A reaction in which a substance reacts with oxygen and produces water as one of the products is often referred to a s Combustion reaction. Identify the combustion reactions from the reactions shown on this worksheet. 22. Acid-base (or neutralization) reactions are recognized by the presence of an acid in the reactants, and water in the products. Identify the acid-base reactions from the reactions shown on this worksheet.
Calculations involving the Mole, Avogadro’s Number, Molar Mass, Mole-Mole and Mass-Mole calculations in chemical equations. Combustion analysis and calculation of empirical and molecular formulas from composition analysis. Electrolytes and non-electrolytes. Precipitation reactions and solubility rules. Writing balanced molecular equations and net ionic equations.
2 marks 4 Draw the structural formula of Compound G. 1 mark 5 Using the chemical shift correlation for 13C NMR, predict the number of peaks for Compound G and draw in the position of the peaks on the blank spectrum below, annotating each peak with its corresponding structure. (2 marks) 6 Draw the structural formula for 2-chloro but-2-ene. Below this draw a structural formula of an isomer of 2-chloro but-2-ene and name this substance.
Each of the three reactions are heated at reflux, cooled, and filtered, yielding their respective products. Part A: The reaction for the formation of [Mo(CO)4(HNC5H10)2] complex. OC OC H10C5HN H10C5HN CO CO CO CO Mo Mo Mo Mo CO CO H10C5HN H10C5HN CO CO CO CO CO CO + 2 HNC5H10 + 2 HNC5H10 Cis-isomer Cis-isomer Part B The reaction for the formation of cis- [Mo(CO)4(PPh3)2] complex CO CO CO CO OC OC Mo Mo Mo Mo OC OC CO
4. Using your definition of substance, classify the following as either a pure substance or a mixture a. ocean water b. air c. granite d. wood e. wine f. liquid nitrogen Part of studying chemistry is being able to form pictures in your mind of what matter looks like on an atomic or molecular level – picturing what kinds of atoms or molecules a particular substance is made of. We can classify the substance based on what types of atoms and molecules it’s made of. We use these images as a way of representing substances. Consider the drawings below: These images show methane molecules (CH4) in each of the three states of matter: solid, liquid, and gas.
The bromine is acting first like an electrophile, and then after bromine has broken the π bond, a carbocation has formed, and a bromide ion has been created, the bromide ion then acts as the nucleophile and forms a bond with the carbocation. This experiment uses bromination, the specific name of halogenation with bromine. In order to for bromination to occur bromine must first be generated. This is done in situ through the oxidation of glacid acetic acid and puridinum bromide perbromide. Once generation is accomplished the available bromine can be brominated.
1) Jeffrey Cox CHE111-DL01 Lab number 10 Stoichiometry of a Precipitation Reaction 2) Purpose/ Intro. In this lab we will be able to calculate the actual, theoretical, and percent yield of the product from a precipitation reaction. We will thusly learn the concepts of solubility and the formation of a precipitate. A precipitate reaction is a reaction in which soluble ions in separate solutions are mixed together to form an insoluble compound that settles out of the combined solution as a solid. The solid then is the insoluble compound, called a precipitate.
SEPARATION OF A MIXTURE OF SUBSTANCES LAB Purpose: Every chemical has a set of defined physical properties, and when combined they present a unique fingerprint for that chemical. When chemicals are present in a mixture, these unique physical properties can be utilized to separate the chemicals into their pure states. This experiment will give you experience in separating the components in a three-compound mixture; ammonium chloride, sodium chloride (table salt), and silicon dioxide (sand). Background: Because there are 3 components in our mixture, we will need several techniques to separate them. For this particular exercise, you should be familiar with the following: • Sublimation: Many chemicals will sublime (phase change from solid state to gas state) provided the right conditions.
In order to find the concentration of NaOH we need to tag along the following steps: a- note down the balanced chemical equation for the reaction C8H5O5K+NaOH→C8H4O4KNa+H2O b- pull out applicable information from the experiment: C8H5O5K V=0.025 dm3 C=0.2M NaOH V=0.021 dm3 C= ?? c- calculate number of moles