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The entropy chage for vaporization of Hi at its boiling point is 89.0 J.K-1.mol-1. If the heat of vaporization of HI is 21.2 kJ.mol-1, what is the boiling point of HI?
Which do you think would be larger and why? The first ionization energy, IE1, of Ne,The second ionization energy, IE2, of Na
How many moles of oxygen are needed for the complete combustion of 9.88* 10^21 molecules of hexane?
the equation of line determined from a Beers law plot is y=0.195x+0.4, what is the resistance of an unknown water sample if the assumed concentration is 1.8ppm. please show your work.
During a HPLC experiment we used octaecylsilane (ODS) stationary phase. What are 2 other examples of reversed-phase stationary phases
If 26 of 6.6 was spilled, what is the minimum mass of that must be added to the spill to neutralize the acid?
The density of the resulting solution is 1.12g/mol. What is the molarity of the solution?
You are given the chemical reaction: 4AsF3 + 3C2Cl6 -> 4AsCl3 + 3C2Cl2F4.If 1.3618 moles of AsF3 are allowed to react with 1.000 mole of C2Cl6.
Explain the fact that KOH is much more soluble in liquid ammonia containing a little water than in pure liquid ammonia.
What is the molar solubility of PbI2 in water. For PbI2, Ksp=7.9x10-9. You may assume that the ions do not form ion pairs in solution.
A reaction vessel contains 13.9g of CO and 13.9g of O2. How many grams of CO2 could be produced according to the following reaction? 2CO + O2 ---> 2CO2
A vessel containing 45.0 cm3 of helium gas at 25°C and 106 kPa was inverted and placed in cold ethanol. As the gas contracted, ethanol was forced into the vessel to maintain the same pressure of helium.
The reaction of boron with carbon monoxide produces compounds with these skeletal structures: B--B--C--O and O--C--B--B--C--O. For each of these compounds, draw the lewis structure that minimizes formal charges.For each compound select the atoms t..
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