Sodium Compounds and Molecular Weight

The video tutorial explains how to calculate the molar mass of sodium chloride (NaCl). It begins by ensuring the correct chemical formula is used, considering the charges of sodium and chlorine ions. The tutorial then demonstrates how to find the atomic masses of sodium and chlorine on the periodic table and add them to determine the molar mass of NaCl, which is 58.44 g/mol. The video concludes with a thank you from Dr. B.

What is the charge of sodium (Na) in the NaCl compound?

• Negative one

• Positive one

• Negative two

• Positive two

Why is it important to ensure the net charge of a compound is zero?

• To increase the compound's mass

• To ensure the compound is stable

• To change the compound's color

• To make the compound more reactive

What is the atomic mass of sodium (Na) as found on the periodic table?

• 35.45 g/mol

• 22.99 g/mol

• 58.44 g/mol

• 1.01 g/mol

How do you calculate the molecular weight of NaCl?

• By multiplying the atomic masses of Na and Cl

• By subtracting the atomic mass of Cl from Na

• By dividing the atomic mass of Na by Cl

• By adding the atomic masses of Na and Cl

What is the final molecular weight of NaCl?

• 58.44 g/mol

• 44.01 g/mol

• 35.45 g/mol

• 22.99 g/mol