Practice Problem: Conversions Using Avogadro's Number

The video tutorial explains how to use Avogadro's number for conversions. It covers two main problems: calculating the number of gold atoms in a 5 kg brick and determining the number of carbon atoms in a 40 mg sample of saccharin. The tutorial guides viewers through the conversion process, including converting mass to moles using molar mass and then to atoms using Avogadro's number. It also provides tips for simplifying calculations and adjusting scientific notation.

How many gold atoms are in a 5.0 kilogram brick of pure gold?

What is the molecular formula of saccharin?

How do you convert kilograms of gold to grams?

What is the molar mass of gold used in the calculations?

What is Avogadro's number and how is it used in these calculations?

How many carbon atoms are in a 40.0 milligram sample of saccharin?

How do you calculate the number of molecules from grams of saccharin?