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What is the concentration of hydrogen ions in a solution containing 0.321 M HOCN (cyanic acid) and 0.223 M (NaOCN) (sodium cyanate)? The ionization constant of cyanic acid is 3.5 × 10-4.
Formulate a rule/guideline for determining the number of valence electrons from an electron configuration in elements with d electrons present
White phosphorus is a molecular solid made of molecules of P4. A 3.88 g sample of white phosphorus starts at 24oC. Calculate the amount of heat (in J) required to melt the sample.
How much energy is released per Kg of Dilithium formed? Mass of one atom of 6 Li is 6.015121 amu. Do not know where to start.
An experiment requires 46.0 of ethylene glycol, a liquid whose density is 1.114 . Rather than weigh the sample on a balance, a chemist chooses to dispense the liquid using a graduated cylinder.
A sample of urea contains 1.009 g N, 0.145 g H, 0.432 g C, and 0.576 g O. What is the empirical formula of urea?
If I have 100.00 mL of 0.350 M latic acid already, how many grams of sodium lactate (molar mass = 112.06 g/mol) will I neeed to add to this solution to make the preceding buffer? Assume the volume does not change as the sodium lactate is added.
Draw the side reactions that occur in the preparation of tert-butyl chloride from tert-butyl alcohol. One is involving isobutylene and the other is ethyl tert-butyl ether
The strengths of oxidants and reductants on opposite sides of redox equations correlate oppositely. For a strong reductant Eored should be negative.
If 46.1 g Zn at 18 degrees celsius is placed in 80 g h20 at 75 degrees Celsius what is the final temperature of the mixture. The specific heat capacities of zinc and water are 0.388 J/ g*k and 4.184 J/g*K
Consider the reaction with the rate law, Rate = k[BrO3-][Br-][H+]2 By what factor does the rate change if the concentration of BrO3- is tripled and that of Br- is tripled
An aqueous solution of glycerol C3H8O3 is 48% glycerol by mass. Calculate the molality of the glycerol solution
Describe the fictional portrayals of the courtroom, including the trial process, the roles of the prosecution and defense, the roles of the courtroom participants (expand your response from the Week Five CheckPoint), and the handling or implementa..
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