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Predict which substance in each of the following pairs has a greater molar entropy. 1. P4 (g) vs. P2 (g) 2. HNO3 (aq) vs. HNO3 (l) 3. CuSO4 (s) vs. CuSO4 * 5H2O (s)
A 25.0mL sample of HCl solution is titrated with a 0.139 M NaOH solution. The equivalence point is reached with 30.2 mL of base
Using the structure of mathyl orange as an example, draw resonance froms to show how conjugation extends throughout the molecule.
Use Coulomb's law to calculate the ionization energy in kJ/mol of an atom composed of a proton and an electron separated by 203.00 pm What wavelength of light would have sufficient energy to ionize the atom
a 0.831-g sample of so3 is placed in a 1.00-l container and heated to 1100 k. the decomposes to so2 and o2
the standard reduction potential for the cu2+/cu redox couple is +.34V; that for h2o/H2, OH- at a ph of 7 is -.41V. For the electrolysis of a neutral 1.0M CuSo4 solution, write the equation for the half reaction occuring at the cathode at standard..
Iron(II) chloride (melting point 677°C) and potassium chloride (melting point 776°C) form the compounds KFeCl3 and K2FeCl4 at elevated temperatures.
A solid mixture consists of 35.7 of KNO3 (potassium nitrate) and 6.3g of K2SO4 (potassium sulfate). The mixture is added to 130. of water. If the solution described in the introduction is cooled to 0
The acid solution gives no precipitate when treated with 0.1 M AgNO3. Identify the components of the solid. EXPLAIN.
A beaker with 175 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 8.60 mL of a 0.340 M HCl solution to the beaker
suggest at least one characteristic absorption each in the ir spectra of 9-flurenone and 9-hydroxyfluorene that could
explain why cis-1-chloro-4-t-butylcyclohexane reacts rapidly with sodium ethoxide while the trans-isomer react slowly
A certain complex of metal M is formulated as MCl3*3H20. The coordination number of the complex is not known, but is expected to be 4 or 6. would reaction of the complex with AgNO3(aq) provide information about the coordination number?
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