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LUCKY_DIMON [66]
1 year ago
13

The ammonium ion has one nitrogen atom and four hydrogen atoms.

Chemistry
1 answer:
Rainbow [258]1 year ago
5 0

Answer:

1.) NH₄

Explanation:

Atoms are depicted by letters in chemical formulas. Nitrogen atoms are represented by the letter "N" and hydrogen atoms are represented by the letter "H". One letter indicates one atom.

As such, if there is 1 nitrogen atom and 4 hydrogen atoms in ammonium, the chemical formula is NH₄.

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Answer:

3.6 × 10⁻⁵ M

Explanation:

Ergosterol has a maximum absorbance at λ = 282 nm. The absorbance of an analyte is related to its concentration through the Beer-Lambert's law.

A = ε × <em>l</em> × c

where,

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A solution has an absorbance of 0.2 with a path length of 1 cm. Given the molar absorptivity coefficient is 59 cm⁻¹ M⁻¹, the molarity is 0.003 M.

<h3>What does Beer-Lambert law state?</h3>

The Beer-Lambert law states that for a given material sample, path length and concentration of the sample are directly proportional to the absorbance of the light.

A solution has an absorbance of 0.2 with a path length of 1 cm. Given the molar absorptivity coefficient is 59 cm⁻¹ M⁻¹, we can calculate the molarity of the solution using the following expression.

A = ε × b × c

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where,

  • A is the absorbance.
  • ε is the path length.
  • b is the molar absorptivity coefficient.
  • c is the molar concentration.

A solution has an absorbance of 0.2 with a path length of 1 cm. Given the molar absorptivity coefficient is 59 cm⁻¹ M⁻¹, the molarity is 0.003 M.

Learn more about the Beer-Lambert law here: brainly.com/question/12975133

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