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- https://chem.libretexts.org/Courses/Widener_University/Widener_University%3A_Chem_135/01%3A_Essential_Ideas_of_Chemistry/1.02%3A_MeasurementsMeasurements provide quantitative information that is critical in studying and practicing chemistry. Each measurement has an amount, a unit for comparison, and an uncertainty. Measurements can be repr...Measurements provide quantitative information that is critical in studying and practicing chemistry. Each measurement has an amount, a unit for comparison, and an uncertainty. Measurements can be represented in either decimal or scientific notation. Scientists primarily use the SI (International System) or metric systems. We use base SI units such as meters, seconds, and kilograms, as well as derived units, such as liters (for volume) and g/cm3 (for density).
- https://chem.libretexts.org/Courses/Los_Angeles_Trade_Technical_College/Foundations_of_Introductory_Chemistry-1/1.03%3A_Measurements/2.5_Other_Units_-_Temperature_and_DensityChemistry uses the Celsius and Kelvin scales to express temperatures. A temperature on the Kelvin scale is the Celsius temperature plus 273.15. The minimum possible temperature is absolute zero and is...Chemistry uses the Celsius and Kelvin scales to express temperatures. A temperature on the Kelvin scale is the Celsius temperature plus 273.15. The minimum possible temperature is absolute zero and is assigned 0 K on the Kelvin scale. Density relates a substance’s mass and volume. Density can be used to calculate volume from a given mass or mass from a given volume.
- https://chem.libretexts.org/Courses/Lansing_Community_College/LCC%3A_Chem_151_-_General_Chemistry_I/Text/01%3A_Introduction_-_Matter_and_Measurement/1.3%3A_Properties_of_MatterAll matter has physical and chemical properties. Physical properties are characteristics that scientists can measure without changing the composition of the sample under study, such as mass, color, an...All matter has physical and chemical properties. Physical properties are characteristics that scientists can measure without changing the composition of the sample under study, such as mass, color, and volume (the amount of space occupied by a sample). Chemical properties describe the characteristic ability of a substance to react to form new substances; they include its flammability and susceptibility to corrosion.
- https://chem.libretexts.org/Courses/Los_Angeles_Trade_Technical_College/DMA_Chem_51_Su_19/2%3A_Beginning_Chemistry_(Ball)/02%3A_Measurements/2.6%3A_Other_Units_-_Temperature_and_DensityChemistry uses the Celsius and Kelvin scales to express temperatures. A temperature on the Kelvin scale is the Celsius temperature plus 273.15. The minimum possible temperature is absolute zero and is...Chemistry uses the Celsius and Kelvin scales to express temperatures. A temperature on the Kelvin scale is the Celsius temperature plus 273.15. The minimum possible temperature is absolute zero and is assigned 0 K on the Kelvin scale. Density relates a substance’s mass and volume. Density can be used to calculate volume from a given mass or mass from a given volume.
- https://chem.libretexts.org/Courses/City_College_of_San_Francisco/Chemistry_101A/Foundations/1%3A_Essential_Ideas_of_Chemistry/1.04%3A_MeasurementsMeasurements provide quantitative information that is critical in studying and practicing chemistry. Each measurement has an amount, a unit for comparison, and an uncertainty. Measurements can be repr...Measurements provide quantitative information that is critical in studying and practicing chemistry. Each measurement has an amount, a unit for comparison, and an uncertainty. Measurements can be represented in either decimal or scientific notation. Scientists primarily use the SI (International System) or metric systems. We use base SI units such as meters, seconds, and kilograms, as well as derived units, such as liters (for volume) and g/cm3 (for density).
- https://chem.libretexts.org/Bookshelves/General_Chemistry/Map%3A_Structure_and_Properties_(Tro)/02%3A_Matter_Measurement_and_Problem_Solving/2.03%3A_DensityDensity ( ρ ) is a physical property found by dividing the mass of an object by its volume. Regardless of the sample size, density is always constant. For example, the density of a pure sample of tung...Density ( ρ ) is a physical property found by dividing the mass of an object by its volume. Regardless of the sample size, density is always constant. For example, the density of a pure sample of tungsten is always 19.25 grams per cubic centimeter. This means that whether you have one gram or one kilogram of the sample, the density will never vary.
- https://chem.libretexts.org/Courses/Chabot_College/Introduction_to_General_Organic_and_Biochemistry/02%3A_Chemistry_and_Measurement/2.09%3A_DensityDensity is a physical property found by dividing the mass of an object by its volume. Regardless of the sample size, density is always constant.
- https://chem.libretexts.org/Courses/CSU_San_Bernardino/CHEM_2100%3A_General_Chemistry_I_(Mink)/01%3A_Essential_Ideas/1.05%3A_MeasurementsMeasurements provide quantitative information that is critical in studying and practicing chemistry. Each measurement has an amount, a unit for comparison, and an uncertainty. Measurements can be repr...Measurements provide quantitative information that is critical in studying and practicing chemistry. Each measurement has an amount, a unit for comparison, and an uncertainty. Measurements can be represented in either decimal or scientific notation. Scientists primarily use the SI (International System) or metric systems. We use base SI units such as meters, seconds, and kilograms, as well as derived units, such as liters (for volume) and g/cm3 (for density).
- https://chem.libretexts.org/Courses/Taft_College/CHEM_1510%3A_Introductory_College_Chemistry/02%3A_Measurement_and_Problem_Solving/2.09%3A_DensityDensity is a physical property found by dividing the mass of an object by its volume. Regardless of the sample size, density is always constant.
- https://chem.libretexts.org/Bookshelves/Analytical_Chemistry/Analytical_Chemistry_2.1_(Harvey)/16%3A_Appendix/16.09%3A_Correcting_Mass_for_the_Buoyancy_of_AirThe text discusses the determination and correction of buoyancy errors when calibrating balances and volumetric glassware. Buoyancy causes objects to weigh less in air than in a vacuum, requiring a co...The text discusses the determination and correction of buoyancy errors when calibrating balances and volumetric glassware. Buoyancy causes objects to weigh less in air than in a vacuum, requiring a correction depending on the density difference between the object and calibration weights. The correction is usually minor but significant for low-density materials. Example calculations demonstrate how ignoring buoyancy introduces errors, emphasizing its importance in precise calibration.
- https://chem.libretexts.org/Bookshelves/Physical_and_Theoretical_Chemistry_Textbook_Maps/Physical_Chemistry_(Fleming)/01%3A_The_Basics/1.01%3A_The_System_and_the_SurroundingsThe page discusses the Zeroth Law of Thermodynamics, emphasizing the importance of defining key terms like "system" and "surroundings." Various types of systems are identified, such as open, closed, a...The page discusses the Zeroth Law of Thermodynamics, emphasizing the importance of defining key terms like "system" and "surroundings." Various types of systems are identified, such as open, closed, and isolated systems, based on how they allow matter and energy transfer. The distinctions between homogeneous and heterogeneous systems are also outlined, along with the significance of intensive and extensive variables.
