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As part of an internship in a petrochemical company you are given the task of identifying the fractions coming off the distillation tower. The current fraction shows a 1H NMR with only peaks for methyl (CH3) and methylene (CH2) groups, but the integral ratio is inconclusive. You run the sample through the mass spectrometer and find the highest mass peak at M/Z 142 with increasingly larger peaks at 113, 99, and 85.
(a) Draw the skeletal structure of the main compound in your sample.b. give IUPAC name
A welder uses 20 gallons of gaseous acctylene (C2H4). What volume of O2 gas measured at the same conditions is consumed Given the following equation
400cm3 of glycerol, C3H8O3 (density= 1.26 g cm-3) is added to a kilogram of water. What is the mole fraction of C3H8O3 in the solution?
How many additional mL of 0.0750 M Ca(OH)2 or ).100 M HCl would be required to neutralize the solution?
Write the structure of a different product that could have been formed if you used ethanol containing substantial amount of water instead of the absolute ethanol
Calculate the hydrogen-ion concentration [H+] for the aqueous solution in which [OH-] is 1 x 10-11 mol/L. Is this solution acididc, basic, or neutral?
Various types of medicines use in daily life? and classify them into analgesics, antipyretics, antibiotics, sedatives, antiseptics.
The rotation constant for H2 is 60.80 cm-1 the harmonic frequency is 4395.3 cm-1 and the anharmonicity constant is 117.90 cm-1. calculate the frequency at which the Q branch first overtone will be found.
Which of the following compounds has the greatest Coulomb force. Which has the smallest? Enter the name of the compound.
write a chemical equation for the formation of Na and N2 from sodium azide
A solution of ammonia and water contains 3.20×10^25 water molecules and 8.10×10^24 ammonia molecules. How many total hydrogen atoms are in this solution?
The initial rate of a reaction 2A + 3B -> C + 2D was measured using different initial concentrations of A and B. Calculate the value of k
What is the pressure of a 3.00 L gas vessel that has 18.0 grams of helium at 25 degrees Celsius
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