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Explain why the first ionization energy of transition elements are of similar? Why does lithium have a much lower first ionization than helium? Arrange the atoms of Cs,Mg,N and F in order of increasing:
a) electronegativity
b) atomic size
c) ionization energy
A solution is prepared by dissolving 4.9g sucrose (C12H22O11) in 175G water. Compute the boiling point of this solution. Sucrose is anon electrolyte.
Silicon has been doped with 5 x 10^22 m^-3 of boron atoms. Calculate the conductivity of silicon at (a) room temperature (32 C) (b) at (125 C)
The most common source of copper is the mineral chalcopyrite (CuFeS2) how many kilograms of chalcopyrite must be mined to obtain a 440 grams of pure copper.
How many moles of methane are produced when 82.6 moles of CO2 gas react with excess hydrogen gas? CO2+4H2----->CH4+2H2O I am having problems trying to set this problem up correctly, any help would be appreciated
A 1-L flask is filled with 1.30g of argon at 25C . A sample of ethane vapor is added to the same flask until the total pressure is 1.00 atm. What is the pressure of argon Par in the flask. What is the partial pressure of ethane, Pethane, in the fl..
Calculate the number of moles of Ca(NO3)2 originally present
Temperature is -3 degree Celsius. 10 kg of snow is covering the driveway. How much of salt would you need to melt the snow on the driveway. (freezing point is 0 degree Celsius, I=2.1)?Please provide solution with all steps
mom made the kids 2 l of kool-aid by mixing 5.0 g sugar c12h22o11 10.2 mg of kool-aid powder a proprietary mixture of
At 48 degrees C, dinitrogen tetroxide decomposes to a nitrogen dioxide with a rate constant of 1.5x10^7 S^-1. If the activation energy is 55 kJ/mol, determine the rate constant at 26 degree C
Briefly describe the process of recycling. Do you recycle? If yes, what types of items do you recycle? If not, why not?
In an acid/base titration, knowing that it took 13.14 mili litres of 0.1016 M sodium hydroxide, NaOH to reach the first endpoint of the titration,) from this information, mols of Phosphoric acid present in the sample is 1.335 mols.
vapor phases of water to all be in equilibrium with each other at 0.1 MPa (see equation below)? Explain in terms of Gibbs phase rule.
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