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A students finds a FeNO3 . 3H2O solution with a 1.8 concentration . She uses a a 2 cm wide cuvette in a colorimeter to measure the absorbance. The molar absorptivity of CuSO4 . 5H2O is 42.243 M-1cm-1

What is the Absorbance of the solution?

Sagot :

Samueladesida43idn

The absorbance of a solution that has a concentration of 1.8 is 152.75.

How to calculate absorbance?

The absorbance of a substance can be calculated using Beer's law equation as follows:

A = εmCl

Where;

  • A = absorbance
  • εm = molar absorptivity
  • C = concentration of solution
  • l = path length

According to this question, the following information are given:

  • A = ?
  • εm = 42.243 M-1cm-1
  • C = 1.8
  • l = 2cm

A = 42.43 × 1.8 × 2

A = 152.75

Therefore, the absorbance of a solution that has a concentration of 1.8 is 152.75.

Learn more about absorbance at: https://brainly.com/question/6838193

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