What is the mass of .1 mole of magnesium atoms?
We're asked to find the mass of
To solve this, along with any mass-to-mole conversion, we need to know the molar mass of the substance.
On most periodic tables, for each element there is a mass number under the element's symbol. This is the mass of one mole of that element, called its molar mass. For magnesium, this is
Using dimensional analysis, we can convert the given mole number (