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Which compound would have the lowest boiling point?
a. Heptane
b. 2,2,3-Trimethylbutane
c. 3-Methylhexane
d. 2,3-Dimethylpentane
with this balanced equation of copper carbonate calculate the concentration of copper in solution
How much water must be added to 534. mL of 0.180 M HCl to produce a 0.135 M solution? (Assume that the volumes are additive.)
What is the molality of a solution of ethylene glycol that contains 63.0 g of (CH2OH)2 dissolved in 557.5 g of water? Use molar masses with at least as many significant figures as the data given.
How many grams of Fe(OH)2 (Ksp = 1.8 * 10-15) will dissolve in one liter of water buffered at pH = 12.00
LiI has a lattice E of -7.3x10^2 kJ/mol and a heat of hydration of -793kJ/mol. Heat of solution is -60kJ/mol. Determine how much heat is evolved
In aqueous solution, amphipathic molecules form aggregates of micelles or bilayers that maximize hydrophobic interaction. Describe and draw what would happen if instead of an aqueous solution, amphilic molecules were dissolved in an organic solven..
At equilibrium, the concentration of the product methanol was found to be 0.060 M. The value of the equilibrium constant Kc for this reaction is
A 25.0-mL sample of 1.00 M NH3 is titrated with 0.15 M HCl. What is the pH of the solution after 15.00 mL of acid have been added to the ammonia solution? Kb = 1.8 × 10¯5
Algebraically substitute in the symbols for the specific heat capacities for the copper and water (Cs,Cu, and Cs,H2O), the symbols for masses (mCu and mH2O), and the symbols for the temperature change (Tf, Ti, Cu, and Ti,H2O).
Contains about 1.00 mg of fluoride per gram of toothpaste. The fluoride compound that is most often used in toothpaste is sodium fluoride, NaF, which is 45 percent fluoride by mass. how many mg of NaF are in a typical 8.2 ounce of toothpaste?
Calculate the percent purity of a sample of impure H2C2O4*2H2O if .4006 grams of this material requires a titration with 28.62mL of a KMnO4 solution, 1.000 mL of which contains 5.980mg of KMnO4.
Distinguish between which are aromatic compound given multiple structures, How can you tell the difference between which set of given compound structures would have highest resonance energy
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