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The Lakes that have been acidified by acid rain can be neutralized by the addition of limestone (CaCO3). Explain how much limestone in kilograms would be needed to completely neutralize a 5.2 × 10 9 L lake containing 5.0 × 10 -3 g of H2SO4 per liter?
How many grams of acetylsalicylic acid (aspirin, C9H8O4) are present in 1.32 x 10-2 mol of C9H8O4
why is it that a solution of sodium dichromate in sulfuric acid is perfect to oxidize a secondary alcohol to a
What happens to the solubility of an ionic compound as ionic strength of the solution increases up to ~0.5 M)? Why is there a correlation between the solubility of an ionic compound and the ionic strength of the solution?
How many grams of solid NaOH (MM=40.0) are needed to convert the(-)-amine diastereomeric salt into its free amine. How many mL of a 2.5 M NaOH solution are needed to convert the(-)-amine diastereomeric salt into its free amine
the standard recipe used in an exercise uses 3.0 ml of 0.25 phenanthroline solution in 100 ml of final solution to
We add some solid silver chromate (Ag2CrO4, Ksp = 1.100x10-12) to a solution of 1.2202 M Li2CrO4. After equilibrium is achieved, what is the pAg (=-log[Ag+]) of this solution
Using the peak intensities provided below for the molecular ion region of an unknown, draw the corresponding mass spectrum. Be sure to label the axes and any peaks.
Which of the following could be the results of the decomposition of the other sample, being consistent with the law of constant composition (also called the law of definite proportions or law of definite composition)?
Solid carbon dioxide, CO2, (dry ice) goes directly from solid to gaseous state at -78°C. The molar heat of sublimation is 25. 2 kJ/mol.
Although the viscosity varies over a factor of more than two in the series from hexane to nonane, the surface tension at at 25 degrees Celsius increases by only about 20% in the same series. How do you account for this
The hypothetical element, Bc, has three stable isotopes. The isotopic abundances and masses of the three isotopes are
Draw a Lewis structure that obeys the octet rule for each of the following anions. (Assign lone pairs, radical electrons, and atomic charges where appropriate.)
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