Answer:
192 grams NaCl
Step-by-step explanation:
To find the mass of NaCl, you need to multiply the number of moles by the molar mass of NaCl. The molar mass is made up of the individual atomic masses of each atom (Na and Cl) within the molecule (NaCl). It is important to arrange the conversion in a way that allows for the cancellation of units (moles should be in the denominator to cancel the unit of the given value). The final answer should have 3 sig figs like the given value (3.28 = 3 sig figs).
Atomic Mass (Na): 22.990 g/mol
Atomic Mass (Cl): 35.453 g/mol
Molar Mass (NaCl): 22.990 g/mol + 35.453 g/mol
Molar Mass (NaCl): 58.443 g/mol
3.28 moles NaCl 58.443 grams
----------------------------- x ------------------------ = 192 grams NaCl
1 mole