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- https://chem.libretexts.org/Courses/Hope_College/CHEM_125/Exam_I/01%3A_Introduction_-_The_Ambit_of_Chemistry/1.06%3A_Measurements%2C_Quantities%2C_and_Unity_FactorsLet us assume that you are faced with a specific problem. Then we can see how scientific thinking might help solve it. Suppose that you live near a large plant which manufactures cement. Smoke from th...Let us assume that you are faced with a specific problem. Then we can see how scientific thinking might help solve it. Suppose that you live near a large plant which manufactures cement. Smoke from the plant settles on your car and house, causing small pits in the paint. You would like to stop this air-pollution problem—but how?
- https://chem.libretexts.org/Courses/University_of_North_Texas/UNT%3A_CHEM_1410_-_General_Chemistry_for_Science_Majors_I/Text/01%3A_Introduction_-_The_Ambit_of_Chemistry/1.06%3A_Measurements%2C_Quantities%2C_and_Unity_FactorsLet us assume that you are faced with a specific problem. Then we can see how scientific thinking might help solve it. Suppose that you live near a large plant which manufactures cement. Smoke from th...Let us assume that you are faced with a specific problem. Then we can see how scientific thinking might help solve it. Suppose that you live near a large plant which manufactures cement. Smoke from the plant settles on your car and house, causing small pits in the paint. You would like to stop this air-pollution problem—but how?
- https://chem.libretexts.org/Bookshelves/General_Chemistry/ChemPRIME_(Moore_et_al.)/01%3A_Introduction_-_The_Ambit_of_Chemistry/1.06%3A_Measurements_Quantities_and_Unity_FactorsLet us assume that you are faced with a specific problem. Then we can see how scientific thinking might help solve it. Suppose that you live near a large plant which manufactures cement. Smoke from th...Let us assume that you are faced with a specific problem. Then we can see how scientific thinking might help solve it. Suppose that you live near a large plant which manufactures cement. Smoke from the plant settles on your car and house, causing small pits in the paint. You would like to stop this air-pollution problem—but how?
- https://chem.libretexts.org/Bookshelves/Analytical_Chemistry/Analytical_Chemistry_2.1_(Harvey)/05%3A_Standardizing_Analytical_Methods/5.02%3A_Calibrating_the_SignalThe accuracy in determining kA and Sreag relies on precise signal measurement, using calibrated equipment like balances and spectrophotometers. Calibrating involves adjusting the measured signal, Stot...The accuracy in determining kA and Sreag relies on precise signal measurement, using calibrated equipment like balances and spectrophotometers. Calibrating involves adjusting the measured signal, Stotal, to match a known standard signal, Sstd. For example, balances are calibrated using reference weights, while spectrophotometers are checked by measuring absorbance of specific solutions.
- https://chem.libretexts.org/Bookshelves/Introductory_Chemistry/Introductory_Chemistry_(CK-12)/03%3A_Measurements/3.05%3A_Mass_and_WeightThis page explores weightlessness in outer space and its effects on astronauts' bone health. It clarifies the difference between mass, a constant measure of matter, and weight, which is influenced by ...This page explores weightlessness in outer space and its effects on astronauts' bone health. It clarifies the difference between mass, a constant measure of matter, and weight, which is influenced by gravity. The text also mentions that weight is less on the moon than on Earth, while mass stays the same regardless of location. Additionally, it gives a brief explanation of how to measure mass and weight.
- https://chem.libretexts.org/Bookshelves/Introductory_Chemistry/Book%3A_Introductory_Chemistry_Online_(Young)/11%3A_Nuclear_Chemistry/11.2%3A_The_Nuclear_EquationTo show radioactive decay in a chemical equation, you need to use atomic symbols. In the atomic symbol, the atomic number (the number of protons in the nucleus) appears as a subscript preceding the sy...To show radioactive decay in a chemical equation, you need to use atomic symbols. In the atomic symbol, the atomic number (the number of protons in the nucleus) appears as a subscript preceding the symbol for the element. The mass number appears as a superscript, also preceding the symbol.
