Here's how to calculate the grams of NaCl in 10.00 moles:

1. Find the molar mass of NaCl:

* Sodium (Na) has a molar mass of 22.99 g/mol

* Chlorine (Cl) has a molar mass of 35.45 g/mol

* Total molar mass of NaCl = 22.99 g/mol + 35.45 g/mol = 58.44 g/mol

2. Use the molar mass to convert moles to grams:

* 10.00 moles NaCl * (58.44 g NaCl / 1 mol NaCl) = 584.4 g NaCl

Therefore, there are 584.4 grams of NaCl in 10.00 moles.