If 76g of sodium reacts with chlorine to produce 214g of sodium chloride, how many grams of chlorine reacted?

138g

Explanation:

According to this question, sodium reacts with chlorine to form sodium chloride as follows:

Na(s) + Cl(g) → NaCl (aq)

According to the law of conservation of mass, matter can neither be created nor destroyed, but can only be transferred from one form to another. This means that the mass of the reactants in a chemical reaction must equate the mass of products of that reaction.

Hence, If 76g of sodium reacts with chlorine to produce 214g of sodium chloride, this means that to obey the law of conservation of mass, the mass in grams of chlorine that reacted is 214g - 76g = 138g

In this sense, the combined 76g of sodium and 138g of chlorine (reactants) will equate the 214g of sodium chloride (products) in obeisance to law of conservation of matter.

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