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In an atom, how many electrons can have the quantum number designations n=3, ml=0, ms=1/2
What mass of silver chloride will be recovered if excess sodium chloride is added to 500 mL of solution containing 10.79g of Ag+?
Rubidium has two stable isotopes, 85Rb and 87Rb. The 87Rb isotope has a natural abundance of 27.83% and an atomic mass of 86.909183 amu. Calculate the percent abundance and atomic mass of the 85Rb isotope.
Which step is the rate determining step on a reaction?
the osmotic pressure of the solution is 0.443 atm. What is the percent ionization of this acid? I got 20% but its wrong
Compute the amount of heat needed to completely sublime 43.0 grams of solid dry ice at its sublimation temperature. (The heat of sublimation for carbon dioxide =32.3).
What is the maximum number of electrons that can be in a second electron shell (principal energy level)?
The pH of a 0.10 M nicotinic acid solution is 2.93. What is the approximate value of Ka for nicotinic acid, HC6H4NO2? Assume small percent dissociation. pH = ?log10[H+].
which of the following best describe the geometry about the carbone-carbon double bond in the alkene? choose from the following answer. (a) E (b) Z (c) neither E nor Z
BaSO4 is listed as insoluble. Actually, BaSO4 is highly soluble, Ksp=1.1e-10. What is the solubility, in mg/l?
the following reactions 2K(s) +Br2(l) --> 2KBr (s) AgNO3 (aq) + NaCl (aq) -->AgCl (s) + NaNO3 (aq) HCl (aq) + KOH (aq) --> H2O (l) + KCl (aq) are all examples of
A equilibrium mixture of H2,I2, and HI at 458C contains 0.110 mol of H2, 0.110 mol of I2, and 0.761 mol of HI in a 5.00 L vessel. What is the equilibrium partial pressure of H2 when equilibrium is reestablished following the addition of 0.100 mol ..
Suppose that this individual now decides to give one-eighth of a percent (0.125 ) of her new net worth to charity. How many dollars are given to charity? The answer is not 10.0025 or 12.5. I have been working at this problem and just need to figur..
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