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Which of the following quantum numbers describes the shape of an orbital? A)principal quantum number B)Schrodinger quantum number C) spin quantum number D) Angular momentum quantum number E)magnetic quantum number
The H3O+ concentration of a 0.10M solution of acetic acid decreases when which of the following substances are added?
1. a nonelectrolyte solute of 2.79grams is dissolved in h2o to make a solution of 235 ml at 29 degree celsius an
calculate the number of excess reagent units remaining when 154 C6H14 molecules and 1539 O2 molecules react?
The excess I3- was titrated with 50.00 mL of a 0.02000 M Na2S2O3 solution. What was the mass percent of arsenic trichloride in the original sample?
The kinetics of decomposition of dinitrogen pentaoxide is studied at 50 degrees C and at 75 degrees C. Which of the following statements concerning the studies is correct
the net change in entropy of the system and surroundings considered together must be a positive quantity; (e) the entropy of the universe must remain constant.
How do standard additions and calibration curves differ in quntification? What are the advantages and disadvantages of each?
Petane and 1-butanol are organic liquids with similar molecular masses but sunstantially different solubility behavior. Which of the two would you expect to be more soluble in water
The Ksp of AgCl at 25oC is 1.0 x 10^-10. Calculate the concentrations fo Ag+ and Cl- in a saturated solution of AgCl, and the molar solubility of AgCl.
if 24g mg is used and the percentage yield is 95 how many grams of magnesium hydroxide should be
The reaction of 2,2-dimethyl-1-propanol with HBr is very slow and gives 2-bromo-2-methyl-propane as the major product
A mixture of gases contains 5.31 g of He, 2.91 g of SO2, and 5.62 g of Ne. If the total pressure of the mixture is 3.81 atm, what is the partial pressure of each component
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