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  2. Matrix (chemical analysis) - Wikipedia

    en.wikipedia.org/wiki/Matrix_(chemical_analysis)

    In this technique, the response of the sample is measured and recorded, for example, using an electrode selective for the analyte. Then, a small volume of standard solution is added and the response is measured again. Ideally, the standard addition should increase the analyte concentration by a factor of 1.5 to 3, and several additions should ...

  3. Job plot - Wikipedia

    en.wikipedia.org/wiki/Job_plot

    Within chemistry, a Job plot, otherwise known as the method of continuous variation or Job's method, is a method used in analytical chemistry to determine the stoichiometry of a binding event. The method is named after Paul Job and is also used in instrumental analysis and advanced chemical equilibrium texts and research articles.

  4. Job fair - Wikipedia

    en.wikipedia.org/wiki/Job_fair

    A job fair, also commonly referred to as a job expo or career fair or career expo, is an event in which employers, recruiters, and schools give information to potential employees. Job seekers attend job fairs to speak face-to-face with potential employers, fill out résumés , and ask questions about the various positions available.

  5. Sample size determination - Wikipedia

    en.wikipedia.org/wiki/Sample_size_determination

    The sample size is an important feature of any empirical study in which the goal is to make inferences about a population from a sample. In practice, the sample size used in a study is usually determined based on the cost, time, or convenience of collecting the data, and the need for it to offer sufficient statistical power. In complex studies ...

  6. If You Make Fewer Than 3 Mistakes, It Means You Were ... - AOL

    www.aol.com/fewer-3-mistakes-means-were...

    The post If You Make Fewer Than 3 Mistakes, It Means You Were Really Good At Chemistry Back In School first appeared on Bored Panda. Show comments. Advertisement. Advertisement.

  7. Chemistry - Wikipedia

    en.wikipedia.org/wiki/Chemistry

    Chemistry is the scientific study of the properties and behavior of matter. [1] It is a physical science within the natural sciences that studies the chemical elements that make up matter and compounds made of atoms, molecules and ions: their composition, structure, properties, behavior and the changes they undergo during reactions with other substances.

  8. Lessons in Chemistry Ending, Explained Apple TV+ "Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Spoilers ahead for the ending of Lessons in Chemistry .

  9. Environmental chemistry - Wikipedia

    en.wikipedia.org/wiki/Environmental_chemistry

    Environmental chemists draw on a range of concepts from chemistry and various environmental sciences to assist in their study of what is happening to a chemical species in the environment. Important general concepts from chemistry include understanding chemical reactions and equations, solutions, units, sampling, and analytical techniques. [1]