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Check all of the following statements that are true: 1.The entropy change of the universe for any spontaneous process is always positive 2.The free energy change for any spontaneous process is always positive 3.The equilibrium constant is always equal to one for any system at equilibrium 4.None of these statements are true 5.The equilibrium constant is always greater than one for an extensive reaction 6.The value of q is always equal to the value of w for a reversible reaction 7.The energy change of the universe for any spontaneous process is always positive
what do the bond angles of boron trifluoride suggest about the hybridization state of the boron atom of water
A 34.32-g sample of a solid is placed in a flask. Liquid toluene, in which the solid is insoluble, is added to the flask so that the total volume of solid and liquid together is 96.44 ml.
Calculate the heat required to raise the temperature of 1.5 L of a liquid with a density 0.75 g/mL and a specific heat of 2.2 J/g/K
If the Ksp of KHT was determined experimentally to be 3.8E-4 at 25 C, calculate the mass of KHT needed to make 200 mL of saturated solution.
Electrical energy can be used to separate water into oxygen gas and hydrogen gas. In one such experiment,
Consider the titration of 100.0 ml of .100M H2NNH2 by .200 M HNO3. Calculate the pH when the following volumes of HNO3 have been added
what mass of oxalic acid dihydrate, H2C2O4 + 2H2O is required to prepare 280.0 ml of a 1.51 M solution of oxalic acid
Explain briefly how you could prepare the buffer solution in (a) if you had available the solid salt of the only one member of the conjugate pair and solution of a strong acid and a strong base.
Draw the structure of aspiring and assign each different type of proton(s) a letter. Then assign the letters to their corresponding peak in the NMR spectrum
What is the final temperature of the water when equilibrium is reached? (Assume a density of 0.998 (g/mL) for water.)
What is the geometry and hybridization of the carbonyl carbon in carboxylic acids and their derivatives.
Which solution will have the lowest boiling point?
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