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Give the main/longest chain name (1pt), functional group(s) name (2pts) and IUPAC name (2pts) of the following organic compound: CH3CH2CH2CH2CH2OH.
A neutral amino acid has a pka1 of 4.0 and a pka2 of 10.0. What is the pH of the solution of this amino acid if 80% is in the acid form and 20% is in the base form.
How many amps are required to produce 72.5 g of potassium metal from a sample of molten potassium chloride
The molecules ChR2 (Ch = O, S, Se, Te) are all bent. How and why do the bond angles change when going down in the group 16
In one of the neutron-induced fission reactions of U-235(atomic mass = 235.043922 ), the products are Ba -140 and Kr-93 (a radioactive gas). What volume of Kr-93(at and 1.0 ) is produced when 1.80 g of U-235 undergoes this fission reaction
Calculate the pH of the buffer if 10 drops of 0.1mol/L of NaCH3COO is added to 10 drops of 0.1 mol/L of CH3COOH. Equations useful to obtain the solution
determine the °rxn (in units of kJ/mol NaOH) for the neutralization reaction between aqueous NaOH and HCl. Assume that all of the heat that goes into the water is from the reaction and that no heat is lost to the calorimeter or the surroundings. A..
Calculate the freezing point of a solution that contains 30.0 g of urea, CH4N2O, in 200. g of water. Urea is a nonvolatile nonelectrolyte. Kf for H2O = 1.86°C/m.
A few of cyclohexane solvent vaporized during the temperature versus time measurement. Will the loss of cyclohexane result in its freezing point being recorded as too high, too low or unaffected. Explain.
If none of the available reagents can be used for this purpose, then identify another reagent from the table that could be used. For each reagent you've identified, write down a balanced chemical equation for the reaction that occurs.
What will be the value of E cell and E0 cell when the Cu/Zn battery has "run down" I.e., reached equillibrium? Also will the concentrations of Zn2+ and Cu2+ be large or small when the battery has "run down"? Does this make sense?
During World War II, tritium (3H) was a component of fluorescent watch dials and hands. Assume you have such a watch that was made in January 1944. If 16% or more of the original tritium was needed to read the dial in dark places,
Which of the following is/are network covalent compounds A. sodium chloride B. diamond C. quartz (silicon dioxide) D. both B & C
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