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How many grams of dry NH4Cl need to be added to 2.30 L of a 0.100 M solution of ammonia,NH3, to prepare a buffer solution that has a pH of 9.00? Kb for ammonia is 1.8x 10^-5.
Why, in a primitive cubic cell, do anions sit on the lattice points while the cation fills the lattice hole in the center a. Because it is favorable for anions to be as close to one another as possible.
Define Supercritical fliud. Give an example and it's properties. Which fundemental thermodynamic property is important to the solubility
Calculate the concentration of I- in a solution obtained by shaking 0.10 M KI with an excess of AgCl.
Which pair is written with the first member having the higher boiling point?
A sample of sodium hydrogen carbonate solid weighing 0.1075 g requires 49.35 mL of a hydrochloric acid solution to react completely.
Write out a complete reaction mechanism for the synthesis of the 1,2-diphenyl-1,2-ethanediol acetal from 1,2-diphenyl-1,2-ethanediol and 2,2-dimethoxypropane in the presence of acid
Propose a reasonable reaction mechanism for the sodium hypochlorite oxidation of 3-heptanol. Give the IUPAC name of the expected product
Assume that the metal rack is cooled from 240°F to 85°F, the temperature of the outlet water. The amount of heat removed from the retort walls in cooling from 240 to 100°F is 10 000 btu. Radiation loss from the retort during cooling is estimated a..
Explanation for the Chemical Structure of Hydrocortisone, Can you please explain the chemical structure of cortisol and hydrocortisone? What is the difference on the structure? How many functional groups hydrocortisone has and what are they?
A compound contains atoms of three elements X, Y and Z.The oxidation numbers are X +2, Y +5 & Z -2.formula ? How can we formulate formula of a ternary compound using their valency?
Which of the compounds contain chiral centers? (you may choose more than one answer)
when making ice cream, the temperature of the ingredients is decreased to below the freezing point of pure water by using a surrounding water bath that contains a large amount of table salt, NaCl.
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