Why did phenylphthaline not change the color of the aqueous solution when the soil alkalinity was studied in the laboratory?

01 January 1970 0 9K Report

Why did phenylphthaline not change the color of the aqueous solution when the soil alkalinity was studied in the laboratory.Is your opinion very important?

Badges
Science topic

Similar topics
Mathematics
Statistics

More Otamurod Imomov's questions See All

Dear researcher and scientist, I would like to do some research on soil genomics. Would you like to share a card?

Dear researcher and scientist, I would like to conduct research on soil genomics. I would like you to work with me. would you like to share information?

30 May 2022 2,477 1 View

Can you provide information on chemical ameliorants for use in saline soils?

03 April 2022 5,760 6 View

What is the opinion on the correlation of Na and SO4 in soil salinity?

29 March 2022 2,019 4 View

Soil salinity problems?

Need a method for reclamation of saline soils? Are there modern methods to prevent salinity? Soil changes?

28 March 2022 9,281 13 View

Which reagent can be recommended instead of disulfaphenol to determine the amount of nitrate in the soil?

01 January 1970 7,957 6 View

What can you recommend for growing plants in saline soils? On the dried bottom of the Aral Sea?

01 January 1970 3,036 4 View

How exactly can you recommend changing the concentration of which salts when increasing soil humus?

01 January 1970 7,509 3 View

Can you provide information on soil genomic analysis?

01 January 1970 217 0 View

Need information on soil genomics?

01 January 1970 6,342 1 View

Are there any methodological methods for the analysis and study of vitamins in soil solution?

01 January 1970 6,518 0 View

Is skin yellowness an numerical or ordinal variable?

I have a response variable called skin yellowness, which I will measure via a scored color chart, whereby 1 is pale yellow and 15 is orange. I'm not sure if this counts as an ordinal variable,...

11 August 2024 4,793 1 View

What is the reason for current dropping in OER , LSV curve?

I tried four trials of the same Copper Phosphides sample in Alkaline medium ( 0.5M KOH) with Hg/HgO reference electrode and Pt as counter electrode. I used 0.001 V/s scan rate for first three...

10 August 2024 3,629 1 View

What Are the Best Alternatives to the MTT Assay for Assessing Cell Toxicity of Colored Herbal Extracts?

I am currently investigating the cytotoxicity of a series of herbal extracts, and like many studies, I have been using the MTT assay to evaluate cell viability. However, I am encountering a...

31 July 2024 193 4 View

Why applying a saved template of a bar chart in a different/new one doesn't take effect in SPSS?

Using SPSS, I made my edits in one bar chart — e.g., font type and size, hiding grid lines, and colours, namely: blue, orange, green, purple, and grey for 5 bars, respectively, etc. — and I saved...

29 July 2024 1,981 1 View

How to estimate sample size for GWAS of continuous and discrete traits? What are the pre-requisites?

Genome-wide association study (GWAS) Continuous traits: eg. Height Discrete traits: eg. Eye color

28 July 2024 286 0 View

Can anyone help me explain my problem?

Hi, Now I am doing a single-base editing by using HiFi Cas 9, guideRNA, single stranded DNA, HDR Enhancer V2 and my tranfection mehtod is lipofection (RNAiMax). Unfortunately, after gene editing,...

26 July 2024 2,136 0 View

Aqua regia not heating up?

I used Aqua regia to clean Au nanoparticles in the used glassware. But for some reasons, it is not heating up upon mixing. The color did change from no color to light orange. The Au NPs on the...

25 July 2024 4,390 0 View

My question concerns MTT cell viability assay?

Despite not having cells in the media, I am getting purple color. I have tried many troubleshooting methods, varying media types, and even different MTTs from different companies to figure out the...

21 July 2024 9,914 1 View

Best statistical test for three groups and binary dependent variable ?

Hello everyone, I am currently working on a project where I aim to analyze color preferences in data visualizations across participants from three different countries. The dependent variable in...

19 July 2024 4,178 2 View

Can sulfuric acid be used to prepare anthrone reagent when it has oxidized and changed color in reaction to light?

Sulfuric acid has changed color to yellow.

16 July 2024 6,964 0 View