nồng độ
Definition
- Noun (Chemistry):
- Concentration: The measure of the amount of a particular substance (the solute) contained within a specific volume or mass of a mixture or solution. It is typically expressed as a ratio, such as mass per volume (e.g., g/L) or molarity (mol/L).
Usage Examples
- Noun:
- Nồng độ oxy trong máu của bệnh nhân đã trở lại bình thường. (The patient's blood oxygen concentration has returned to normal.)
- Hãy kiểm tra nồng độ muối trong nước. (Please check the salt concentration in the water.)
- Nồng độ cồn trong máu của tài xế vượt quá giới hạn cho phép. (The driver's blood alcohol concentration exceeded the legal limit.)
Advanced Usage
- "nồng độ phần trăm": percentage concentration.
- Nồng độ phần trăm của dung dịch này là 10%. (The percentage concentration of this solution is 10%.)
- "nồng độ mol": molar concentration (molarity).
- Chúng ta cần tính nồng độ mol của axit. (We need to calculate the molar concentration of the acid.)
Variants and Related Words
- Nồng nặc (adj): This is a different word meaning "pungent" or "strong-smelling," often used for odors. It is not a variant of nồng độ but is sometimes confused due to the shared root "nồng."
- Mùi khói nồng nặc khắp căn phòng. (The pungent smell of smoke filled the room.)
Synonyms
- Concentration: the primary and most accurate synonym in scientific contexts.
- Strength: can be used informally in some contexts (e.g., "the strength of the acid").
- Density: in very specific, non-chemical contexts (e.g., population density), but not a direct synonym for chemical solutions.
Related Terms and Phrases
- Pha loãng (v): to dilute (the process of reducing concentration).
- Pha loãng dung dịch bằng cách thêm nước. (Dilute the solution by adding water.)
- Bão hòa (adj): saturated (a state where no more solute can be dissolved, representing maximum concentration).
- Dung dịch này đã đạt đến trạng thái bão hòa. (This solution has reached a saturated state.)
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(hóa học) Concentration
