### Educational Content on Nickel(II) Ion Absorbance**Question:**Given the absorbance spectrum shown below, what wavelength of light would you use for nickel(II) ion? Explain your answer.**Graph Title:**Absorbance vs. Wavelength for Nickel(II) Ion**Graph Description:**- **X-Axis (Horizontal):** Represents the wavelength in nanometers (nm) ranging from 350 nm to 850 nm.- **Y-Axis (Vertical):** Represents absorbance, ranging from 0 to 1.**Graph Details:**The absorbance spectrum shows a curve with significant peaks and troughs:1. **Primary Peak:** The most prominent peak occurs around 395 nm where the absorbance reaches close to 1. This indicates the highest absorbance at this wavelength. 2. **Secondary Features:** There is a noticeable increase around 700 nm, but the absorbance is lower compared to the primary peak.**Conclusion:**For analyzing nickel(II) ions, the best wavelength to use would be around 395 nm, as this is where maximum absorbance occurs, allowing for the most sensitive detection of the ions.

Absorbance is defined by the amount of light absorbed by the sample at a particular wavelength. In spectrophotometer we can measure the absorbance values of any sample at different wavelengths. According to Beer–Lambert law, absorbance can also be written in mathematical form i.e. A = εcl ε is the molar extinction coefficient of the sample c is the concentration of the sample l is the path length i.e. the length travelled by light in spectrophotometer λmax is the particular wavelength at which the sample absorbs maximum light and showing maximum absorbance. At this wavelength, the sample shows maximum sensitivity towards light. According to Beer–Lambert law absorbance A is directly proportional to the concentration of the sample. So if we use the particular wavelength at which it shows maximum absorbance, λmax, we can measure the absorbance even at very low concentration of the sample. So, we always use λmax during the measurement of absorbance by spectrophotometer to avoid all the relative error in the experiment. In this given graph, (absorbance vs wavelength), λmax is near about to 395 nm. Because at 395 nm, the Ni(II) sample is showing highest peak i.e. maximum absorbance. Hence we will use the wavelength 395 nm in this experiment.

Science

Chemistry

) Given the absorbance spectrum shown below, what wavelength of light would you use for nickel(II) ion? Explain your answer. Absorbance 0.8 1 0.6 0.4 0.2 0 350 400 Absorbance vs. Wavelength for Nickel(II) ion 450 500 550 600 650 Wavelength (nm) 700 750 800 850

) Given the absorbance spectrum shown below, what wavelength of light would you use for nickel(II) ion? Explain your answer. Absorbance 0.8 1 0.6 0.4 0.2 0 350 400 Absorbance vs. Wavelength for Nickel(II) ion 450 500 550 600 650 Wavelength (nm) 700 750 800 850

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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