0
To calculate the number of moles of sodium carbonate in 212g, you need to first determine the molar mass of Na2CO3 (sodium carbonate). The molar mass of Na2CO3 is 105.99 g/mol. Then, you divide the given mass (212g) by the molar mass to find the number of moles (212g / 105.99 g/mol = 1.999 moles).
Add your answer:
Earn +20 pts
How do ypu determind the mass of a mole of a compound?
Step 1: observe the formula for that compound. Count up the number of elements in the formula of each component element. Step 2: look at the periodic table. Multiply the elements' atomic masses by the number of them in the formula. Step 3: add it all up. That's the mass of 1 mole of that compound. It's called the compound's "molar mass" and the correct unit is grams per mole (g/mol). Example: K3PO4 (potassium phosphate). 3 potassiums at 39 each, 1 phosphorus at 31, and 4 oxygens at 16 each = 212g/mol.
