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The enthalpy of neutralization of the first proton of H2S is -33.7kJ/mol. Determine the first acid ionization energy of H2S(aq).
Organic hydrogenation reactions, in which H2 and an "unsaturated" organic compound combine, are used in the food, fuel, and polymer industries. In the simplest case, ethene (C2H4) and H2 form ethane (C2H6)
Using the molecular orbital theory, which one of the following is paramagnetic?
one mole of copper at a uniform temperature of 0degc is placed inthermal contact with a second mole of copper which
What is the stoichiometric coefficient for oxygen when the following reaction is balanced using the smallest whole number coefficients?
A lab procedure requires 35.0 mL of a liquid. Which of the following glassware should be used to obtain the volume with the greatest number of significant figures: 50mL beaker, 100mL erlenmeyer flask, 250mL graduated cylinder, 50mL graduated cylin..
Given that an atom of a semiconductor has a diameter of 3.10 A, what is the maximum number of moles that fit in the channel of a processor chip that is 79.9 nm long, 76.1 nm wide and 315 nm thick
Calculate the pH of the solution when 20.00 mL of 0.10 M CH3CO2H (Ka= 1.76 x 10^-5) has been titrated
A sample of calcium nitrate, Ca(NO3)2, with a formula weight of 164 g/mol, has 5.00 x 1025 atoms of oxygen. How many kilograms of Ca(NO3)2 are present
Empirical formula Pt(NH3)2Cl3. Sketch at least four isomers which correspond with the given empirical formula and have a molecular mass of 670 g/mol. What are some of these isomers and in a complex ion, can a chlorine atom be bonded to two other a..
Originally, 1.0 mL Hydrochloric acid is added to 1.0g of an unknown amine and 28 mL water in the first step of the Synthesis of Acetamides. If we added 3X the amount of hydrochloric acid instead, why would there be no product?
at a pressure of 1 atmosphere and a temperature of 25 degc 500 cm3 of the gas hx has a mass of 0.400 g. calculate the
if you have 310 mL of water at 25 degrees celsius and 110mL of water at 95 degrees celcius, what is the final temperature of the mixture?
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