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Arrange the following in order of decreasing acidity. I. benzoic acid (C6H5CO2H) II. benzyl alcohol (C6H5CH2OH) III. phenol (C6H5OH)
Suppose you have a sample of sodium weighing 11.42 g. How many atoms of sodium are present in the sample.
Acid rain over the Great Lakes has a pH of about 4.5. Acid rain over of the West Coast has a pH of 5.3. How many times more concentrated is the acid in rain over the Great Lakes?
What is the pressure (in mmHg) of the gas inside the apparatus below if the atmospheric pressure is Patm=775 mmHg, h1=20 mmHg, and h2=50 mmHg
Given the reaction 4Al(s)+302(g)--2Al2O3(S), what is the minimum number of moles of oxygen gas required to produce 1.00 mol of aluminum oxide?
If a piece of Calcite (Calcium Carbonate) is put into the lake, would it tend to dissolve? Calcium carbonate solubility is 10^-8.35 M2, and the measured concentration of calcium ion is 0.1mM (millimolar)
Exactly 100 mL of 0.19 Mnitrous acid (HNO2) are titrated with a 0.19 M NaOH solution. Calculate the pH for the following. (a) the initial solution
Explain why a determination of the rate law can never prove a proposed reaction mechanism but can sometimes disprove
How many atoms occupy 23 moles of oxygen gas? What conditions must be specified first to determine this?
At 700 K, the equilibrium constant, Kc, for the reaction H2 + I2 2 HI is 49.0. How many moles of H2 would have to be added to 1.00 mole of I2 in a 10.0-L flask to get a 90.0% yield
Use the dipole moments of and ( HCl= 1.08, Hf= 1.82) together with the percent ionic character of each bond ( HCl= 20% ionic, HF= 45% ionic) to estimate the bond length in each molecule.
Explain the role of a spin vane or boiling stones that are added to a liquid that is to be heated or distilled
The pH of the solution at the equivalence point. e) The pH of the solution after 40.0 mL of HCl are added.
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