Review and cite MASS protocol, troubleshooting and other methodology information | Contact experts in MASS to get answers
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Questions related to Mass
How many g of NH4H2PO4 are required to react with 1 g of Ca(OH)2 to produce Ca10(PO4)6(OH)2 (Ca/P=1.667) according to the equation 10Ca (OH)2 + 6H3PO4 -> Ca10(PO4)6(OH)2+8H2O
10 August 2021 6,937 2 View
hello everyone, i'm trying to model a 3D one story buiding with mass IIrregularity, the model has 4 elastic columns and rigid diaphragm. the model has no beam, so i used rigid diaphragm to equal...
09 August 2021 9,126 5 View
Bearman, et al. (1987) in his paper: EXPERIMENTS ON FLOW-INDUCED VIBRATION OF A SQUARE-SECTION CYLINDER, outlines his method of calculating Effective Mass as follows: "The effective mass of the...
08 August 2021 1,988 2 View
while studying the longitudinal momentum distribution for any halo nuclei during a reaction in lab frame .I want to change this distribution into the center of mass(CM) frame .is it possible...
25 July 2021 4,800 5 View
I am working on phase change material. I have confused about deciding on the mass of phase change material (PCM) in a 2D simulation when converted 3D experimental problem into a 2D CFD...
24 July 2021 686 4 View
For supercapacitors, we get symmetric triangular charge discharge curves with linear slope. Hence the formula C=I*t/m*V can be used. But for pseudo capacitors the charge discharge curves are no...
22 July 2021 1,110 4 View
I have conducted submersion testing in 3.5wt% of NaCl of various different metals in combination. One such metal I used in combination was extruded aluminum 6063 T6 with cold worked zinc plated...
19 July 2021 8,548 4 View
It has been suggested by my platform that I normalise my mass spec metabolite data by median. Is this necessary, and what is the purpose of this type of normalisation in the context of mass spec....
18 July 2021 8,972 3 View
Looking for an easy/efficient way to internally calibrate mass spectra.
14 July 2021 10,019 2 View
multiple interrupted stitches? single mass plication stitch?
08 July 2021 669 2 View
When I analyze peptides in MALDI TOF sometimes I observe exactly the mass in the first peak of the isotopic envelope (not M+H). Is it correct? For example: my peptide has 2111.20 g/mol and M+H is...
08 July 2021 8,273 2 View
Hello I would like to measure the antioxidant activity of two pure compounds A and B (of plant origin), then I will make a comparison between the two the formula I used to calculate the mass in...
05 July 2021 9,270 2 View
Hello! I use Q Exactive mostly for intact mass analysis and peptide mapping of proteins in a range of 20-150 kDa and the software is Xcalibur. During instrumental set up, I want to start using...
02 July 2021 1,597 3 View
By using Mass spec to know the type of proteins present on the leaves of Ramie
30 June 2021 4,747 1 View
Mass spec, protein abundance, NSAF
24 June 2021 6,684 1 View
I have a freshly synthesized formyl-CoA but not sure if it really is. Some published articles introduce that they used ToF Mass spectroscopy. But as a matter of money and time, for me it will be...
24 June 2021 8,982 1 View
Dear all, I want to clean cylindrical pipe with a steel brush that I have attached in the picture. Now I want to calculate the torque required to rotate the brush inside the cylinder. Can anyone...
21 June 2021 8,431 6 View
I think the volumes of the particles should affect the value of the Debye length.
19 June 2021 9,813 0 View
Hello everyone, I am trying to do a scan by using ghost atoms placed in the center of mass of two monomere. The thing is it seems that Gaussian want to define those ghost atom with a basis set...
10 June 2021 1,351 2 View
Taken: Mass (bike+rider)= 100kg, speed=35kmph on flat road, gradients=1%,15%. I tried calculating the speed but the results are not logically convincing ( Take a look at the picture for a better...
07 June 2021 3,378 3 View
I have been told that I should calculate the center of mass of the rings and the angles. I was able to calculate the center of mass but not the center's normal angle. Could anyone help me?
05 June 2021 6,299 4 View
I need help reading this plot (attached) to get acceleration data in (g's). I see few calculations online such as Miles equation but am still confused.
03 June 2021 4,912 0 View
According to the standard model gluon binding energy of quarks (m=e/c^2) accounts for over 98 percent of the inertial mass of nucleons. Considering that gluons and quarks are purely quantum...
26 May 2021 8,921 4 View
I have prepared 0,7232 g of sample in 50 ml and then diluted 5 ml in 50 ml. Reported concentration AAS is 11,83. What formula should I use to calculate the concentration in mg/kg? I found this...
25 May 2021 6,284 1 View