HOW MANY MOLES OF CALCIUM IS 139g OF Ca?
mol = grams/atomic mass
To determine the number of moles of calcium (Ca) in a given mass, you need to use the concept of molar mass, which represents the mass of one mole of a substance. The molar mass of calcium can be found on the periodic table, and it is approximately 40.08 grams per mole.
To calculate the number of moles, divide the given mass of calcium (139 grams) by the molar mass of calcium:
Number of moles = Mass of calcium / Molar mass of calcium
Number of moles = 139 g / 40.08 g/mol
Now, let's calculate it:
Number of moles = 3.472 moles
Therefore, 139 grams of calcium is equivalent to approximately 3.472 moles of calcium.