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- https://chem.libretexts.org/Courses/Lakehead_University/Analytical_I/7%3A_Gravimetric_Methods/7.3%3A_Volatilization_GravimetryA second approach to gravimetry is to thermally or chemically decompose the sample and measure the resulting change in its mass. Alternatively, we can trap and weigh a volatile decomposition product. ...A second approach to gravimetry is to thermally or chemically decompose the sample and measure the resulting change in its mass. Alternatively, we can trap and weigh a volatile decomposition product. Because the release of a volatile species is an essential part of these methods, we classify them collectively as volatilization gravimetric methods of analysis.
- https://chem.libretexts.org/Courses/Los_Angeles_Trade_Technical_College/Analytical_Chemistry/2%3A_Analytical_Chemistry_2.0_(Harvey)/09%3A_Gravimetric_Methods/9.3%3A_Volatilization_GravimetryA second approach to gravimetry is to thermally or chemically decompose the sample and measure the resulting change in its mass. Alternatively, we can trap and weigh a volatile decomposition product. ...A second approach to gravimetry is to thermally or chemically decompose the sample and measure the resulting change in its mass. Alternatively, we can trap and weigh a volatile decomposition product. Because the release of a volatile species is an essential part of these methods, we classify them collectively as volatilization gravimetric methods of analysis.
- https://chem.libretexts.org/Courses/Lakehead_University/Analytical_I/3%3A_The_Vocabulary_of_Analytical_Chemistry/3.3%3A_Classifying_Analytical_TechniquesAnalyzing a sample generates a chemical or physical signal that is proportional to the amount of analyte in the sample. This signal may be anything we can measure, such as mass or absorbance. It is co...Analyzing a sample generates a chemical or physical signal that is proportional to the amount of analyte in the sample. This signal may be anything we can measure, such as mass or absorbance. It is convenient to divide analytical techniques into two general classes depending on whether the signal is proportional to the mass or moles of analyte, or to the analyte’s concentration.
- https://chem.libretexts.org/Courses/Lakehead_University/Analytical_I/7%3A_Gravimetric_Methods/7.1%3A_Overview_of_Gravimetric_MethodsBefore we consider specific gravimetric methods, let’s take a moment to develop a broad survey of gravimetry. Later, as you read through the descriptions of specific gravimetric methods, this survey w...Before we consider specific gravimetric methods, let’s take a moment to develop a broad survey of gravimetry. Later, as you read through the descriptions of specific gravimetric methods, this survey will help you focus on their similarities instead of their differences. You will find that it is easier to understand a new analytical method when you can see its relationship to other similar methods.
- https://chem.libretexts.org/Bookshelves/Analytical_Chemistry/Analytical_Chemistry_2.1_(Harvey)/08%3A_Gravimetric_Methods/8.03%3A_Volatilization_GravimetryVolatilization gravimetric methods involve decomposing a sample thermally or chemically and measuring the resultant change in mass. This approach is essential where a volatile species is released. The...Volatilization gravimetric methods involve decomposing a sample thermally or chemically and measuring the resultant change in mass. This approach is essential where a volatile species is released. Thermogravimetry is used to monitor sample mass changes with temperature, aiding in identifying decomposition reactions. Equipment ranges from simple crucibles to complex setups for trapping volatile products.
- https://chem.libretexts.org/Bookshelves/Analytical_Chemistry/Analytical_Chemistry_2.1_(Harvey)/03%3A__The_Vocabulary_of_Analytical_Chemistry/3.03%3A_Classifying_Analytical_TechniquesThe page discusses analytical techniques used to measure the amount of analyte in a sample, dividing them into two classes: total analysis techniques, which respond to the absolute amount of analyte, ...The page discusses analytical techniques used to measure the amount of analyte in a sample, dividing them into two classes: total analysis techniques, which respond to the absolute amount of analyte, such as gravimetry and titrimetry, and concentration techniques, which respond to analyte concentration, like spectroscopy and electrochemistry.
- https://chem.libretexts.org/Courses/Los_Angeles_Trade_Technical_College/Analytical_Chemistry/2%3A_Analytical_Chemistry_2.0_(Harvey)/09%3A_Gravimetric_MethodsGravimetry includes all analytical methods in which the analytical signal is a measurement of mass or a change in mass. When you step on a scale after exercising you are making, in a sense, a gravimet...Gravimetry includes all analytical methods in which the analytical signal is a measurement of mass or a change in mass. When you step on a scale after exercising you are making, in a sense, a gravimetric determination of your mass. Mass is the most fundamental of all analytical measurements, and gravimetry is unquestionably our oldest quantitative analytical technique.
- https://chem.libretexts.org/Courses/Los_Angeles_Trade_Technical_College/Analytical_Chemistry/2%3A_Analytical_Chemistry_2.0_(Harvey)/09%3A_Gravimetric_Methods/9.2%3A_Precipitation_GravimetryIn precipitation gravimetry an insoluble compound forms when we add a precipitating reagent, or precipitant, to a solution containing our analyte. In most methods the precipitate is the product of a s...In precipitation gravimetry an insoluble compound forms when we add a precipitating reagent, or precipitant, to a solution containing our analyte. In most methods the precipitate is the product of a simple metathesis reaction between the analyte and the precipitant; however, any reaction generating a precipitate can potentially serve as a gravimetric method.
- https://chem.libretexts.org/Bookshelves/Analytical_Chemistry/Analytical_Chemistry_2.1_(Harvey)/08%3A_Gravimetric_Methods/8.06%3A_Additional_ResourcesThis page provides a list of references introducing students to the applications of gravimetry through various experiments and historical resources. It includes experiments such as the dehydrochlorina...This page provides a list of references introducing students to the applications of gravimetry through various experiments and historical resources. It includes experiments such as the dehydrochlorination of PVC and gravimetric analysis techniques for nickel, calcium, phosphates, and crude fat. Additionally, it offers resources on the history and methodologies of gravimetry, and a review article on isotope dilution mass spectrometry.
- https://chem.libretexts.org/Courses/Los_Angeles_Trade_Technical_College/Analytical_Chemistry/2%3A_Analytical_Chemistry_2.0_(Harvey)/09%3A_Gravimetric_Methods/9.4%3A_Particulate_GravimetryPrecipitation and volatilization gravimetric methods require that the analyte, or some other species in the sample, participate in a chemical reaction. In a direct precipitation gravimetric analysis, ...Precipitation and volatilization gravimetric methods require that the analyte, or some other species in the sample, participate in a chemical reaction. In a direct precipitation gravimetric analysis, for example, we convert a soluble analyte into an insoluble form that precipitates from solution. In some situations, however, the analyte is already present as in a particulate form that is easy to separate from its liquid, gas, or solid matrix.
- https://chem.libretexts.org/Courses/Los_Angeles_Trade_Technical_College/Analytical_Chemistry/2%3A_Analytical_Chemistry_2.0_(Harvey)/09%3A_Gravimetric_Methods/9.1%3A_Overview_of_Gravimetric_MethodsBefore we consider specific gravimetric methods, let’s take a moment to develop a broad survey of gravimetry. Later, as you read through the descriptions of specific gravimetric methods, this survey w...Before we consider specific gravimetric methods, let’s take a moment to develop a broad survey of gravimetry. Later, as you read through the descriptions of specific gravimetric methods, this survey will help you focus on their similarities instead of their differences. You will find that it is easier to understand a new analytical method when you can see its relationship to other similar methods.
