Synthesis of Methyl Stearate The purpose of this lab was the convert liquid methyl oleate to solid methyl stearate by catalytic hydrogenation. Firstly‚ we produced hydrogen gas using solid mossy zinc and sulfuric acid. Using the hydrogen produced in the previous reaction‚ we were able to convert the liquid methyl oleate to solid crystals of methyl stearate. A mineral oil was also used to bubbler was used to maintain the hydrogen pressure slightly above the atmospheric pressure and to prevent back-diffusion
Premium Hydrogen Catalysis Zinc
Fischer Esterification Kyle Peterson Chem. 243a Matt Judd‚ Sec. 25 Date Performed: 10/15/03 Abstract: The objective of this experiment is to efficiently perform a fischer esterification of 1-Hexanol to form water and hexyl acetate‚ and to confirm the esterification with a nuclear magnetic resonance (NMR) spectroscopy. It was found that 0.3963 grams hexyl acetate was formed with a percent yield of 33.2%. The product was confirmed using NMR‚ IR‚ and boiling point confirmation. Backround: A Fischer
Free Alcohol Acetic acid Oxygen
decay and can transform to two different atoms: Calcium-40 and Argon-40. Approximately 10.72% of beta decay is K-40 transforming to Ar-40 via electron capture. Electron capture occurs when a proton-saturated atom absorbs an electron from the inner shell and thus transforming a positively charged particle (proton) into a neutral particle (neutron). Since lava is liquid‚ any argon-40 gas previously trapped in lava will be able to escape as gas is less dense than liquid. When there is no argon gas in
Premium Radioactive decay Earth Electron
And The (Nobel) Award Goes To… Ernest Rutherford was born at Spring Grove near Nelson‚ New Zealand to a farmer named James Rutherford and his wife Martha Thompson. James had immigrated to New Zealand from Perth‚ Scotland to raise a home and a family. Ernest studied at Havelock School then Nelson College where he was studying when he won a scholarship to study at Canterbury College‚ the University of New Zealand. After gaining his Bachelor of Arts‚ Master of Arts‚ and Bachelor of Science Ernest
Premium Nuclear fission Neutron Atom
Grades K-5 Pencil Electrolysis Introduction: The process by which we separate the elements hydrogen and oxygen from water is called electrolysis. The word "lysis" means to dissolve or break apart‚ so the word "electrolysis" literally means to break something apart (in this case water) using electricity. It is difficult to break up water into it’s elements lots of energy is needed to do that. Through a chemical means though‚ we can separate the compound of water into the elements that combine to
Premium Atom Hydrogen Electrolysis
The element (einsteinium) has the atomic symbol of Es. Its atomic number is 99 while its atomic mass is 252. Einsteinium is located in period 7 of the periodic table as a part of the actinide series. It has 99 protons‚ 99 electrons‚ and 153 neutrons in its atoms. The physical appearance of einsteinium is not known‚ but it is predicted to be metallic and silvery white or grey. Einsteinium is classified as a metal and is a solid at room temperature. It has a melting point of 860°C and an atomic radius
Free Chemical element Atom Periodic table
and energy are given off from the decaying nucleus. * α and β radiation is in the form of particles * γ radiation is in the form of waves-kind of like light but higher frequency . Nuclear Decay * Alpha particles consist of two protons and two neutrons‚ identical to the nucleus of a helium atom. * A sheet of paper or a person’s surface layer of skin will stop them. * Alpha particles are only considered hazardous to a person’s health if they are ingested or inhaled and
Premium Radioactive decay Proton
Moseley’s law provided a reasonably complete experimental set of data supporting Ernest Rutherford/Antonius Van den Broek concept of the atom‚ in which atomic number is understood as representing physically exactly the number of positive charges (protons) in a central atomic nucleus Conclusion * Because of Moseley’s work‚ the modern periodic table is based on the atomic numbers of the elements. * law states that the frequency fкα of the Kα‚ lines in X-ray emission spectra from elements
Premium Chemical element Atomic number Chemistry
All atoms are electrically neutral i.e. they have the same amounts of negative and positive charge inside them. The electrons carry negative charge and the protons carry positive charge. The basic unit of charge (called the elementary charge)‚ is the amount of charge carried by one electron. The charge on a single electron is qe = 1‚ 6x10−19 C. All other charges in the universe consist of an integer multiple of this charge (i.e. Q = nqe). This is known as charge quantisation. All the matter
Premium Atom Electron Electric charge
INTRODUCTION BACKGROUND OF COMPANY The Perusahaan Otomobil Kedua Sendirian Berhad (English: Second Automobile Manufacturer Private Limited)‚ usually abbreviated to Perodua is Malaysia’s second largest automobile manufacturer after Proton. It was established in 1992 and launched their first car‚ the Perodua Kancil in August 1994.’M2’ was refers to the codename which was used when the project to establish Perodua was still Top Secret. The shareholders of Perodua are UMW Corporation Sdn Bhd with
Premium Perodua Daihatsu Proton Wira