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Draw the structure of (1S,3R,4R)-1-tert-butyl-3,4-dimethylcyclohexane in its lowest energy chair-conformation.
Discuss the common-ion effect by comparing the solubility of CaCO3 in 3.0 x 102 ml of water and in the presence of 0.015 mole of Ca(NO3)2.
Calculate the heat capacity of methanol (methyl alcohol) at 40°C. 2.6kg of methanol at 15 C enter an evaporator. They exit as vapour at the boiling point.
Explain solution of an unknown acid HX, determine that the pH of the solution is 4.00. What is the [H3O+] in the solution?
Calculate the pH at the equivalence point for the titration of 0.10 M HCl with 0.10 M NH3 (Kb = 1.8 x 10-5).
Define amphoteric behavior and give an example of it other than the one given in your lab manual.
find the ph of the two equivalence points and the volume (ml) of 0.0414 M KOH needed to reach them in the titration of 17.3 mL of 0.130 M H2co3 (first equivalent point = ML KOH, and pH= )
The molal freezing point constant for water is 1.86 C/m. At what temperature will a mixture of 2.00 g of CaCl2(MM: 110.98g/mol) and 25.00 g of water freeze
The heat generated in this reaction helps melt away obstructions such as grease, and the hydrogen gas released stirs up the solids clogging the drain. Calculate the volume of H2 formed
calculate the pH change that takes place when a 100mL of (a) 0.0500M NaOH and (b) 0.0500M HCl is added to 400mL of a buffer solution prepared by mixing 0.200M NH3
If a sample of pure silver (Ag) contains 3.35 x 1022 atoms of iodine, how many moles of silver are in the sample?
List all the covalent and non-covalent interactions that exist between amino acid residues in a polypeptide (besides the peptide bonds).
An experimenter finds that she is unable to establish a premixed carbon monoxide flame when using an oxidizer composed of high-purity O2 (21%) and high-purity N2 (79%)
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