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You often work with salts of Fe3+, Pb2+, andAl3+ in the laboratory. You are given a solutioncontaining all three of these ions, each at the concentration of0.10M. To separate these ions, you slowly add NaOH solution. What is the order in which these metal ion hydroxides will precipitate?
a 4.305-gram sample of a nonelectrolyte is dissolved in 105 grams of water. the solution freezes at -1.23degc.
Why did the grape juice change color when an acid or base was added. 5. You added a base, sodium bicarbonate, to test tube 1 that contained citric acid and an acid to test tube 2 that contained base.
Using the data below. Assume the cells are roughly spherical. What is the average cell surface area
The vapor pressure of chloroform (CHCl3, molar mass 119.5 g/mol) is 4.00 x 10^2 torr at 42.7 C. if 40.0 g of CHCl3 is enclosed in a 10.0 L container, how much liquid CHCl3, if any, will remain in the container
calculate the de broglie wavelength of an electron in the ground state of the h atom. show that this wavelength is
At 25°C, K = 0.090 for the following reaction. H2O(g) + Cl2O(g) 2 HOCl(g) Calculate the concentrations of all species at equilibrium for each of the following cases. (a) 1.4 g H2O and 2.3 g Cl2O are mixed in a 1.4-L flask. HOCl Cl2O H2O (b) 1.0 mo..
Use the polygon in circle method to construct a pie molecular orbital diagram for the benzene dianion c6h6 -2 and explain why, on this basis, you would or would not expect it to be stable.
Observe the d-orbitals on a central metal and use the character table to derive their irreducible representations (remember which column to look at). Circle any that are nonbonding for sigma interactions.
Give the structure that corresponds to the following molecular formula and 1H NMR spectrum: C7H12Cl2: ? 1.07 (integral = 6203, s); ? 2.28 (integral = 1402, d, J = 6 Hz)
A researcher studying the nutritional value of a new candy places a 5.30-gram sample of the candy inside a bomb calorimeter and combusts it in excess oxygen.
What is the pH of a solution of a strong acide like tintric acid, HNO3, which is 5.6 x 10^-4 M? [HNO3 is a strong acide, so it is completly ionized in aqueous solution
If carbon dioxide gas is collected over water at 25 °C and 775 torr, what is the partial pressure of the CO2? The vapor pressure of water at 25 °C is 23.8 torr.
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