mass fractions

USAGE SUMMARY

The phrase "mass fractions" is correct and usable in written English.
It is typically used in scientific and engineering contexts to refer to the ratio of the mass of a component to the total mass of a mixture or solution. Example: "In the analysis of the chemical composition, we calculated the mass fractions of each element present in the sample."

✓ Grammatically correct

Science

Human-verified examples from authoritative sources

Exact Expressions

60 human-written examples

Individual Cladocera also had lower mass fractions of DHA than co-occurring Copepoda in our sites (Supplementary Table 1).

Nature

However, the OH and the NO mass fractions are overestimated.

Combustion and Flame

Desiccant mass fractions should be as low as possible, but in order to achieve low vapour pressures required desiccant mass fractions may surpass the solubility limit.

Energy Procedia

Biomass moisture, N, P, K, and ash mass fractions were also measured.

Biomass and Bioenergy

Significant seasonal variation in both PM10 and PM2.5 mass fractions were observed.

Atmospheric Environment

The particle size distribution led to different gradients at the different mass fractions.

Materials Science and Engineering: A

We adapted the existing approach for non-dilute mixtures using mass fractions instead of molar concentrations.

Comptes Rendus Mécanique

The mixtures have been prepared from pure C10H22, C12H26, IBB and THN for 50% mass fractions.

Experimental Thermal and Fluid Science

The tool allows for the determination of the resulting whole system temperature, and mass fractions distribution.

International Journal of Hydrogen Energy

Finally, the limit oxygen mass fractions for the use of each simplification have been obtained.

Energy Conversion and Management

Alumina water nanofluids of four different mass fractions were prepared by ultrasonic dispersion technology.

International Journal of Heat and Mass Transfer

Expert writing Tips

Best practice

When writing scientific reports, specify "mass fractions" clearly to avoid ambiguity with volume or molar fractions. Always provide units if applicable.

Common error

Avoid using "mass fractions" when you actually mean volume fractions or molar fractions. Ensure your calculations and the context clearly indicate that you're referring to mass, not volume or moles.

Linguistic Context

The phrase "mass fractions" functions as a noun phrase, typically used as a subject or object in a sentence. As Ludwig AI indicates, it is grammatically correct and commonly found in scientific literature. It refers to the ratio of the mass of a component to the total mass of a mixture.

Expression frequency: Very common

Frequent in

Science

100%

Less common in

News & Media

0%

Formal & Business

0%

Ludwig's WRAP-UP

In summary, the phrase "mass fractions" is a grammatically sound and frequently used term in scientific and technical domains. As Ludwig AI confirms, it effectively conveys the proportional mass composition of a substance. While alternatives like "weight fractions" exist, "mass fractions" is generally preferred for its precision. When employing this term, ensure clarity and avoid confusion with other types of fractions. The phrase consistently appears within the scientific register across various academic sources.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

weight fractions

This alternative uses "weight" instead of "mass", often used interchangeably in contexts where gravity is constant.

mass ratios

This term focuses on the ratio between the masses of different components.

composition by mass

This describes the constitution of a substance specifically in terms of mass.

proportions by mass

This alternative highlights the proportional relationship of components by their mass.

mass percentages

This indicates the proportion of a substance expressed as a percentage of the total mass.

gravimetric fractions

This term uses "gravimetric", relating to measurement by weight, which is proportional to mass.

mass composition

This phrase emphasizes the overall mass-based makeup of a substance.

relative mass

This emphasizes the mass of a component in relation to a reference mass or the total mass.

fractional mass

This highlights that the mass is expressed as a fraction.

constitution by weight

Similar to composition by mass, but uses weight instead of mass.

FAQs

How do you calculate "mass fractions"?

To calculate "mass fractions", divide the mass of the component by the total mass of the mixture. The result can be expressed as a decimal, percentage, or parts per million/billion.

What is the difference between "mass fractions" and molar fractions?

"Mass fractions" are based on the mass of each component in a mixture, while molar fractions are based on the number of moles of each component. The choice between them depends on the specific application and the properties being analyzed.

When should I use "weight fractions" instead of "mass fractions"?

While "weight fractions" and "mass fractions" are often used interchangeably, "mass fractions" is more precise in scientific contexts. Use "weight fractions" when the gravitational force is assumed to be constant across the system.

How are "mass fractions" used in chemical analysis?

"Mass fractions" are used to quantify the composition of a sample, indicating the proportion of each element or compound present. This is essential for quality control, research, and regulatory compliance.