Sodium Citrate and Chemical Symbols

The video tutorial explains how to write the formula for sodium citrate, starting with identifying sodium and the polyatomic citrate ion. It discusses the ionic charge of the citrate ion and the need to balance it with sodium ions to form the compound. The tutorial also covers the molecular structure of sodium citrate and its relation to citric acid, concluding with the official IUPAC name, trisodium citrate.

What is the chemical symbol for sodium?

• S

• Na

• Sd

• So

Which of the following is a polyatomic ion?

• Hydrogen

• Citrate

• Chloride

• Sodium

What is the chemical formula for the citrate ion?

• C5H7O6

• C6H8O7

• C7H5O6

• C6H5O7

How many sodium ions are needed to balance the charge of one citrate ion?

• One

• Two

• Three

• Four

What is the official IUPAC name for sodium citrate?

• Disodium Citrate

• Monosodium Citrate

• Tetrasodium Citrate

• Trisodium Citrate

Why is sodium citrate sometimes referred to as trisodium citrate?

• Because it contains three oxygen ions

• Because it contains three sodium ions

• Because it contains three citrate ions

• Because it contains three hydrogen ions

What would sodium citrate be called if sodium ions were replaced with hydrogen ions?

• Hydrochloric Acid

• Citric Acid

• Sodium Chloride

• Sodium Hydroxide

What is the relationship between citric acid and the citrate ion?

• They are completely unrelated

• Citric acid is a form of citrate ion

• Citrate ion is a byproduct of citric acid

• Citrate ion is a form of citric acid

How are the sodium atoms bonded to the citrate ion in sodium citrate?

• Hydrogen bonding

• Ionically

• Covalently

• Metallically