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ChemicalConvert[cheminst,targetunit]

将指定实例 cheminst 中的量转换为 targetunit.

ChemicalConvert[cheminst]

转换为 SI 基本单位.

更多信息
Details and Options Details and Options
范例  
基本范例  
范围  
推广和延伸  
应用  
可能存在的问题  
参见
相关指南
历史
按以下格式引用：

ChemicalConvert

ChemicalConvert[cheminst,targetunit]

将指定实例 cheminst 中的量转换为 targetunit.

ChemicalConvert[cheminst]

转换为 SI 基本单位.

更多信息

范例

打开所有单元 关闭所有单元

基本范例  (4)

计算 2300 毫克钠中的毫摩尔数：

Wolfram Language code: ChemicalConvert[ChemicalInstance[Entity["Element", "Sodium"], Quantity[2300, "Milligrams"]], "Millimoles"]

计算 10 mL 水中的分子数：

Wolfram Language code: ChemicalConvert[ChemicalInstance[Entity["Chemical", "Water"], Quantity[10, "Milliliters"]], "Molecules"]

计算 10 摩尔氦的体积，以立方英尺为单位：

Wolfram Language code: ChemicalConvert[ChemicalInstance[Entity["Element", "Helium"], Quantity[10, "Moles"]], "Feet"^3]

用 SI 单位表示 10 盎司尿素的质量：

Wolfram Language code: ChemicalConvert[ChemicalInstance[Entity["Chemical", "Urea"], Quantity[10, "Ounces"]], "SIBase"]

等效规范：

Wolfram Language code: ChemicalConvert[ChemicalInstance[Entity["Chemical", "Urea"], Quantity[10, "Ounces"]]]

范围  (5)

计算非标准温度和压力下 10 mL 水的当量：

Wolfram Language code: ChemicalConvert[ChemicalInstance[Entity["Chemical", "Water"], <|"Volume" -> Quantity[10, "Milliliters"], "Temperature" -> Quantity[450, "Kelvins"], "Pressure" -> Quantity[2, "Bars"]|>] , Entity["PhysicalQuantity", "Amount"]]

计算 5 摩尔汞的体积：

Wolfram Language code: ChemicalConvert[ChemicalInstance[Entity["Element", "Mercury"], <|"Amount" -> Quantity[5, "Moles"]|>], Volume]

计算一万亿个咖啡因分子的质量：

Wolfram Language code: ChemicalConvert[ChemicalInstance[Entity["Chemical", "Caffeine"], Quantity[1000000000000, "Molecules"]], Quantity[1, "Grams"]]

计算 0.6 摩尔药物阿莫西林的质量，以 Molecule 表示：

Wolfram Language code: ChemicalConvert[ChemicalInstance[Molecule[{"S", "O", "O", "O", "O", "O", "N", "N", "N", "C", "C", "C", "C", "C", "C", "C", "C", "C", "C", "C", "C", "C", "C", "C", "C", "H", "H", "H", "H", "H", "H", "H", "H", "H", "H", "H", "H", "H", "H", "H", "H", "H", "H", "H"}, {Bond[{15, ... irection" -> "Clockwise"], Association["StereoType" -> "Tetrahedral", "ChiralCenter" -> 13, "Direction" -> "Counterclockwise"], Association["StereoType" -> "Tetrahedral", "ChiralCenter" -> 19, "Direction" -> "Counterclockwise"]}}], Quantity[0.6, "Moles"]], "Grams"]

计算 5 克“牛肉肽”的毫摩尔量，用 BioSequence 表示：

Wolfram Language code: ChemicalConvert[ChemicalInstance[BioSequence["Peptide", "KGDEESLA", {}], Quantity[5, "Grams"]], "Millimoles"]

推广和延伸  (2)

