🧪 溶液浓度示意Concentration Calculator

使用说明与常见问题How-to & FAQ

「溶液浓度示意」是什么？What is the Concentration Calculator tool?

c = n/V（mol/L）或质量浓度 m/V。本地处理。可设置「模式」、「溶质（mol 或 g）」、「溶液体积 L」。c = n/V (mol/L) or mass concentration m/V. Processed locally. Settings: Mode, Solute (mol or g), Solution volume L.

如何使用「溶液浓度示意」？How do I use the Concentration Calculator tool?

在「溶液浓度示意」中，填写「模式」、「溶质（mol 或 g）」、「溶液体积 L」等参数，结果会随输入实时计算并显示在下方。In the Concentration Calculator: Fill in "Mode", "Solute (mol or g)", "Solution volume L"; results are recalculated instantly as you type.

能算质量分数吗？Can it calculate mass fraction?

不能，本页只算以溶液体积为基准的浓度：物质的量浓度 c = n ÷ V（mol/L）或质量浓度 m ÷ V（g/L）。质量分数 = 溶质质量 ÷ 溶液质量，需要知道溶液的质量或密度。No. It gives volume-based concentration only: molarity c = n ÷ V (mol/L) or mass concentration m ÷ V (g/L). Mass fraction = solute mass ÷ solution mass, which needs the solution's mass or density.

能举个计算实例吗？Can you show a worked example?

例如在「溶液浓度示意」中填 模式 = 物质的量浓度，溶质（mol 或 g） = 0.5，溶液体积 L = 2，结果区显示：浓度 mol/L：0.25For example, entering Mode = Molar, Solute (mol or g) = 0.5, Solution volume L = 2 in the Concentration Calculator gives: mol/L: 0.25

哪些输入会被检查？Which inputs are validated?

「溶液浓度示意」会检查这些输入——「溶质（mol 或 g）」：必须填写，须不小于 0且不大于 1,000,000,000；「溶液体积 L」：必须填写，须大于 0且不大于 1,000,000；绝对值超过 10¹⁵ 的数也会被拒绝。不符合时结果区显示具体提示，不会给出数字。The Concentration Calculator checks its inputs — "Solute (mol or g)": required, must be at least 0 and at most 1,000,000,000; "Solution volume L": required, must be more than 0 and at most 1,000,000; numbers above 10¹⁵ in absolute value are rejected too. When a value fails, the result area names the problem instead of showing a number.

有哪些选项可以调整？What options can I adjust?

「溶液浓度示意」的设置：「模式」可选 物质的量浓度、质量浓度（默认 物质的量浓度）；「溶质（mol 或 g）」默认 0.5；「溶液体积 L」默认 2。每次生成结果都按当前设置处理。Settings in the Concentration Calculator — "Mode": Molar, Mass (default Molar); "Solute (mol or g)" default 0.5; "Solution volume L" default 2. The result always uses the current settings.

计算结果可以用于作业或工程吗？Can I use the results for homework or engineering?

「溶液浓度示意」使用教科书标准公式（公式写在说明和常见问题中），适合学习和估算核对；涉及安全的工程设计请以规范和实测为准。The Concentration Calculator uses standard textbook formulas (given in the description and FAQ), which is good for learning and checking estimates; for safety-critical engineering follow codes and measured values.

「溶液浓度示意」免费吗？需要注册吗？Is the Concentration Calculator free? Do I need an account?

「溶液浓度示意」完全免费，无需注册或安装，打开网页即可使用，手机和电脑都能用；输入的内容只在你的浏览器本地处理。The Concentration Calculator is completely free with no sign-up or install and works on phones and desktops; what you enter is processed only in your browser.