Search results
Results from the WOW.Com Content Network
Learn about the history and status of the metric system in the U.S., which is the preferred system of weights and measures for trade and commerce since 1975. Find out how U.S. customary units are defined in terms of metric units and how some industries and fields use the SI system extensively.
The International System of Units (SI) is the modern form of the metric system and the world's most widely used system of measurement. It consists of seven base units, 22 derived units with special names and symbols, and 24 prefixes for decimal multiples and submultiples.
The metric system is a decimal-based system of measurement that uses seven base units and metric prefixes. It evolved from the French Revolution and is now the official system of weights and measures in most countries.
Learn how to convert units of measurement using the factor–label method, a technique that cancels out dimensional units with fractions. Find out the limitations and applications of this method for different types of units and equations.
Stoichiometry is the relationship between the weights of reactants and products in chemical reactions. Learn how to calculate stoichiometric ratios, molar masses, and conversions using balanced equations, and see examples of gas, composition, and reaction stoichiometry.
Learn about the different types of metric units, including the International System of Units (SI), the CGS system, and other systems based on the metre, gram or second. Find the definitions, symbols, and conversions of various metric units for length, mass, time, and more.
Molar concentration is a measure of the amount of solute per unit volume of solution, usually expressed in moles per liter. Learn the definition, units, properties, and examples of molar concentration and related quantities such as molality and formality.
The kelvin is the SI unit of thermodynamic temperature, defined by taking the fixed numerical value of the Boltzmann constant k to be 1.380 649 × 10−23 when expressed in the unit J K−1. The kelvin is part of the set of seven SI base units that define the International System of Units.