phân tử lượng

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The Vietnamese word "phân tử lượng" translates to "molecular weight" in English. It is a term used in chemistry to describe the weight of a molecule. Molecular weight is calculated by adding together the atomic weights of all the atoms in a molecule. This measurement is important in understanding the properties of substances, especially when it comes to reactions and how substances interact with each other.

Usage Instructions:

• You would use "phân tử lượng" when discussing chemistry, particularly when talking about the characteristics of different substances.
• It's often used in scientific contexts, such as laboratory reports, textbooks, or when studying chemical reactions.

Example:

• In a sentence: "Phân tử lượng của nước (H₂O) là khoảng 18 g/mol." (The molecular weight of water (H₂O) is about 18 g/mol.)

Advanced Usage:

• In more advanced chemistry discussions, you might encounter phrases like "tính toán phân tử lượng" (calculating molecular weight) or "phân tử lượng trung bình" (average molecular weight), which refers to the average weight of a mixture of molecules.

Word Variants:

• There are no direct variants of "phân tử lượng," but you might come across related terms such as:
  • "phân tử" (molecule) - the basic unit of a chemical compound.
  • "tử lượng" (weight) - which refers to weight in general, not specifically molecular.

Different Meanings:

• The term "phân tử" on its own means "molecule," while "tử lượng" can refer to weight in various contexts. However, when combined as "phân tử lượng," it specifically refers to molecular weight.

Academic

1. (hóa học) Molecular weight