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3. A soluble complex MX+ dissociates according to the reaction: MX+ \(\rightleftharpoons\) M? + X • The metal ion, M?, and the ligand, X, do not absorb at 560 nm but the complex MX+ does. • A solution that was known to be 2.10 \(\times\) 10? M in MX+ had an absorbance of 0.481 at 560 nm in a 1-cm cell. • Another solution was prepared by taking 10 ml of 1.28 \(\times\) 10³ M M? and 10 ml of 1.31 \(\times\) 10³ M X and diluting to exactly 100 ml. If the absorbance of this solution was 0.278, calculate the formation constant for the complex MX+. (10 marks)

          3. A soluble complex MX+ dissociates according to the reaction: MX+ \(\rightleftharpoons\) M? + X
• The metal ion, M?, and the ligand, X, do not absorb at 560 nm but the complex MX+
does.
• A solution that was known to be 2.10 \(\times\) 10? M in MX+ had an absorbance of 0.481 at
560 nm in a 1-cm cell.
• Another solution was prepared by taking 10 ml of 1.28 \(\times\) 10³ M M? and 10 ml of 1.31
\(\times\) 10³ M X and diluting to exactly 100 ml. If the absorbance of this solution was
0.278, calculate the formation constant for the complex MX+.
(10 marks)

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3. A soluble complex MX+ dissociates according to the reaction: MX+ ⇌ M? + X
• The metal ion, M?, and the ligand, X, do not absorb at 560 nm but the complex MX+
does.
• A solution that was known to be 2.10 × 10? M in MX+ had an absorbance of 0.481 at
560 nm in a 1-cm cell.
• Another solution was prepared by taking 10 ml of 1.28 × 10³ M M? and 10 ml of 1.31
× 10³ M X and diluting to exactly 100 ml. If the absorbance of this solution was
0.278, calculate the formation constant for the complex MX+.
(10 marks)

Added by Kelly T.

Chemistry: Structure and Properties

Nivaldo Tro 2nd Edition

Instant Answer

Solved by Expert Adi S

08/29/2023

Step 1

We can determine the molar absorptivity (ε) using the data from the first solution: A₁ = 0.481 l = 1 cm c₁ = 2.10 x 10⁻⁴ M ε = A₁ / (lc₁) = 0.481 / (1 cm * 2.10 x 10⁻⁴ M) = 2290.48 M⁻¹cm⁻¹ Show more…

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3. A soluble complex MX+ dissociates according to the reaction: MX+ $\rightleftharpoons$ M⁺ + X • The metal ion, M⁺, and the ligand, X, do not absorb at 560 nm but the complex MX+ does. • A solution that was known to be 2.10 X 10⁻⁴ M in MX+ had an absorbance of 0.481 at 560 nm in a 1-cm cell. • Another solution was prepared by taking 10 ml of 1.28 X 10⁻³ M M⁺ and 10 ml of 1.31 X 10⁻³ M X and diluting to exactly 100 ml. If the absorbance of this solution was 0.278, calculate the formation constant for the complex MX+. (10 marks)

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