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What is the molar mass of a compound that diffuses 2.75 times more slowly than argon at the same temperature and pressure?
During a chemical change or reaction, a substance is changed into one or more different substances. The _________ composition and the physical
If a sample of pure silver (Ag) contains 3.35 x 1022 atoms of iodine, how many moles of silver are in the sample?
Use le chatelier principle to explain why the buffer prevents large changes from occurring in pH when (a) an acid enters the blood stream (b) and base enters the bloodstream.
Starting with Benzyl alcohol (PhCH2OH), ethyl acetoacetate (CH3COCH2COOEt) and any other neccesary organic or inorganic reagents outline a synthesis
Which of the following refers to particularly stable arrangements of amino acid residues in a protein that give rise to recurring patterns
Assume that 2.2 million metric tons of adipic acid will be synthesized yearly by industrial nitric acid oxidation, and for every mole of adipic acid produced a mole of N2O will be emmited into the atmosphere. Calculate the number of moles and mass..
Which geometry and central atom hybridization would you expect in the series BH4-, CH4, NH4+? (b)What would you expect for the magnitude and direction of the bond dipoles in this series
gave straight line relationship. It took 52.3 seconds for concentration of A to decrease from 0.667 M to 0.117 M. What is the half life of the reaciton when [A]o = 0.667 M?
what is the molality of a solution prepared by dissolving 10.0 grams of methylamine ch3nh2 in 50.0 ml of ethanol
Sketch the HOMO (Highest Occupied Molecular Orbital) and LUMO (Lowest Unoccupied Molecular Orbital) for pent-3-ene-2-one. Then explain why this orbital is HOMO and the other orbital is LUMO.
draw 3 compounds with molecular formula c5h10 with c-c double bond with no cis-trans isomers
small helium-neon lasers emit 3.50 mjs of light at 634 nm. how many photons does such a laser emit in one
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