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A researcher claims to have isolated a single molecule of NaCl. A possible reaction to this might be to
a) give the fellow a Nobel prize
b) explain to anyone that wants to listen to you that NaCl is an extended structure formed from ionic bonds that doesn't have individual molecules
c) explain that a single Na and Cl alone would not bond together
d) read the text book and see if it were possible
A hypothetical metal has a face-centered cubic unit cell and a density of 6.12 g/cm3. The molar mass of the metal is 143.2 g/mol. What is the atomic radius of this metal?
What is the final pressure in the container if 705 mL of helium gas at 205 mm Hg is compressed to 255 mL?
Determine the mass of lithium hydroxide produced when 0.38 g of lithium nitride reacts with water to make Ammonia (NH3) and Lithium hydroxide.
hydroxylamine is titrated to the equivalence point with 35.8 m of .15 M HCl. What is the pH at the equivalence point?
What is the mechanism for turning 1-bromotbutane when it reacts with KI and DMF into n-butyl acetate?
Detremine the volume of CO2 produced at the temperature of 23 degree celsius and pressure of 0.985atm?
The pKa of protonated diethylamine is 10.94. What are the major forms present in a dilute soultion that is equimolar in acetic acid and diethylamine
Determine the final temperature achieved in this expansion, and the corresponding work done by the gas for the cases that it is 1) Helium, 2) Krypton.
Determine the molarity of acetic acid in a 15 ml sample of vinegar that requires 22.7 ml of a .550 M solution of NaOH
How much heat is absorbed when 63.7g H2O(l) at 100 degrees C is converted to steam at 100 degrees C? Express your answer in kJ.
HZ is a weak acid. An aqueous solution of HZ is prepared by dissolving 0.020 mol of HZ in sufficient water to yield 1.00 L of solution
A sample of vinegar has a freezing point depression of 20 degrees C. What is the estimated percent by mass of acetic acid in the vinegar? Molar mass of acetic acid is 60g/mol.
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