CHEM 402 HW 4

see attachment Lab #3: Aldehydes and Ketones Introduction: In this lab you will use your “Food Chemistry Molecular Model Kit” to construct and explain a variety of molecular models. You will need to take a few photos of your work. Please make sure that you photograph your models on a

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The certified percentage of nickel in a particular NIST reference steel sample is 1.12%, and the standard deviation associated with this number is 0.03%. A new spectrometric method for the determination of nickel produced the following percentages: 1.10, 1.08, 1.09, 1.12, 1.09. ls there an indication of bias in the

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Read “Who Kidnapped Fluffy?!!” – the document contains information about the scenario and the chemical principles used in the virtual lab.  Download/print “Who Kidnapped Fluffy?!! – Data Collection and Analysis.”  Watch the video below, pausing as needed, and fill in the data table in the lab document, and then write

9 Physical and Chemical Changes Virtual Lab DATA COLLECTION: Be as descriptive and detailed as possible and include physical state, color, opacity, etc. in your observations!!! Watch the video linked in Falcon Online Content for these observations! Chemicals Reacted Appearance of Chemicals Before Mixing Observations After Chemicals Reacted, especially what

IR Correlation Table C-H Alkanes (stretch) 3000-2850 s -CH3 (bend) 1450 & 1375 m -CH2 (bend) 1465 m Alkenes (stretch) 3100-3000 m (out-of-plane) 1000-650 s Aromatics (stretch) 3150-3050 s (out-of-plane) 900-690 s Alkyne (stretch) ~3300 s Aldehyde 2900-2700 w C=C Alkene 1680-1600 m-w Aromatic 1600 & 1475 m, w C≡C

     A pair of 100 mL samples of water are taken from a well bored into a large underground salt (NaCl) deposit. Sample #1 is from the top of the well, and is initially at 32 °C. Sample #2 is from a depth of 50. m, and is initially at

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The story of Mary Shelley’s Frankenstein is similar to that of a Greek tragedy and namely the myth of the titan, Prometheus. The characters as well as the plot are all similar between the two stories. Many have argued that Frankenstein is based on the Prometheus myth. I will attempt

Explain why increasing the concentration of hydrochloric acid would affect the rate of reaction

see doc  The following series of reactions were carried out by Phillips and Kenyon and reported in 1923.  Starting from the same compound, two reaction sequences were carried out.  These sequences resulted in the synthesis of 3A and 3B.  However, the enantiomeric purity of 3A and 3B is not the