化学
Chemistry is the study of matter, from individual atoms and ions to large biomolecules. With Wolfram|Alpha, you can explore data about chemical compounds, the reactions they undergo, solubility and chemical graph theory. It also has information about chemical quantities, unit conversion, molarity calculations and stoichiometry. Use Wolfram|Alpha to answer your chemistry questions, whether they are for homework or general curiosity.
Use Wolfram|Alpha to explore the elements of the periodic table.
Find the number of elements:
得到关于某个化学元素的信息
Find elements meeting given criteria:
Plot a property for a class of elements:
Learn about positively and negatively charged ions and their properties.
得到关于某个离子的信息
对几个离子进行比较
Compare ions of a given element:
Find a particular property value for a class of ions:
Use Wolfram|Alpha to balance chemical equations, determine reaction stoichiometry and predict products.
配平某个化学方程式
Calculate reaction stoichiometry:
Find chemical reactions using reactants or products:
Use Wolfram|Alpha to explore cheminformatics properties from graph invariants like Balaban's J index or the Hosoya index to QSAR descriptors like the hydrogen donor count or the longest chain.
Find the largest common substructure between two molecules:
Find aromatic atoms:
Find hydrogen bond donors and acceptors:
Compute a set of topological indices for a molecule:
Investigate nuclear chemistry with Wolfram|Alpha.
Write the nuclide symbol:
Find the neutron number:
Calculate binding energies:
Investigate the source of elements:
Search for chemicals by name, chemical formula or other identifier.
得到关于某个化合物的信息
Specify a compound by chemical identifier:
Compare different organic chemicals:
See examples of lipids, including glycerophospholipids, fatty acids and more:
Compute extensive properties for chemicals, which depend on the amount of substance present, and convert quantities between different units.
Enter quantities by mass:
Find the number of moles from a given mass:
Convert quantities to volumes:
Compute thermodynamic properties such as entropy, heat capacity or vapor pressure for a wide variety of chemicals.
找到某个物质在某给定状态下的属性
计算某个特定温度下的属性
Do computations with the Arrhenius equation:
Estimate thermodynamic properties using the Joback method:
Connect chemical properties with the underlying quantum mechanical nature of atoms and molecules.
Assemble the electronic configuration:
Assemble the ground-state orbital diagram:
Look up the atomic radius:
Count the number of valence electrons:
更进一步
Step-by-Step Solutions for ChemistryStep-by-Step Solutions for Chemical Solutions相关示例
相关 WOLFRAM 资源
Explore properties of different solutions, which depend on the solvent, solute and concentration.
计算某化学溶液的属性
计算某一定量的某个溶液的属性
Do titration computations:
Do dilution computations:
Explore functional groups such as cyanates, peroxides, alkanes and halides.
得到关于某个官能基的信息
得到关于某个保护基的信息
Find protecting group behavior under specified conditions:
Explore properties of electronic orbitals and the bonds they form. Find bonds by their constituent atoms, by their bond type or by the parent chemical.