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There are two isomeric alkenes that would produce 1-iodo-1-methylcyclohexane on treatment with HI. One is more reactive than the other. Draw both structures.
Indicate which of the following sets of quantum numbers in an atom are unacceptable. More than one answer could be right!
Draw a formula for the lowest molecular weight compound that contains C, H, and possibly O, N or S, is a chiral compound, contains ONLY one functional group, and is a sulfide.
Calculate the final temperature of 34mL of ethanol initially at 20celcuis upon absorption of 739 J of heat. (density of ethanol =0.789g/mL )
If 29.10 mL of a 0.145 M nitric acid is required to neutralize 50.00 mL of barium hydroxide solution, what is the molar concentration of the base?
Determine the mass of the lead in grams if the water level in a graduated cylinder initially at 224 mL rises to 274 mL after a piece of Pb is submerged?
When sodium reacts with water, 255 mL of hydrogen gas forms along with sodium hydroxide. What mass of sodium is needed for this reaction?
calculate mass of CCl 4 that formed if 1.5 moles of CH 4 react with 1.4 moles of Cl?
Consider a situation in which 211g of P4 are exposed to 240g of O2. What is the maximum amount of P2O5 that can theoretically be made from 211g of P4 and excess oxygen?
the fraction of the initial mass of gas remaining in the tank if carbon dioxide obeys the ideal gas and PR equations of state
How many moles of HCl need to be added to 150 mL of 0.50 M NaZ to have a solution with a pH of 6.50? (Ka of HZ is 2.3e-5). Assume negligible volume of the HCl.
How much 1.0 M NaOH must be added to a 100 ml of 10 mM H3PO4 to raise the pH of the solution to 7.0? B) If 2 volumes of 2.0 M Na2HPO4 are added to 1 volume of 0.1 M H3PO4, what is the pH of the resulting phosphate buffer?
Also, give an estimate the pl of this tetrapeptide (you may assume the pKa of any acidic R group is 4, the pKa of any basic R group is 11.5, and the pKa of the alpha-COOH is 2, and the alpha-NH3 is 9.5).
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