Learning Activity 02. Solution Stoichiometry 1. How many grams of Calcium phosphate can be produced from the reaction of 2.50 L of 0.250 M calcium chloride and excess of phosphoric acid?

Which of the following factors primarily dictates the distribution of terrestrial biomes on Earth? The history of human development and civilization ㅎㅎㅎ The population density of animals Climate variables like temperature and precipitation The prevalence of certain rock and soil types

Imagine that you analyzed the original distillation mixture from Exp #3 using a Gas Chromatography instrument that is equipped with both a Flame Ionization Detector (FID) and a Mass Spectrometer (MS). Use the “GC-FID/MS Template” provided in the Experiment folder (if you cannot print it or annotate it, then you may hand-draw the template and your answers on a piece of paper). For this question, and this question only, you may very neatly hand- draw or use ChemDraw to add structures to the spectra   i) On the “GC-FID/MS Template,” draw the FID spectrum for the Exp #5 original mixture. Assume that the compounds elute from the column at 5.13 minutes, 7.61 minutes, and 10.43 minutes. Clearly label each signal with the corresponding compound name. Signals should not be drawn as more than “30 seconds wide.” Each signal should include a retention time below the signal (as described above).   ii) On the “GC-FID/MS Template,” draw the molecular ion isotope pattern that corresponds to the…

A number of compounds have been selected as possible unknowns for this experiment. They are listed (arabinose, fructose, galactose, glucose, lactose ,maltose, mannitol, ribulose, starch, sucrose, xylose) Consider the structures of each unknown . The first two answer (in the box) have been done as examples The answer is made by taking the number in the box and choosing the correct answer Start mannitol Molisch Test (+) arabinose, fructose, galactose, glucose, lactose, maltose, ribulose, starch, sucrose, xylose (+) 1 Iodine/KI Test (-) 3 Benedict's Test (+) 4 (-) 5 Barfoed's Test (+) 6 (+) Seliwan. Test 8 Bial's Test Bial's Test (-) (+) (-) (+) 10 11 12