How can the pH of a solid or dry material be determined?

More Ewansiha Joel's questions See All

What are the research gaps for telematic technologies for road pavements optimization?

what can be the undiscovered benefits of applying telematic technologies for road pavement maintenance, incident reduction and environmental protection?

29 June 2024 7,507 1 View

What are the likely variables of monetary policies and bank interest rate when conducting research with this terms?

The impact of monetary policy and bank rate on the performance of deposit money banks in Nigeria

31 May 2024 7,587 1 View

Why am i getting the human verification when i search for certain topic?

most of the time when i search fo certain topic i found the human verification respond and nothing change there after

19 March 2024 6,870 0 View

How to handle twins in birth order analysis?

Hello! I have a methodological question and I hope someone can help me. I collected data via an online survey with a sample size of 2600 (N = 2600). Initially, I aimed to examine the effect of...

26 February 2024 6,911 4 View

FfTK Calc Bonded Tab ORCA gbw file not recognized INQUIRY?

Hi RG Community I had input all the appropriate files, however, received an Action halted on error! My ORCA generated .gbw QM Output file was not recognized (please see screenshot attached). I...

15 February 2024 2,553 1 View

How long would it take a biofiltratration sysytem in fish culture to complete the nitrogen cycle?

Typically, it is said that biofilter by their nature allow the settling of bacteria beneficial to the treatment of fishwaste. Fish culture though is known for producing high amounts of ammonia in...

28 January 2024 2,398 3 View

Why do eastern European nations seem to have a significantly lower all-cause mortality rate than the UK, Canada, and the U.S.?

From what I can tell by searching the "Your World in Data" website, eastern Europe seems to have an expected lower than average all-cause mortality rate than the western first world nations, who...

04 January 2024 7,066 0 View

Topology Validation Inquiry within an .str File via CGenFF Inquiry?

Hello RG Community:), I have a ligand exhibiting penalties between 10-50 within a .str file generated via a CGenFF, the generated .prm file does not exactly match the ligand atoms nor the closest...

25 December 2023 4,364 1 View

Alphafold Monomer versus MODELLER Oligomer Loop Modeling Inquiry?

Hi I had modelled a heptamer transmembrane protein missing 10-residues within the extracellular loops via MODELLER constraining the known residues as a heptamer (when MODELLER modeled as a monomer...

08 December 2023 4,512 0 View

AlphaFold Multimer Loop Modeling Inquiry?

Hello towards the above topic, I successfully loop-modeled a transmembrane heptamer protein (426-residues per monomer) exhibiting 7-extracellular loops each missing 11-residues via MODELLER via...

03 December 2023 9,528 2 View

• What the possible Persistent Organic Pollutants and Heavy metals present in fluorspar, sediments, and water bodies around its mining area?

Approximate concentrations are require in compared with the WHO permissible limts

11 August 2024 2,723 1 View

Strugglling with m6A dot blot any suugesstion ?

I have been doing the m6A dot blot for a while with no improvement, I am extracting the RNA, and I can see the dots although the three biological replicas give a different reading on the memberan...

10 August 2024 8,539 5 View

Basis set and input instruction to calculate HOMO and LUMO using Orca for Imidazolium based organic salts?

Hey there, As a synthetic chemist delving into theoretical calculations for my imidazolium-based organic molecules, I would greatly appreciate any guidance on the appropriate input instructions...

09 August 2024 5,444 7 View

How can I use the cif data obtained from rietveld refinement extracted via gsas2, for microstructural analysis using ETEX software?

09 August 2024 7,718 0 View

What is the solvent for 8YSZ nano material?

I need to do some experiment with it in liquid form.

07 August 2024 613 3 View

Separation of organic acids-HPLC?

Hello What should be done to separate and identify organic acids in HPC when their RetTime is the same?Like oxalic acid with Propanoic Acid.or acids that have a very close RetTime.

07 August 2024 8,782 3 View

How do soil microflora interact with plant roots and influence plant nutrition, health, and productivity?

06 August 2024 9,618 3 View

The aqueous fraction of the hydroethanolic extract is showing the presence of palmitic acid. What is the mechanism responsible ?

Palmitic acid presence in aqueous fraction

05 August 2024 8,624 4 View

Which solvent is better to dissolve with secondary metabolites extracted from fungi?

I work on MCF7 cell cell for anticaner purpose and I wa to do drug preperation the drug ( secondary metabolites extracted from Aspergillus) My question which solvent is better with these secodary...

03 August 2024 4,725 2 View

How to convert g/kg Humic acid dose to kg/ha?

I used humic acid at 0.044 g/kg soil in my pot experiment. But finally, I have to recommend kg/ha. Each pot's soil weight was 11 kg. What is the solution?

02 August 2024 7,186 6 View

Ewansiha Joel

DMSO can dissolve it

Ooi Yan Jie

Hi what is the purpose of measuring pH of your plant extract ? Are you looking for organic acid or organic base present in your extract ?

pH measurement for solid usually done by dissolve / submerge solid samples into water, in a percentage of 10% - 50% (w/v) solid in water.

One of the standard method EPA 9045D was attached for your reference.

Hope this helps your research.