nitrogen

• Carbon

• Oxygen

Why does iodic acid not have 'hydro' in its name?

• It involves a polyatomic ion

• It contains a metal

• It is a simple binary acid

• It is a base

What is the significance of the 'ic' ending in iodic acid?

• It indicates a single element

• It suggests a lower oxidation state

• It implies the presence of a polyatomic ion

• It denotes a gaseous state

What is the formula of the iodate ion?

• IO-

• IO2-

• IO3-

• IO4-

How do you determine the charge of the iodate ion?

• By checking the periodic table

• By using a table of ions

• By calculating the atomic mass

• By measuring the pH

What is the charge of hydrogen in the periodic table?

• 1+

• 2+

• 1-

• 0

What is the final formula for iodic acid after balancing the charges?

• HIO4

• HIO2

• HIO

• HIO3