The aim of the experiment is determination of a mount of bismuth in Pepto-Bismol antacid tablets using Atomic Absorption Spectrometer instrument (AAS) and inductively coupled plasma-optical emission spectroscopy (ICP-OES) instrument. As well as to see the interpretation of the resultant data from the instruments programs using curves and correct calculations.     Introduction Bismuth one …

The Introduction Bismuth one of the most importantRead More »

Why methionine as the initiating amino acid? Production of methionine in the supposed prebiotic chemistry conditions, present no particular challenges (Kim and Benner, 2018) . Methionine could be initially incorporated into the primordial RNA-dependent world as a cofactor because, among others, of its involvement in methyltransferase activities although spontaneous emergence of S-Adenosylmethionine in the RNA …

Why preferentially interacts with its codon AUG (Mellersh,Read More »

  Mohamad Fauzi Ahmad1,4, Faridah Sonsudin2, Rosiyah Yahya1, Mardiana Said3, Norliza Baharom4, Adlan Akram Mohamad Mazuki4, Osman Zakaria4 1Chemistry Department, Faculty of Science 2Centre for Foundation Studies in Science 3 Infra Analysis Laboratory, IPPP University of Malaya, 50603, Kuala Lumpur, Malaysia. 4Chemical Group, National Metrology Institute of Malaysia (NMIM),  Lot PT 4803, Bandar Baru Salak …

Mohamad elektron penghantaran (TEM) digunakan untuk menganalisa perubahanRead More »

In the last few years, the invention of a new group of mesoporous silicate or aluminosilicate molecular sieves which was called M41S has received much attention in some areas of nanotechnology, chemical, engineering and physical sciences. M41S are broadly classified into four main categories including ordered hexagonal pore structure of MCM-41, cubic pore structure of …

In for scientists because it provides a lotRead More »

 “C60 behaves chemically like an electron deficient alkene, since it has sp2 carbon atoms but tends to avoid double bonds in the pentagonal rings, which causes poor electron delocalisation throughout the molecule” (Unwin, 2018) 3. This means that C60 behaves chemically like an electron deficient alkene and so readily takes place in addition reactions; like the …

“C60 behaves chemically like an electron deficient alkene,Read More »

Teachers should be absolute experts in their field and exemplary influences to their students before attempting to teach in a school. Excellent teachers are certainly important, as they are the ones who have knowledge about their topic and it is their responsibility to impart it on the students, as well as to motivate and inspire. …

Is it the teachers or good facilities that lead to excellent academic achievementRead More »