Energy levels and electron configurations (including representation using orbital diagrams) of several common elements on the periodic table. Identify groups and periods of elements on the periodic table, and know the trends of reactivity, atomic size, ionization energy, and electron affinity within a group or period. Page 297 - 320; page 325 – 329; page 341 – 350 and page 353 – 359; page 393 – 420; * Chemical bonding and Lewis structures. Molecular geometry. Gases (concepts and problem
5.04H: Gas Stoichiometry Lab Worksheet Name: _________________________ Data and Observations: Present all relevant data in a data table below. Include an observations section for any observations that you made during the lab. (5 points) Data Table| Mass of magnesium strip (grams)|0.0304g| Volume of gas collected (mL)|10ml| Barometric pressure (atm)|1.1| Room Temperature (°C)|21 | Vapor pressure of the water (torr)|18.7| Calculations: 1. Write the balanced equation for the reaction conducted in this lab, including appropriate phase symbols. (2 points) Mg(s) + 2 HCl(aq) → H2(g) + MgCl2(aq) 2.
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.
5 c. 3 d. 3 E16.3 Multiple Choice—SEC Reporting Requirements a. 4 b. 5 c. 5 E16.4 Multiple Choice—SEC Reporting Requirements a. 4 b. 1 c. 5 d. 4 E16.5 Multiple Choice—Corporate Governance a.
when I used 23ml of sodium thiosulfate (Na2SO3) the time for the reaction was 2s, but when I used 11ml of sodium thiosulfate (Na2SO3) the time for the reaction was 5s. This tells me that… * Could it be possible (because of the scatter of your points around the line of best fit) to have a line (curve) that follows a different path? * Why? * What does this tell you about the conclusion you have made about your graph? * Use DETAILED scientific ideas, concepts and terminology to explain the shape of your graph.
CH 341 – Laboratory Techniques in Inorganic Chemistry Experiment 1: Identification of Stereochemical (Geometrical) Isomers of [Mo(CO)4(L)2] by Infra-Red Spectroscopy Abstract Purpose of this experiment is to prepareone isomer of molybdenum carbonyl complex, [Mo(CO)4(pip)2], and both possible isomers of [Mo(CO)4(PPH3)2] using convenient literature method. Examining the CO stretching region of the IR spectra, the isomers will be identified. Introduction Metal carbonyl considers as one of the most important class of organometallic compounds and many studies of their chemistry and their bonding characteristics has been done (2). Metal carbonyls were first considered as laboratory interests, but soon achieved huge industrial applications (6). The technique of infrared spectroscopy, in both the solid and solution phases, has proved to be of very useful in these studies.
0.00079 moles EDTA4- c. 0.00079 moles ZnI2 d. 0.0517 grams of ZnI2 are in the sample e. 0.0517/0.237= 21.8% f. Error Is 6.34% Lab Report: Part 1: In this lab we used the following supplies: * Zinc Iodide * Na2H2EDTA(s) * Calmagite indicator solution * pH 10 buffer solution * 6M Acetic Acid * Unknown Zinc Compound The main purpose for this part of the lab was to determine the amount of zinc ion in a sample of ZnI2 by titration. The two types of zinc: * Zinc iodide made by zinc and iodine * Commercially purchased zinc iodide (the
Water samples from the Clark Fork have been taken and will be tested using both absorption and emissions spectroscopy in order to check the levels of group IA and IIA metal ions. When electrons in an element are excited energy is released that can be measured as light. Each element releases different levels of energy that are observed as different wavelengths of light. With the proper equations (E=hv and E=hc/⋋), emission spectroscopy can be used to find the wavelength and frequency of light emitted by the excited electrons. This will help determine the types of ions present in the water sample.
Chemistry: Identifying Chemical Reactions Name_____________________________________________________ Date___________________________ Your text book identifies four different types of chemical reactions (section 16-4). Other sources identify as many as six types of chemical reactions. For now we will stick with the scheme used by your book. The four types of chemical reactions shown in your book are: a) Synthesis b) Decomposition c) Single displacement or Single replacement d) Double displacement or Single replacement e) Combustion Write balanced equations for each of the word equations below, then indicate which kind of reaction it is 1. Sodium bromide + Calcium hydroxide
Methodology A survey was employed to find out the attitude towards chemistry and its prediction on achievement in chemistry. The attitude was measured using two scales of measurement namely Likert and Guttman. The selected topics in chemistry were periodic table (PT); chemical bonding (CB) and organic chemistry (OC).