CHM 2210 – Fall 2012 – Test 4 Name (print):_________________________ 1. What is the IUPAC name for the following compound? a) b) c) d) 3-methyl-1-penten-4-yne 3-methyl-1-buten-4-yne 4-methyl-4-penten-1-yne 4-methyl-4-buten-1-yne 2. What is the major organic product obtained from the following reaction? 2 equiv Br2 a) b) c) d) 2‚3-dibromobutane 2‚2‚3‚3-tetrabromobutane 2‚3-dibromobutene 2‚2-dibromobutane 3. What is the best choice of reagent(s) to perform the following transformation
Premium Chlorine Chemistry Bromine
There are three methods of desalination which include‚ pressure‚ thermal‚ and electrical. Thermal desalination has been around since the stone ages‚ the water is boiled and the steam is eventually collect by leaving the salt behind. The use of an electrical fields to produce fresh water‚ this system uses far less energy than other methods. There’s a certain phrase and technique in which they use that is called‚ electromechanically mediated seawater desalination. Pressure desalination also known
Premium Water Chemistry Temperature
In the Stoichiometry Challenge Lab we compared the theoretical results of the reaction between sodium carbonate (Na2CO3) and sulfuric acid (H2SO4) with the actual data we found. I hypothesised that If the mole ratio between Na2SO4 and H2SO4 is 1:1 then when I react 0.5 grams of Na2SO4 (reactant with H2SO4) I should get 0.669 grams of Na2SO4. The actual reaction between .05 grams of Na2CO3 and 5 mL of of H2SO4 produced 0.79g of Na2SO4. When I were testing the reaction‚ I measured out the reactants
Premium Chemistry Sodium hydroxide Chemical reaction
Catalytic reduction of hexacynoferrate (III) The silver nanoparticles were used in the catalytic electron transfer reaction between hexacyanoferrate (III) and sodium borohydride‚ resulting in the formation of hexacyanoferrate (II) ions and dihydrogen borate ions. The redox reaction is depicted as: [BH4] - + 8[Fe (CN) 6] -3 + 3H2O H2BO3 - + 8[Fe (CN) 6] -4+ 8H+ The reaction can even proceed without a catalyst‚ but it has been reported that it is a slow reaction‚ which follows zero-order
Premium Chemistry Sodium chloride Solubility
First‚ the students label the petri dishes‚ with the elements Mg‚ Ca‚ and Al. Next‚ the students place the different elements on the top of the petri dishes and then filled the dishes with water. After that‚ they placed each element in the water and put the top on and recorded what happened. Then they opened the dish a put a drop of phenolphthalein on each element and recorded the reaction. The students discovered that sodium and magnesium reacted‚ but aluminum did not. Sodium turned into a gas when
Premium Water Chemistry Chemical reaction
History of Calcium- Calcium is a very interesting element that has a lot to tell about itself. There is much history to be learned about calcium. Calcium was actually discovered by Humphry Davy in 1808. Calcium’s name happens to come from the latin ‘calx’ meaning lime. Lime (calcium oxide‚ CaO) was a useful material that was created by heating limestone. Before the discovery of calcium‚ a man named Antoine Lavoisier classified the lime as “earth” because it was very difficult‚ almost
Premium Water Chemistry Acid
Hazardous Chemical Mustard Gas Imagine sitting in a trench during World War 1 with your fellow soldiers and someone shouts‚ “Incoming!” you duck deeper into the trench and fumble for your helmet‚ not realizing that it could be your last seconds on this earth. Instead you smell a pungent mustard aroma‚ struggling to breath‚ it subsides after a couple of minutes. Without knowing it you have been exposed to a new chemical used by the Germans‚ code named LOST‚ which referred to the last names of the
Premium World War II World War I Bacteria
Tarnas 1 Kulananalu Tarnas Professor Kirk Organic Chemistry Lab 8 March 2014 Project 4: Interconversion of 4-tert-butylcyclohexanol and 4-tert-butylcyclohexanone Intro: It is truly incredible how the smallest differences between molecules can lead them to react and behave entirely differently. These differences are perhaps most highlighted in the medical field where stereochemistry of a molecule can be the difference between having a medically active‚ effective drug and a toxic‚ potentially
Premium Chlorine Alcohol
In my science project I will be doing “What is the fastest ways to cool soda?”. I believe‚ that the salted ice water bath will be the most effective one and cool the sodas the fastest. The salted ice bath with water can lower the temperature of the soda to 44 degrees in 5 minutes. There are several ways that I could cool soda. Some of the most popular methods to cool are in a salted ice bath with water‚ ice bath no water‚ and the freezer. I will be testing these ways with different types of soda
Premium Water Chemistry Carbon dioxide
Lab 6: Organic Compound Analysis Isabella O’Toole CHY 116 Friday 1:15-4:00 Lab Conducted on 4-12-13 and 4-19-13 4-26-13 This lab was conducted in order to determine the chemical composition of an unknown organic acid. A known mass of acid was dissolved into 30mL of either water or methanol (depending on solubility) and titrated with standardized sodium hydroxide. Data from this allowed the molar
Premium Acid Sodium hydroxide Melting point