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Dear Sir, I would be grateful for your help, If you could explain the trend in boiling points from phosphine to stibine. I would also want to know why the boiling point of ammonia does not follow this trend?
An equimolar liquid mixture of benzene and toluene at 10C is fed continuously to a vessel in which mixture is heated to 50C.
What will be the velocity of the escaping electrons under these conditions? What is the de Broglie wavelength of the escaping electrons?
A chemist burns 0.8615 g of graphite (a form of carbon) in a new bomb calorimeter, and CO2 forms. If 393.5 kJ of heat is released per mole of graphite and T increases 2.613 K, what is the heat capacity of the bomb calorimeter.
Problem- What is the percent yield of the solid product when 17.14 g of iron(III) nitrate reacts in solution with excess sodium phosphate and 5.336 g of the precipitate is experimentally obtained
Carbon dioxide is heated in a constant pressure process from 15C and 101.3kPa to 86C Determine per unit mass the changes in:internal energy,volume
Problem- Calculate the molarity of a solution made by dissolving 12.7 grams of Na2CrO4\rm Na_2CrO_4 in enough water to form exactly 580mLmL of solution
Explain the secondary clarifier only produces Xr= 1,000 mg/l, as a result RAS is increased to 50% Q. Explain what is the actual residence time then? Does the F/M the MLVSS concentration as well as SRT change?
Describe the difference between an ionic bond and a covalent bond. Give an example of a compound that exhibits ionic bonding. Give an example of a compound that exhibits a covalent bond.
In one experiment, the partial pressure increased from zero to 100 Pa in 522 s in a first-order reaction when the initial concentration of pyruvate ions in 100mL of solution was 3.23 mmol L^-1. What is the rate constant of the reaction
How many grams Na3PO4 of will be needed to produce 475 mL of a solution that has a concentration of Na+ ions of 0.900 M ?
A line in the emission spectrum of an atom occurs at a wavelength of 560 nm. What is the energy difference between the two energy levels involved in this emission.
Hydroformylation, also known as the Oxo reaction, is a very important industrial process and has been practiced for many years. Initially cobalt catalysts were employed but these are limited in a number of ways including low regioselectivity for t..
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