7.3 Calculations Using Molar Mass

7.3 Calculations Using Molar Mass

• If you want to convert between grams and moles, use the molar mass.

• One of the most useful conversion factors in chemistry is the molar mass of an element.

• The molar mass of silver is used as a conversion factor in the Ag Sample Problem 7.4.

• In the manufacture of jewelry, mirrors, and dental alloys, silver metal is used.

• The given and needed quantities should be stated.

• It is possible to make jewelry out of silver metal.

• There is a plan to convert moles to grams.

• Write conversion factors if you want to determine the molar mass.

• The problem should be to convert moles to grams.

• The conversion factors are written from the mass.

• We can change moles to grams, or grams to moles, using the conversion factors derived from the compound shown in Sample Problem 7.5.

• The given and needed quantities should be stated.

• There is table salt.

• There is a plan to convert grams to moles.

• Write conversion factors if you want to determine the molar mass.

• The problem should be to convert grams to moles.

• CaCO3 is found in one tablet of an antacid.

• There are more moles and atoms in that compound.