Consider the balanced equation. PCl sub 3 plus Cl sub 2 rightarrow PCl sub 5 What is the mole ratio of PCl sub 3 to PCl sub 5 ?
Answer
A
1 point 1
B
2 point 1
C
3 point 5
D
5 point 3
Explanation
The balanced equation is PCl₃ + Cl₂ → PCl₅. The coefficients of PCl₃ and PCl₅ are both 1, so 1 mole of PCl₃ produces 1 mole of PCl₅. The mole ratio is 1:1, choice A.
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