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Problem- What phase transition is occurring when a black deposit of tungsten metal collects on the inside of a lightbulb whose filament is tungsten metal.
Any expert is able to provide answer for this problem in very short time
A mixture of Compound X and its enantiomer are placed in the polarimeter and the observed rotation is -5.1 degrees. Which enantiomer is in excess (+ or -)? Calculate the enantiometric
Calculate the work energy, w, gained or lost by the system when a gas expands from 15 L to 35 L against a constant external pressure
A certainly gaseous solute dissolves in water, evolving 12.0 kJ of heat. Its solubility at 25 C and 4.00 atm is 0.0200 M. Would you expect the solubility to be greater than 0.0200 M at: a. 5 C and 6 atm? b. 50 C and 2 atm? c. 20 C and 4 atm? d. 25..
A 0.0355 g sample of an unknown molecular compound is dissolved in 1.000 g of liquid camphor at 200.0°C. Upon cooling, the camphor freezes at 157.7°C. Calculate the molar mass of the unknown compound.
if you are using 15. ml of 6.0 h2o2 by mass mm and you assume that the density of the solution is 1.0 gml and that all
Problem- How much work does a gas do when is expands against a constant pressure of 0.500 atm from a volume of 50.00 ml to a volume of 350.00 ml
A compounds 'H NMR spectrum shows resonance at 9.28 and 7.50 ppm what possible structural subunit does the compound contain
You need to load 10 ug of protein into one of the wells of a gel. This needs to be in 1x buffer and in a total volume of 15 uL. You are given a 10 ug/uL solution of protein, a 5x buffer, and water. How much of each should you mix to load the gel c..
what type of intermolecular forces are between ch3ch2ch2cl and
Question- Identify the following statements as true or false. (Use the drop-down menu and select "True" or "False" for each. You must get all 6 correct.) If a process increases the randomness of the particles of a system, the entropy of the system ..
What is the structure for an H NMR of C7H9NO giving signals of: 6.93, (0.93 H, triplet); 6.20 (1.03 H, doublet); 6.13 (1.01 H, doublet); 6.05 (1.03 H, singlet); 3.62 (3.00 H, singlet); 3.56 (3.01 H, singlet)
What is the pH of a buffer that results when .50 mole of H3PO4 is mixed with .25 mole of NaOH and diluted with water to 1.00 L The acid disassociation constants of phosphoric acid
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