当密度未知时，象征性地计算体积：

Wolfram Language code: ChemicalConvert[ChemicalInstance[ChemicalFormula[{"U" -> 1, "O" -> 2, {"H" -> 2, "O" -> 1} -> 5}, Association["NetCharge" -> 2]], <|"Mass" -> Quantity[2, "Milligrams"], "MassDensity" -> Quantity[, "Grams" / "Milliliters"]|>], "Liters"]

符号式计算物质的量：

Wolfram Language code: ChemicalConvert[ChemicalInstance[BioSequence["DNA", "ATAAACGTACGTTTTTAGGCT", {}], <|"Mass" -> Quantity[25, "Micrograms"], "MolarMass" -> Quantity[, "Grams" / "Moles"]|>], "Moles"]

应用  (1)

当 5 克氢氧化钙与过量的磷酸反应生成 和水时，可以生成多少摩尔的二磷酸三钙，？ 首先配平化学反应方程式：

Wolfram Language code: rxn = ReactionBalance[ChemicalReaction[{Entity["Chemical", "CalciumHydroxide"], Entity["Chemical", "PhosphoricAcid"]} -> {Entity["Chemical", "CalciumPhosphate"], Entity["Chemical", "Water"]}]]

计算

与
的化学计量比：

Wolfram Language code: ratio = rxn["ProductCounts"][Entity["Chemical", "CalciumPhosphate"]] / rxn["ReactantCounts"][Entity["Chemical", "CalciumHydroxide"]]

将 5 g 的

转换为摩尔，然后乘以化学计量比，得到生成的
的摩尔数：

Wolfram Language code: ChemicalConvert[ChemicalInstance[Entity["Chemical", "CalciumHydroxide"], Quantity[5, "Grams"]], "Moles"] * ratio

可能存在的问题  (3)

如果无法确定化学实体的摩尔质量，则 ChemicalConvert 不求值：

Wolfram Language code: ChemicalConvert[ChemicalInstance[Entity["Chemical", "Polypropylene"], Quantity[2, "Moles"]], "Grams"]

如果化学物质的属性在非标准温度和压力下不可用，则 ChemicalConvert 保持不求值：

Wolfram Language code: ChemicalConvert[ChemicalInstance[Entity["Chemical", "1Butanol"], <|"Volume" -> Quantity[1, "Liters"], "Temperature" -> Quantity[400, "Kelvins"]|>], "Moles"]

多个物理量键会导致意想不到的结果. 这里，"Mass" 键的优先级高于 "Volume"，所以它被用于转换，结果替换了初始体积：

Wolfram Language code: ChemicalConvert[ChemicalInstance[Entity["Chemical", "Methane"], <|"Phase" -> "Gas", "Volume" -> Quantity[5, "Liters"], "Mass" -> Quantity[5, "Grams"]|>], "Liters"]
Wolfram Research (2022)，ChemicalConvert，Wolfram 语言函数，https://reference.wolfram.com/language/ref/ChemicalConvert.html.

文本

Wolfram Research (2022)，ChemicalConvert，Wolfram 语言函数，https://reference.wolfram.com/language/ref/ChemicalConvert.html.

CMS

Wolfram 语言. 2022. "ChemicalConvert." Wolfram 语言与系统参考资料中心. Wolfram Research. https://reference.wolfram.com/language/ref/ChemicalConvert.html.

APA

Wolfram 语言. (2022). ChemicalConvert. Wolfram 语言与系统参考资料中心. 追溯自 https://reference.wolfram.com/language/ref/ChemicalConvert.html 年

BibTeX

@misc{reference.wolfram_2026_chemicalconvert, author="Wolfram Research", title="{ChemicalConvert}", year="2022", howpublished="\url{https://reference.wolfram.com/language/ref/ChemicalConvert.html}", note=[Accessed: 14-September-2026]}

BibLaTeX

@online{reference.wolfram_2026_chemicalconvert, organization={Wolfram Research}, title={ChemicalConvert}, year={2022}, url={https://reference.wolfram.com/language/ref/ChemicalConvert.html}, note=[Accessed: 14-September-2026]}