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In a .050 M HCl solution an indicator is not all in acid form. For methyl orange, what percentage of the indicator is in each form?
Describe Lavoisiers experiment with mercury. How does this experiment show the law of conservation of mass
assume that ethanol c2h5oh of 155 grams at the temperature of 25 degrees celsius nbspis mixed with 250 grams of
A 25.0 mL sample of 0.400 M NH3(aq) is titrated with 0.400 M HCl(aq). What is the pH at the equivalence point. (Kb of NH3 = 1.8 ´ 10-5)
A beaker with 1.70×102 mL of an acetic acid buffer with a pH of 5.000 is sitting on a benchtop. The total molarity of acid and conjugate base in this buffer is 0.100 M. A student adds 6.20 mL of a 0.490 it M HCl solution to the beaker. How much wi..
A mixture intially contains A, B,C in the following concentrations: A= .700 B= .850 C=.400. the following reaction occurs and an equilibrium is established.
typical hot air balloons used on sightseeing flights attain volumes of 3000 m3. a typical gross weight balloon basket
Calculate delta Grxn(in KJ) for the following reaction at 298K: 2H2(g)+CO(g)=CH3OH(g) given that delta H=-90.7 Kj and delta S=-221.5 J/K for this process.
Determine the pH of each of the following solutions. (a) 0.382 M hypochlorous acid (weak acid with Ka = 3e-08). (b) 0.900 M hypoiodous acid (weak acid with Ka = 2.3e-11). (c) 0.597 M pyridine (weak base with Kb = 1.7e-09).
Determine symmetry types for all normal modes of vibration for NH3, which has trigonal pyramidal geometry C3v. Use the internal coordinates analysis method
Match the element to the subshell containing unoccupied or partially occupied orbitals. Rubidium Vanadium Boron Uranium Tungsten Magnesium A. 5d B. 2p C. 5f D. 3s E. F. 4s G. 3d H. 4d I. 5s J. 2s K. 4p
determine the molecule weight of the liquid and the density of the vapor under these condition?
The compound produced when 1-hexene is reacted with sulfuric acid and water as the solvent is 2-hexanol. what kind of reaction would this be considered? a) 1,4 addition b)proceeds via a carbanion
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