how many substances

USAGE SUMMARY

The phrase "how many substances" is correct and usable in written English.
You can use it when inquiring about the quantity of different materials or chemical compounds in a specific context. Example: "In this experiment, how many substances are we analyzing for their chemical properties?"

✓ Grammatically correct

Science

News & Media

Academia

Human-verified examples from authoritative sources

Exact Expressions

5 human-written examples

This exercise indicates how many substances would be identified as P, on the basis of the above evaluation parameters.

Environmental Sciences Europe

In Figure 1, it is also indicated by a dashed line how many substances fail the criterion for vP, P, vB or B by not more than 10%, e.g. 5 of the 104 substances which are ¬P fail the P criterion by less than 10%, but all substances which are P fail the vP criterion by more than 10%.

Environmental Sciences Europe

"This specific corner of sesh culture is equal parts nihilism, banter, and bravado: It's showing how hard you are via how fucked up you can get, how many substances you can get away with taking, and in which settings".

Vice

The time required for completing a single lane depends on how many substances that the lane should be sequentially exposed to, and the duration of these exposures.

BMC Biotechnology

From this, we deduced the following three indicators to assess the quality of prescribing: Prescribing according to ATC Prescribing according to guidelines Cost-effective prescribing Prescribing according to ATC Within the DU90% segments of all seven groups of drugs, it was determined how many substances (fifth ATC level) accounted for the DU90% segment.

European Journal of Clinical Pharmacology

Human-verified similar examples from authoritative sources

Similar Expressions

55 human-written examples

A new generation of therapeutic approaches turns these traditional concepts on their head and is changing how many substance abuse counselors work with clients.

University of Chicago

Mrs Wallstrom sought to demonstrate the need for stricter restrictions on chemicals by taking a blood test to show how many noxious substances had infiltrated her system.

The Economist

Knome's researchers probably won't be able to figure out exactly why, despite exposing himself to who knows how many unhealthy substances over the years, Osbourne is still alive.

Duke University

Eyes are the window to your soul, and that doesn't stop being true no matter how many illegal substances you consume on a night out.

Vice

Eyes are the window to your soul, and that doesn't stop being true no matter how many illegal substances you consume on a night out.

Vice

Eyes are the window to your soul – that doesn't stop being true no matter how many illegal substances you consume on a night out.

Vice

Expert writing Tips

Best practice

When using "how many substances", ensure the context clearly defines what constitutes a "substance". Be specific about the type or classification of substances you are referring to.

Common error

Avoid using "how many substances" in contexts where the term "substance" is ambiguous. Clarify whether you're referring to chemical compounds, materials, or other specific categories to prevent misunderstanding.

Linguistic Context

The phrase "how many substances" functions as an interrogative phrase. It is used to inquire about the quantity or count of different materials or compounds. Ludwig AI confirms its proper usage, suggesting it is grammatically correct.

Expression frequency: Uncommon

Frequent in

Science

60%

News & Media

20%

Academia

20%

Less common in

Ludwig's WRAP-UP

In summary, the phrase "how many substances" is a grammatically correct interrogative phrase used to inquire about the quantity of materials or compounds. As Ludwig AI confirms, it's a valid and useful expression. While relatively uncommon, it finds frequent use in scientific and news-related contexts, with a neutral to formal register. When using this phrase, be sure to clearly define what you mean by "substance" to avoid ambiguity. Alternatives include "number of substances" or "quantity of substances". Paying attention to these guidelines will help ensure clarity and precision in your writing.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

number of substances

Replaces "how many" with "number of", focusing on a specific count.

quantity of substances

Emphasizes the amount of materials present.

amount of substances

Focuses on the total quantity, rather than individual counts.

count of substances

Highlights the act of counting specific materials.

what number of substances

An alternative way to phrase a question regarding quantity.

the substances' numerical value

Shifts the focus to the numerical representation of the substances.

total substances

A more concise way to refer to the substances.

several substances

Implies more than two but not a large number.

various substances

Highlights the variety or diversity of the materials.

a multitude of substances

Emphasizes a large quantity of the materials.

FAQs

How can I use "how many substances" in a sentence?

Use "how many substances" when inquiring about the quantity of different materials or chemical compounds in a specific context. For example, "In this experiment, "how many substances" are we analyzing for their chemical properties?"

What phrases are similar to "how many substances"?

Alternatives include "number of substances", "quantity of substances", or "amount of substances", depending on the emphasis you want to convey.

Is it better to use "how much substance" instead of "how many substances"?

"How much substance" typically refers to the degree of importance or significance something holds (i.e. this idea has no substance), while "how many substances" refers to the number of materials or compounds. The correct phrase depends on the intended meaning.

In scientific writing, is "how many substances" considered formal enough?

Yes, "how many substances" is suitable for scientific writing, but ensure clarity by specifying the type or classification of substances you're referring to. For added formality, consider "number of substances".