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Why is there a differance in the change in enthalpy and the change in internal engery for the zinc/hydrochloric acid reaction but not for the neutralization reactions?
Containers of rubbing alchohol and ammonia are opened simultaniosly in a room. Which will you smell first and why?
Assume that aspartame is a molecular solid and does not ionize when it dissolves in water. Kf values are given here.
A ground-state H atom absorbs a photon and makes a transition to n=4 energy level. It then emits a photon of energy 4.085 x 10^-19 Joules. What is the final energy and n value of the atom?
Acetone (CH3)2CO, has a larger dipole moment than water, but NaCl will not dissolve in it.
Determine the molarity of acetic acid in a 15 ml sample of vinegar that requires 22.7 ml of a .550 M solution of NaOH
determine the freezing point of this solution If 18.0 grams of a nonelectrolyte that has molar mass = 44.2 g/mol are combined with 110.0 grams of the solvent,?
Gas diffusion and Viscosity are both transport properties, Derive the general relationship between the viscosity for a gas and diffusion coefficient .calculate the diffusion coefficient if Given that the viscosity of Ar is 223 micro Pascals at 29..
Write down the balanced chemical equation when Fe 3 O 4 reacted with carbon monoxide and calculate mass of carbon dioxide that will be produced in this reaction if 234 g carbon monoxide is reacted with excess Fe 3 O 4 ?
Fourier transform ion cyclotron resonance mass spectrometry yields the highest resolution mass spectra. As an example of the high resolution attainable by this technique
One Step is a product sold as a cleaner/sanitizer and has the formula 2Na2CO3?3H2O2. If 15.175 g of this compound is dissolved in water and diluted to exactly 1 gallon as directed
How do I find the weight percent of each component in the original mixture and would this affect the outcome if Methanol had been used in place of the dichloromethane? Product weight of Oil: 0.11g & Product weight of Polypropylene Glycol : 0.19g.
solution of Cl^- ions are reacted with 0.500 M solution of AgNO3. what is the maximum mass of AgCl that precipitates?
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