Chemistry is the science of matter, especially its chemical reactions, but also its composition, structure and properties. Chemistry is concerned... | Contact experts in Chemistry to get answers
5,535 views 3,349 posts
Questions related to Chemistry
Why is it that in the attached image: H4 is not coupling with C5, C6 if they are separated by two bonds? Why does H3,5 giving a cross peak with C3,5 if they are pertaining to equivalent centres?...
10 February 2024 5,746 6 View
I determine the temporal behavior, frequency, and strain dependency of the hydrogel by rheology. I just wonder if I can determine the mechanical properties of my gel by using G' and G" taken from...
08 February 2024 4,707 2 View
MacIntyre and Boghossian on Relativism and Justification H.G. Callaway Draft of 30 January 2024 (1,260ww +notes) The contrast between Alasdair MacIntyre and Paul Boghossian on epistemic...
31 January 2024 6,828 3 View
Please help me with ideal steps to restart the NAMD simulation from a particular step
30 January 2024 5,233 2 View
CIF files or COD ID
30 January 2024 7,107 1 View
How do creative and critical thinking affects the development of 21st-century competencies?
29 January 2024 7,986 5 View
I am looking for ways teaching specifically science teaching can be improved by using visualisers in classroom .This should to help student to understand clearly ,avoid any misconceptions and...
28 January 2024 1,146 4 View
Pressure data has been recorded at each crank angle in a diesel engine, and I couldn't able to understand how to calculate the temperature from that data. is it possible or any other way to...
25 January 2024 2,887 3 View
I have come across a suggestion to use HF and HNO3 mixture. But exact ratio is not clarified. What should be the exact ratio of these two acids to smoothly pickle Ni sheets? Any impurity in form...
25 January 2024 4,150 2 View
Hello everyone I need your help with a problem I can't seem to solven : I'm planning to do some sequencing of freshwater algae. So I referred to the primer pair made by Stoeck et al. 2010 and...
24 January 2024 5,907 4 View
While performing STD screening I noticed that I have signals in my difference spectras, that are constant accross all samples, also if there is no ligand and only protein. The protein was...
19 January 2024 6,889 2 View
Can coulombic efficiency be greater than 100 for galvanostatic charge-discharge if the discharging time is greater than the charging time at constant currents? Is there something I'm doing wrong?
19 January 2024 195 0 View
I'm working with TGA (Thermogravimetric analysis) + DTA (Differential thermal analysis) of milk proteins on a STA2500 Regulus equipment by Netzch. I have two standards: one of B-Lactoglobulin and...
19 January 2024 2,333 1 View
What are the risks of water contamination from chemical fertilizers?
15 January 2024 6,070 5 View
Identification of metasomatic components in the mantle source
05 January 2024 9,181 0 View
Hello Fellow researchers !!!! I have been trying to isolate mRNA from extracted RNA (Alfalfa Plant leaves) using Dynabeads mRNA purification kit. I have been following the protocol exactly the...
02 January 2024 2,174 8 View
Why two electric field lines are normal to equipotential and relationship between electric field and electric dipole distance?
03 December 2023 9,656 0 View
I'm studying on the rate-dependent plasticity of HDPE under different loading rate. I have found that the TLV (two-layer viscoplasticity) model is promising for numerical simulating the...
23 November 2023 8,917 0 View
I need to model a fluid that is a mixture of Ethanol and petroleum products (Gasoline). Which equation of state(EoS) and thermodynamic model is most suitable? Peng-Robinson, RKS or anyother?
22 November 2023 749 0 View
Is it by using the inhibition (%) formula or simply plot a standard curve using absorbance and concentrations? If using the inhibition (%) formula, Is it correct if the negative control color is...
06 November 2023 5,199 2 View
I want to know more about Granites and their ore deposites.
05 November 2023 3,439 0 View
We recently bought a STA 8000, PerkinElmer, Netherlands for TG DTA and DSC where we use Nitrogen as a purge gas to run sample. I would like to run sample under Oxygen environment to burn organic...
22 October 2023 1,751 0 View
I have a case in my field research I want to know the consistency of the fish troops at Market X I recorded data for 7 days (from August 11 to August 17) regarding: (A) Fish sold by traders at...
28 September 2023 9,463 0 View
Hello! Could you help me please with such a question: How do you measure pH of Gold suspension during pH adjustment? I tried to use a regular pH meter and pH strips during pH adjustment of Gold...
25 September 2023 7,254 2 View