Question

Sodium and Chlorine combine to form table salt. Given the chemical reaction, how many grams of 2Na + Cl2 would be required to produce 4 grams of table salt

Answer 1

according to the rules of correspondence.... the total mass of the reactants equals the total mass of the products.
Thus if 4 grams of Salt is produced then 4 grams of 2Na +Cl2 is required
ANS: 4 grams

Answer 2

To calculate the molecular mass of the chemical compound of sodium chloride (NaCl) is 58.44 g/mol.  

When given is the chemical formula 2Na(s) + Cl2(g) ------ 2 NaCl(s) = 2 mole of NaCl

Sodium chloride (NaCl) - Sodium chloride, also identified as salt, common salt, table salt or halite, is an ionic mixture with the formula NaCl, representing equal proportions of sodium and chloride

Names-Cleanoz, Na-zone  

Formula-NaCl  

Molar mass-58.44 g/mol  

Melting point-1,474°F (801°C)  

Density-2.16 g/cm³  

Soluble in-Ammonia, Methanol, and Water