Question
Question 3 In a synthesis reaction, 4.0 g of hydrogen reacts with chlorine to produce 146g of hydrogen chloride according to the following balanced equation H_(2)+Cl_(2)arrow 2HCl Use the Law of Conservation of Mass to calculate how many grams of chlorine reacted. A) 150 B) 1468 C) 142 g D) 4.08
Answer
4.7
(273 Votes)
Honor
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Answer
C) 142 g
Explanation
The Law of Conservation of Mass states that mass is neither created nor destroyed in a chemical reaction. Therefore, the total mass of reactants must equal the total mass of products. Here, we know the mass of hydrogen and the mass of hydrogen chloride produced. We can calculate the mass of chlorine by subtracting the mass of hydrogen from the mass of hydrogen chloride.