2Na + Cl2 --> 2NaCI If 24.90 gram of sodiurn reacts, how many mols of sodium chloride will be produced?

 0.14 kg

Explanation:

Gourmet chocolate candy contains 7.00 g of dietary fat in each 22.7-g piece

That is 1 piece of candy weighs 22.7 g and contains 7.00 g of dietary fat

Converting the mass in pounds to kg  

1 lb = 0.45 kg = 450 grams    (1kg=1000g)

Number of pieces =

1 piece contains = 7 g of dietary fat

Thus 30 pieces would contain = of dietary fat

1 g = 0.001 kg

Thus 140 grams =

Thus 0.14 kg of dietary fat are in a box containing 1.00 lb of candy.