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The thomson (symbol: Th) is a unit that has appeared infrequently in scientific literature relating to the field of mass spectrometry as a unit of mass-to-charge ratio.The unit was proposed by R. Graham Cooks and Alan L. Rockwood [1] naming it in honour of J. J. Thomson who measured the mass-to-charge ratio of electrons and ions.
The College Board's recommended preparation was a one-year college preparatory course in chemistry, a one-year course in algebra, and experience in the laboratory. However, some second-year algebra concepts (including logarithms) were tested on this subject test. Given the timed nature of the test, one of the keys of the mathematics that ...
The 2014 AP Chemistry exam was the first administration of a redesigned test as a result of a redesigning of the AP Chemistry course. The exam format is now different from the previous years, with 60 multiple choice questions (now with only four answer choices per question), 3 long free response questions, and 4 short free response questions.
The test is offered by the College Board. Approximately 2,900 colleges and universities will grant college credits for each test. Both U.S. and international schools grant CLEP credit. Most of the tests are 90 minutes long. As of 2023, they cost $90 each; they will cost $93 in the 2023–2024 school year. [2]
The College Board's Advanced Placement Program is an extensive program that offers high school students the chance to participate in what the College Board describes as college-level classes, reportedly broadening students' intellectual horizons and preparing them for college work. It also plays a large part in the college admissions process ...
In February 2024, College Board announced that there would be changes in curricula for their AP Physics classes for the 2025 exams. For AP Physics 1, this added fluids to the list of topics covered on the exam, now the last unit of the curriculum. Previously, this topic was covered as the first unit of AP Physics 2. In the revised curriculum ...
AP Physics C: Mechanics and AP Physics 1 are both introductory college-level courses in mechanics, with the former recognized by more universities. [1] The AP Physics C: Mechanics exam includes a combination of conceptual questions, algebra-based questions, and calculus-based questions, while the AP Physics 1 exam includes only conceptual and algebra-based questions.
The SI unit of molar absorption coefficient is the square metre per mole (m 2 /mol), but in practice, quantities are usually expressed in terms of M −1 ⋅cm −1 or L⋅mol −1 ⋅cm −1 (the latter two units are both equal to 0.1 m 2 /mol). In older literature, the cm 2 /mol is sometimes used; 1 M −1 ⋅cm −1 equals 1000 cm 2 /mol.
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