Atomic bonding point of view
Pure aluminum is ductile metal withlow tensile strength and hardness. Its oxide Al2O3 (alumaina) is extremenly strong, hard, and brittle. Can you explain this difference from am atomic bonding point of view?
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A weather balloon is filled with 15.0 liters of helium at 27 degree Celsius and 0.99 atm. What volume does the balloon have when it has risen to a point in the atmosphere where the pressure is 45 torr and the temperature is -125 degree Celsius?
How many grams of riboflavin (molecular mass = 374.6g/mol) are required to prepare a 1.00L solution that is 5.00 x 10^-5 M
Draw the structure of the major small-base dehydrohalogenation product of 2-bromo-3-methylbutane
If your methanol was wet (contained water), what compound would be formed and isolated along with trityl methy ether. Explain and what effect would that have on the melting point of the product
A 1.00 g sample of stream water was found to contain 5.0*10-6 g lead. calculate the concentration of lead in the stream water in units of % (m/m),ppt and ppm. which is the most suitable unit
Although pyrrole is a much weaker base than most other amines, it is a much stronger acid (pKa ≈ 15 for the pyrrole versus 35 for diethyl amine). The N-H proton is readily abstracted by base to yield the pyrrole anion, C4H4N. Explain.
The solubility of silver sulfate, Ag2SO4, at a pressure of 37 atmospheres and 37 degrees, has been measured at 1.9 x 10^-2 mols/Liter. Calculate the solubility product of this compound at this temperature and pressure.
Write a balanced equation for the reaction that occurs when hydrogen sulfate ion behaves as a Brønsted-Lowry acid in water.
EDTA is utilized to slow microbial degradation of mayonnaise by preventing bacterial uptake of iron. Assuming that mayonnaise has a pH of 3.9 and a total iron content of 10-6 mole/liter, how much EDTA must be added to complex 99% of the total Fe
When a 23.7 mL sample of a 0.362 M aqueous nitrous acid solution is titrated with a 0.310 M aqueous potassium hydroxide solution, what is the pH after 41.5 mL of potassium hydroxide have been added
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