Question:
Which of the following is the correct relation for \( A_m \)?
Which of the following is the correct relation for \( A_m \)?
Show Hint
When dealing with relations involving \( A_m \), remember that it refers to molar absorptivity or activity in a solution. Look for reactions that make sense based on chemical interactions.
Updated On: Mar 27, 2026
- \( A_m(H_2O) + A_m(NaOH) - A_m(NaCl) \rightarrow H_2O \)
- \( A_m(HNO_3) + A_m(Ba(OH)_2) - A_m(Ba(NO_3)_2) \)
- \( A_m(HNO_3) + A_m(NaNO_3) - A_m(NaOH) \)
- \( A_m(HCl) + A_m(NH_4Cl) - A_m(NH_4OH) \)
Show Solution
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The Correct Option is A
Solution and Explanation
Step 1: Understanding the Reaction.
We are asked to find the correct relation for \( A_m \). This involves understanding the properties of different solutions and their effects on the system.
Step 2: Analyzing the Options.
- (A) \( A_m(H_2O) + A_m(NaOH) - A_m(NaCl) \rightarrow H_2O \) is the correct relation. This shows the interaction between water, sodium hydroxide, and sodium chloride.
- (B) Involves an acid-base reaction, but it is not the right relation for \( A_m \).
- (C) Involves a different set of acids and bases but doesn't match the required relation.
- (D) Involves ammonium chloride and ammonium hydroxide, which is also not the correct relation.
Step 3: Conclusion.
The correct answer is (A) \( A_m(H_2O) + A_m(NaOH) - A_m(NaCl) \rightarrow H_2O \).
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