We are attempting to prepare solid NaOD by adding D2O to sodium metal. What is good way to determine the percent NaOD from reaction?

More Russ Dean Barrows's questions See All

Can you run Karl Fischer (KF) Titration without equipment?

I am looking to run KF titrations by hand. At the moment we cannot justify buying a whole machine for the amount of tests we'll be running, but I also need to test out the process in order to...

09 November 2022 6,809 1 View

What is the strength of this relationship?

I'm a newb who knows (almost) nothing about stats, statistical significance, or understanding the robustness of a relationship. I'm looking for feedback on the strength of this relationship from...

16 July 2022 7,391 13 View

Does someone know of research on the effect on the vestibular system using rocking chairs?

Very interested in the therapeutic benefits of the rocking motion, such as rocking chairs, rocking a baby, self induced rocking motion, and how the vestibular system or the proprioceptive system...

22 July 2021 5,675 4 View

ImageJ alternative for iPad Pro?

Hey people, I am currently working with an iPad Pro and I would like to count cells on it. I already know, that Java-based ImageJ doesn´t work on it. Do you know any alternate software for this...

09 February 2020 8,007 2 View

I'm looking for two older articles on the Hamilton Anxiety Rating Scale (Refs below). Does anyone have?

Hamilton, M. A. X. (1959). The assessment of anxiety states by rating. British journal of medical psychology, 32(1), 50-55. Hamilton, M. (1969). Diagnosis and rating of anxiety. Br J Psychiatry,...

09 February 2020 6,196 3 View

When it comes to polysaccharides, why are some types so much better for the GI track than others?

For patients with GI issues with the large intestine (IBS, spastic colon, ulcerative colitis), I have seen a pattern that foods with carageenan and xanathan gum, both polysaccharides used as...

04 February 2020 9,553 3 View

What are the compounds in coffee, other than caffeine, might be responsible for slowing/stopping headaches?

I've found an interesting theme in experiments with my very own headaches. When I take coffee at the onset of the headache, the headache stops immediately in its track. However, if I take a pure...

11 December 2019 6,463 3 View

Can bacterial biofilms be seen by medical pathologist doctors when observing slides of biopsies?

Can biofilms be seen by pathologists when they do lab studies? For example, if a human has a biofilm in their colon and does a colonoscopy with biopsies sent to the pathologist, could the doctor...

09 December 2019 2,283 4 View

How to analyse heat maps for sports GPS data?

I'm have seen some helpful posts about generating heat maps produced through GPS coordinates in R, as per https://www.sportscidata.com/2019/03/26/how-to-create-gps-heatmaps-in-ggplot/ I am...

17 June 2019 866 0 View

Reversing a Thoracic Aorta Root Dilatation that was initially caused by high blood pressure?

Is there any research on if/how a slightly dilatated thoracic aorta root dilatation (caused by high blood pressure and not Marfan) can be successful reversed? If not, what is the physiological...

19 November 2018 3,879 5 View

Why don't d-orbitals split themselves, why does it take a ligand? why don't protons from ligand repel nucleus split d-orbitals?

why don't d-orbitals split themselves because of themselves without the presence of ligands? Electrons are indistinguishable. Why wouldn't it be more correct that protons from a ligand split the...

03 August 2024 3,589 3 View

Why doesn't chromium 2+ ion use all its d-orbitals to receive lone pairs from six waters in [Cr(H20)6)]3+?

I'm guessing it's because the ligand experiences too much electron repulsion or proton repulsion from the chromium to insert them close to the 3d-orbitals which are close to the metal nucleus. Is...

03 August 2024 1,370 1 View

Why aren't most metal oxides insoluble in water?

Why BaO (s) + H2O(l) ---> Ba 2+(aq) + 2 OH - (aq) if Oxygen loves owning all the electrons, why would it bind to hydrogen which competes with Oxygen for electron ownership more so than...

03 August 2024 5,392 1 View

What change would occur in physics if the three different sizes of the proton and the two sizes of the deuteron accepted as new physical constants?

For people today, the enigma of the size of the proton still remains enigmatic. However, being myself a researcher in new physical theory which makes it possible to extend the different standard...

28 July 2024 7,823 1 View

Choosing an appropriate TLD for mixed radiation?

Could you please recommend the appropriate TLD card model for both personal and environmental dosimetry in a high-energy proton accelerator center, specifically for dosimetry of beta, gamma, and...

17 June 2024 1,958 0 View

?How can we study proton radius with a 600keV high luminosity gamma ray ?? mark: gamma ray; proton; ?

Our gg collider will make a high luminosity gamma ray beam: 600keV, 10^9photon/pulse, 50Hz, small emittance angle:2.5mrad. We want to know how can use this gamma beam to study the characteristics...

03 June 2024 6,849 0 View

How is a proton generator made?

How is a proton generator created? Hydrogen seems to be the easiest method, using He gas and an ionized attraction means. But has someone achieved this?

31 May 2024 5,766 0 View

How can I differentiate the -NH group in the backbone and -NH2 group in the side chain of my poly(glutamine) polymer sample?

I have synthesized a poly(glutamine) sample and am currently analyzing it using NMR spectroscopy. I am facing challenges in differentiating the -NH protons from the backbone of the structure and...

12 May 2024 9,656 7 View

Sur la variation du pH en elctroanalyse du tramadol, il est possible d'obtenir une droite avec une pente de -0,00121 mV??

Need help. concerning the electroanalysis of tramadol, by varying the pH, I obtained according to the equation on the right a slope of -0.00121 mv. Is it possible? It is true that at different pHs...

04 May 2024 267 0 View

Polymerisation of Acid chloride?

Hello, I am currently conducting my Bachelor on a organic synthesis. Here, I first form an acid chloride by the addition of thionyl chloride and Dimethylformamide (which together form the...

21 April 2024 2,165 2 View